diff --git a/code/__DEFINES/atmospherics/atmos_mapping_helpers.dm b/code/__DEFINES/atmospherics/atmos_mapping_helpers.dm
index 5f3c14e9220..75ad188d8de 100644
--- a/code/__DEFINES/atmospherics/atmos_mapping_helpers.dm
+++ b/code/__DEFINES/atmospherics/atmos_mapping_helpers.dm
@@ -26,10 +26,9 @@
 #define ATMOS_TANK_H2 "hydrogen=100000;TEMP=293.15"
 #define ATMOS_TANK_HYPERNOBLIUM "nob=100000;TEMP=293.15"
 #define ATMOS_TANK_MIASMA "miasma=100000;TEMP=293.15"
-#define ATMOS_TANK_NO2 "no2=100000;TEMP=293.15"
+#define ATMOS_TANK_NITRIUM "nitrium=100000;TEMP=293.15"
 #define ATMOS_TANK_PLUOXIUM "pluox=100000;TEMP=293.15"
 #define ATMOS_TANK_PROTO_NITRATE "proto_nitrate=100000;TEMP=293.15"
-#define ATMOS_TANK_STIMULUM "stim=100000;TEMP=293.15"
 #define ATMOS_TANK_TRITIUM "tritium=100000;TEMP=293.15"
 #define ATMOS_TANK_H2O "water_vapor=100000;TEMP=293.15"
 #define ATMOS_TANK_ZAUKER "zauker=100000;TEMP=293.15"
@@ -102,9 +101,9 @@
 #define ATMOS_GAS_MONITOR_OUTPUT_MIASMA "miasma_out"
 #define ATMOS_GAS_MONITOR_SENSOR_MIASMA "miasma_sensor"
 
-#define ATMOS_GAS_MONITOR_INPUT_NO2 "no2_in"
-#define ATMOS_GAS_MONITOR_OUTPUT_NO2 "no2_out"
-#define ATMOS_GAS_MONITOR_SENSOR_NO2 "no2_sensor"
+#define ATMOS_GAS_MONITOR_INPUT_NITRIUM "nitrium_in"
+#define ATMOS_GAS_MONITOR_OUTPUT_NITRIUM "nitrium_out"
+#define ATMOS_GAS_MONITOR_SENSOR_NITRIUM "nitrium_sensor"
 
 #define ATMOS_GAS_MONITOR_INPUT_PLUOXIUM "pluoxium_in"
 #define ATMOS_GAS_MONITOR_OUTPUT_PLUOXIUM "pluoxium_out"
@@ -114,10 +113,6 @@
 #define ATMOS_GAS_MONITOR_OUTPUT_PROTO_NITRATE "proto-nitrate_out"
 #define ATMOS_GAS_MONITOR_SENSOR_PROTO_NITRATE "proto-nitrate_sensor"
 
-#define ATMOS_GAS_MONITOR_INPUT_STIMULUM "stimulum_in"
-#define ATMOS_GAS_MONITOR_OUTPUT_STIMULUM "stimulum_out"
-#define ATMOS_GAS_MONITOR_SENSOR_STIMULUM "stimulum_sensor"
-
 #define ATMOS_GAS_MONITOR_INPUT_TRITIUM "tritium_in"
 #define ATMOS_GAS_MONITOR_OUTPUT_TRITIUM "tritium_out"
 #define ATMOS_GAS_MONITOR_SENSOR_TRITIUM "tritium_sensor"
diff --git a/code/__DEFINES/reactions.dm b/code/__DEFINES/reactions.dm
index b1bb4ef5f86..5f067667c80 100644
--- a/code/__DEFINES/reactions.dm
+++ b/code/__DEFINES/reactions.dm
@@ -19,8 +19,8 @@
 #define N2O_DECOMPOSITION_MIN_ENERGY 1400
 #define N2O_DECOMPOSITION_ENERGY_RELEASED 200000
 
-#define NITRYL_DECOMPOSITION_ENERGY 30000
-#define NITRYL_FORMATION_ENERGY 100000
+#define NITRIUM_DECOMPOSITION_ENERGY 30000
+#define NITRIUM_FORMATION_ENERGY 100000
 #define NITROUS_FORMATION_ENERGY 10000
 //tritium reaction
 #define TRITIUM_BURN_OXY_FACTOR 100
@@ -39,11 +39,6 @@
 #define METAL_HYDROGEN_MINIMUM_PRESSURE 1e7
 #define METAL_HYDROGEN_FORMATION_ENERGY 20000000
 #define SUPER_SATURATION_THRESHOLD 96
-#define STIMULUM_HEAT_SCALE 100000
-#define STIMULUM_FIRST_RISE 0.65
-#define STIMULUM_FIRST_DROP 0.065
-#define STIMULUM_SECOND_RISE 0.0009
-#define STIMULUM_ABSOLUTE_DROP 0.00000335
 #define REACTION_OPPRESSION_THRESHOLD 5
 #define NOBLIUM_FORMATION_ENERGY 2e7
 #define STIM_BALL_GAS_AMOUNT 5
@@ -52,7 +47,6 @@
 #define BZ_RESEARCH_SCALE 4
 #define BZ_RESEARCH_MAX_AMOUNT 400
 #define METAL_HYDROGEN_RESEARCH_MAX_AMOUNT 3000
-#define STIMULUM_RESEARCH_AMOUNT 50
 
 #define PLUOXIUM_TEMP_CAP 200
 
diff --git a/code/game/machinery/computer/atmos_control.dm b/code/game/machinery/computer/atmos_control.dm
index b8628194002..7ab28b03a50 100644
--- a/code/game/machinery/computer/atmos_control.dm
+++ b/code/game/machinery/computer/atmos_control.dm
@@ -58,18 +58,15 @@
 /obj/machinery/air_sensor/atmos/miasma_tank
 	name = "miasma tank gas sensor"
 	id_tag = ATMOS_GAS_MONITOR_SENSOR_MIASMA
-/obj/machinery/air_sensor/atmos/nitryl_tank
-	name = "nitryl tank gas sensor"
-	id_tag = ATMOS_GAS_MONITOR_SENSOR_NO2
+/obj/machinery/air_sensor/atmos/nitrium_tank
+	name = "nitrium tank gas sensor"
+	id_tag = ATMOS_GAS_MONITOR_SENSOR_NITRIUM
 /obj/machinery/air_sensor/atmos/pluoxium_tank
 	name = "pluoxium tank gas sensor"
 	id_tag = ATMOS_GAS_MONITOR_SENSOR_PLUOXIUM
 /obj/machinery/air_sensor/atmos/proto_nitrate_tank
 	name = "proto-nitrate tank gas sensor"
 	id_tag = ATMOS_GAS_MONITOR_SENSOR_PROTO_NITRATE
-/obj/machinery/air_sensor/atmos/stimulum_tank
-	name = "stimulum tank gas sensor"
-	id_tag = ATMOS_GAS_MONITOR_SENSOR_STIMULUM
 /obj/machinery/air_sensor/atmos/tritium_tank
 	name = "tritium tank gas sensor"
 	id_tag = ATMOS_GAS_MONITOR_SENSOR_TRITIUM
@@ -158,10 +155,9 @@ GLOBAL_LIST_EMPTY(atmos_air_controllers)
 		ATMOS_GAS_MONITOR_SENSOR_H2 = "Hydrogen Tank",
 		ATMOS_GAS_MONITOR_SENSOR_HYPERNOBLIUM = "Hypernoblium Tank",
 		ATMOS_GAS_MONITOR_SENSOR_MIASMA = "Miasma Tank",
-		ATMOS_GAS_MONITOR_SENSOR_NO2 = "Nitryl Tank",
+		ATMOS_GAS_MONITOR_SENSOR_NITRIUM = "Nitrium Tank",
 		ATMOS_GAS_MONITOR_SENSOR_PLUOXIUM = "Pluoxium Tank",
 		ATMOS_GAS_MONITOR_SENSOR_PROTO_NITRATE = "Proto-Nitrate Tank",
-		ATMOS_GAS_MONITOR_SENSOR_STIMULUM = "Stimulum Tank",
 		ATMOS_GAS_MONITOR_SENSOR_TRITIUM = "Tritium Tank",
 		ATMOS_GAS_MONITOR_SENSOR_H2O = "Water Vapor Tank",
 		ATMOS_GAS_MONITOR_SENSOR_ZAUKER = "Zauker Tank",
@@ -345,12 +341,12 @@ GLOBAL_LIST_EMPTY(atmos_air_controllers)
 	sensors = list(ATMOS_GAS_MONITOR_SENSOR_MIASMA = "Miasma Tank")
 	circuit = /obj/item/circuitboard/computer/atmos_control/tank/miasma_tank
 
-/obj/machinery/computer/atmos_control/tank/nitryl_tank
-	name = "Nitryl Supply Control"
-	input_tag = ATMOS_GAS_MONITOR_INPUT_NO2
-	output_tag = ATMOS_GAS_MONITOR_OUTPUT_NO2
-	sensors = list(ATMOS_GAS_MONITOR_SENSOR_NO2 = "Nitryl Tank")
-	circuit = /obj/item/circuitboard/computer/atmos_control/tank/nitryl_tank
+/obj/machinery/computer/atmos_control/tank/nitrium_tank
+	name = "Nitrium Supply Control"
+	input_tag = ATMOS_GAS_MONITOR_INPUT_NITRIUM
+	output_tag = ATMOS_GAS_MONITOR_OUTPUT_NITRIUM
+	sensors = list(ATMOS_GAS_MONITOR_SENSOR_NITRIUM = "Nitrium Tank")
+	circuit = /obj/item/circuitboard/computer/atmos_control/tank/nitrium_tank
 
 /obj/machinery/computer/atmos_control/tank/pluoxium_tank
 	name = "Pluoxium Supply Control"
@@ -366,13 +362,6 @@ GLOBAL_LIST_EMPTY(atmos_air_controllers)
 	sensors = list(ATMOS_GAS_MONITOR_SENSOR_PROTO_NITRATE = "Proto-Nitrate Tank")
 	circuit = /obj/item/circuitboard/computer/atmos_control/tank/proto_nitrate_tank
 
-/obj/machinery/computer/atmos_control/tank/stimulum_tank
-	name = "Stimulum Supply Control"
-	input_tag = ATMOS_GAS_MONITOR_INPUT_STIMULUM
-	output_tag = ATMOS_GAS_MONITOR_OUTPUT_STIMULUM
-	sensors = list(ATMOS_GAS_MONITOR_SENSOR_STIMULUM = "Stimulum Tank")
-	circuit = /obj/item/circuitboard/computer/atmos_control/tank/stimulum_tank
-
 /obj/machinery/computer/atmos_control/tank/tritium_tank
 	name = "Tritium Supply Control"
 	input_tag = ATMOS_GAS_MONITOR_INPUT_TRITIUM
diff --git a/code/game/objects/items/circuitboards/computer_circuitboards.dm b/code/game/objects/items/circuitboards/computer_circuitboards.dm
index f7fe1424ca5..87131360df6 100644
--- a/code/game/objects/items/circuitboards/computer_circuitboards.dm
+++ b/code/game/objects/items/circuitboards/computer_circuitboards.dm
@@ -104,9 +104,9 @@
 	name = "Miasma Supply Control (Computer Board)"
 	build_path = /obj/machinery/computer/atmos_control/tank/miasma_tank
 
-/obj/item/circuitboard/computer/atmos_control/tank/nitryl_tank
-	name = "Nitryl Supply Control (Computer Board)"
-	build_path = /obj/machinery/computer/atmos_control/tank/nitryl_tank
+/obj/item/circuitboard/computer/atmos_control/tank/nitrium_tank
+	name = "Nitrium Supply Control (Computer Board)"
+	build_path = /obj/machinery/computer/atmos_control/tank/nitrium_tank
 
 /obj/item/circuitboard/computer/atmos_control/tank/pluoxium_tank
 	name = "Pluoxium Supply Control (Computer Board)"
@@ -116,10 +116,6 @@
 	name = "Proto-Nitrate Supply Control (Computer Board)"
 	build_path = /obj/machinery/computer/atmos_control/tank/proto_nitrate_tank
 
-/obj/item/circuitboard/computer/atmos_control/tank/stimulum_tank
-	name = "Stimulum Supply Control (Computer Board)"
-	build_path = /obj/machinery/computer/atmos_control/tank/stimulum_tank
-
 /obj/item/circuitboard/computer/atmos_control/tank/tritium_tank
 	name = "Tritium Supply Control (Computer Board)"
 	build_path = /obj/machinery/computer/atmos_control/tank/tritium_tank
diff --git a/code/game/objects/items/nitrium_crystals.dm b/code/game/objects/items/nitrium_crystals.dm
new file mode 100644
index 00000000000..b81a96bca18
--- /dev/null
+++ b/code/game/objects/items/nitrium_crystals.dm
@@ -0,0 +1,18 @@
+/obj/item/nitrium_crystal
+	desc = "A weird brown crystal, it smokes when broken"
+	name = "nitrium crystal"
+	icon = 'icons/obj/atmos.dmi'
+	icon_state = "nitrium_crystal"
+	var/cloud_size = 1
+
+/obj/item/nitrium_crystal/attack_self(mob/user)
+	. = ..()
+	var/datum/effect_system/smoke_spread/chem/smoke = new
+	var/turf/location = get_turf(src)
+	create_reagents(5)
+	reagents.add_reagent(/datum/reagent/nitrium_low_metabolization, 3)
+	reagents.add_reagent(/datum/reagent/nitrium_high_metabolization, 2)
+	smoke.attach(location)
+	smoke.set_up(reagents, cloud_size, location, silent = TRUE)
+	smoke.start()
+	qdel(src)
diff --git a/code/game/turfs/open/floor/reinf_floor.dm b/code/game/turfs/open/floor/reinf_floor.dm
index 6c3670e42ee..3b201bf6d65 100644
--- a/code/game/turfs/open/floor/reinf_floor.dm
+++ b/code/game/turfs/open/floor/reinf_floor.dm
@@ -149,10 +149,9 @@
 	name = "\improper Miasma floor"
 	initial_gas_mix = ATMOS_TANK_MIASMA
 
-/turf/open/floor/engine/no2
-	article = "an"
-	name = "\improper NO2 floor"
-	initial_gas_mix = ATMOS_TANK_NO2
+/turf/open/floor/engine/nitrium
+	name = "\improper nitrium floor"
+	initial_gas_mix = ATMOS_TANK_NITRIUM
 
 /turf/open/floor/engine/pluoxium
 	name = "\improper Pluoxium floor"
@@ -162,10 +161,6 @@
 	name = "\improper Proto-Nitrate floor"
 	initial_gas_mix = ATMOS_TANK_PROTO_NITRATE
 
-/turf/open/floor/engine/stimulum
-	name = "\improper Stimulum floor"
-	initial_gas_mix = ATMOS_TANK_STIMULUM
-
 /turf/open/floor/engine/tritium
 	name = "\improper Tritium floor"
 	initial_gas_mix = ATMOS_TANK_TRITIUM
diff --git a/code/modules/atmospherics/gasmixtures/gas_types.dm b/code/modules/atmospherics/gasmixtures/gas_types.dm
index 875fe2caef6..de2c8482f1a 100644
--- a/code/modules/atmospherics/gasmixtures/gas_types.dm
+++ b/code/modules/atmospherics/gasmixtures/gas_types.dm
@@ -1,6 +1,6 @@
 GLOBAL_LIST_INIT(hardcoded_gases, list(/datum/gas/oxygen, /datum/gas/nitrogen, /datum/gas/carbon_dioxide, /datum/gas/plasma)) //the main four gases, which were at one time hardcoded
 //Now this is what I call history
-GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(/datum/gas/oxygen, /datum/gas/nitrogen, /datum/gas/carbon_dioxide, /datum/gas/pluoxium, /datum/gas/stimulum, /datum/gas/nitryl))) //unable to react amongst themselves
+GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(/datum/gas/oxygen, /datum/gas/nitrogen, /datum/gas/carbon_dioxide, /datum/gas/pluoxium))) //unable to react amongst themselves
 
 /proc/meta_gas_list()
 	. = subtypesof(/datum/gas)
@@ -121,15 +121,16 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(/datum/gas/oxygen, /datum/g
 	purchaseable = TRUE
 	base_value = 3
 
-/datum/gas/nitryl
-	id = "no2"
-	specific_heat = 20
-	name = "Nitryl"
-	gas_overlay = "nitryl"
+/datum/gas/nitrium
+	id = "nitrium"
+	specific_heat = 10
+	name = "Nitrium"
+	fusion_power = 7
+	gas_overlay = "nitrium"
 	moles_visible = MOLES_GAS_VISIBLE
 	dangerous = TRUE
-	rarity = 100
-	base_value = 5
+	rarity = 1
+	base_value = 100
 
 /datum/gas/tritium
 	id = "tritium"
@@ -152,14 +153,6 @@ GLOBAL_LIST_INIT(nonreactive_gases, typecacheof(list(/datum/gas/oxygen, /datum/g
 	purchaseable = TRUE
 	base_value = 2
 
-/datum/gas/stimulum
-	id = "stim"
-	specific_heat = 5
-	name = "Stimulum"
-	fusion_power = 7
-	rarity = 1
-	base_value = 100
-
 /datum/gas/pluoxium
 	id = "pluox"
 	specific_heat = 80
diff --git a/code/modules/atmospherics/gasmixtures/reactions.dm b/code/modules/atmospherics/gasmixtures/reactions.dm
index b3f10328785..e63315fa5cd 100644
--- a/code/modules/atmospherics/gasmixtures/reactions.dm
+++ b/code/modules/atmospherics/gasmixtures/reactions.dm
@@ -401,32 +401,33 @@
 			air.temperature = max(((temperature * old_heat_capacity + energy_used) / new_heat_capacity), TCMB) //the air heats up when reacting
 		return REACTING
 
-/datum/gas_reaction/nitryl_decomposition //The decomposition of nitryl. Exothermic. Requires oxygen as catalyst.
+/datum/gas_reaction/nitrium_decomposition //The decomposition of nitrium. Exothermic. Requires oxygen as catalyst.
 	priority_group = PRIORITY_PRE_FORMATION
-	name = "Nitryl Decomposition"
-	id = "nitryl_decomp"
+	name = "Nitrium Decomposition"
+	id = "nitrium_decomp"
 
-/datum/gas_reaction/nitryl_decomposition/init_reqs()
+/datum/gas_reaction/nitrium_decomposition/init_reqs()
 	requirements = list(
 		/datum/gas/oxygen = MINIMUM_MOLE_COUNT,
-		/datum/gas/nitryl = MINIMUM_MOLE_COUNT,
+		/datum/gas/nitrium = MINIMUM_MOLE_COUNT,
 		"MAX_TEMP" = T0C + 70 //Pretty warm, explicitly not fire temps. Time bombs are cool, but not that cool. If it makes you feel any better it's close
 	)
 
-/datum/gas_reaction/nitryl_decomposition/react(datum/gas_mixture/air)
+/datum/gas_reaction/nitrium_decomposition/react(datum/gas_mixture/air)
 	var/list/cached_gases = air.gases
 	var/temperature = air.temperature
 	var/old_heat_capacity = air.heat_capacity()
-	//This reaction is agressively slow. like, a tenth of a mole per fire slow. Keep that in mind
-	var/heat_efficency = min(temperature / (FIRE_MINIMUM_TEMPERATURE_TO_EXIST * 8), cached_gases[/datum/gas/nitryl][MOLES])
-	var/energy_produced = heat_efficency * NITRYL_DECOMPOSITION_ENERGY
 
-	if ((cached_gases[/datum/gas/nitryl][MOLES] - heat_efficency < 0)) //Shouldn't produce gas from nothing.
+	//This reaction is agressively slow. like, a tenth of a mole per fire slow. Keep that in mind
+	var/heat_efficency = min(temperature / (FIRE_MINIMUM_TEMPERATURE_TO_EXIST * 8), cached_gases[/datum/gas/nitrium][MOLES])
+	var/energy_produced = heat_efficency * NITRIUM_DECOMPOSITION_ENERGY
+
+	if ((cached_gases[/datum/gas/nitrium][MOLES] - heat_efficency < 0)) //Shouldn't produce gas from nothing.
 		return NO_REACTION
 
-	ASSERT_GAS(/datum/gas/nitrogen, air)
-	cached_gases[/datum/gas/nitryl][MOLES] -= heat_efficency
-	cached_gases[/datum/gas/oxygen][MOLES] += heat_efficency
+	air.assert_gases(/datum/gas/nitrogen, /datum/gas/hydrogen)
+	cached_gases[/datum/gas/nitrium][MOLES] -= heat_efficency
+	cached_gases[/datum/gas/hydrogen][MOLES] += heat_efficency
 	cached_gases[/datum/gas/nitrogen][MOLES] += heat_efficency
 
 	if(energy_produced> 0)
@@ -435,36 +436,34 @@
 			air.temperature = max(((temperature * old_heat_capacity + energy_produced) / new_heat_capacity), TCMB) //the air heats up when reacting
 		return REACTING
 
-/datum/gas_reaction/nitrylformation //The formation of nitryl. Endothermic. Requires bz.
+/datum/gas_reaction/nitrium_formation //The formation of nitrium. Endothermic. Requires bz.
 	priority_group = PRIORITY_FORMATION
-	name = "Nitryl formation"
-	id = "nitrylformation"
+	name = "Nitrium formation"
+	id = "nitrium_formation"
 
-/datum/gas_reaction/nitrylformation/init_reqs()
+/datum/gas_reaction/nitrium_formation/init_reqs()
 	requirements = list(
-		/datum/gas/oxygen = 10,
+		/datum/gas/tritium = 20,
 		/datum/gas/nitrogen = 10,
 		/datum/gas/bz = 5,
-		"MIN_TEMP" = 1500,
-		"MAX_TEMP" = 10000
+		"MIN_TEMP" = 1500
 	)
 
-/datum/gas_reaction/nitrylformation/react(datum/gas_mixture/air)
+/datum/gas_reaction/nitrium_formation/react(datum/gas_mixture/air)
 	var/list/cached_gases = air.gases
 	var/temperature = air.temperature
 
 	var/old_heat_capacity = air.heat_capacity()
-	var/heat_efficency = min(temperature / (FIRE_MINIMUM_TEMPERATURE_TO_EXIST * 8), cached_gases[/datum/gas/oxygen][MOLES], cached_gases[/datum/gas/nitrogen][MOLES], cached_gases[/datum/gas/bz][MOLES] * INVERSE(0.05))
-	var/energy_used = heat_efficency * NITRYL_FORMATION_ENERGY
-	ASSERT_GAS(/datum/gas/nitryl, air)
-	if ((cached_gases[/datum/gas/oxygen][MOLES] - heat_efficency < 0 ) || (cached_gases[/datum/gas/nitrogen][MOLES] - heat_efficency < 0) || (cached_gases[/datum/gas/bz][MOLES] - heat_efficency * 0.05 < 0)) //Shouldn't produce gas from nothing.
+	var/heat_efficency = min(temperature / (FIRE_MINIMUM_TEMPERATURE_TO_EXIST * 8), cached_gases[/datum/gas/tritium][MOLES], cached_gases[/datum/gas/nitrogen][MOLES], cached_gases[/datum/gas/bz][MOLES] * INVERSE(0.05))
+	var/energy_used = heat_efficency * NITRIUM_FORMATION_ENERGY
+	ASSERT_GAS(/datum/gas/nitrium, air)
+	if ((cached_gases[/datum/gas/tritium][MOLES] - heat_efficency < 0 ) || (cached_gases[/datum/gas/nitrogen][MOLES] - heat_efficency < 0) || (cached_gases[/datum/gas/bz][MOLES] - heat_efficency * 0.05 < 0)) //Shouldn't produce gas from nothing.
 		return NO_REACTION
 
-	ASSERT_GAS(/datum/gas/nitryl, air)
-	cached_gases[/datum/gas/oxygen][MOLES] -= heat_efficency
+	cached_gases[/datum/gas/tritium][MOLES] -= heat_efficency
 	cached_gases[/datum/gas/nitrogen][MOLES] -= heat_efficency
-	cached_gases[/datum/gas/bz][MOLES] -= heat_efficency * 0.05 //bz gets consumed to balance the nitryl production and not make it too common and/or easy
-	cached_gases[/datum/gas/nitryl][MOLES] += heat_efficency
+	cached_gases[/datum/gas/bz][MOLES] -= heat_efficency * 0.05 //bz gets consumed to balance the nitrium production and not make it too common and/or easy
+	cached_gases[/datum/gas/nitrium][MOLES] += heat_efficency
 
 	if(energy_used > 0)
 		var/new_heat_capacity = air.heat_capacity()
@@ -542,38 +541,6 @@
 			air.temperature = max(((temperature * old_heat_capacity - energy_used)/new_heat_capacity), TCMB)
 		return REACTING
 
-/datum/gas_reaction/stimformation //Stimulum formation follows a strange pattern of how effective it will be at a given temperature, having some multiple peaks and some large dropoffs. Exo and endo thermic.
-	priority_group = PRIORITY_FORMATION
-	name = "Stimulum formation"
-	id = "stimformation"
-
-/datum/gas_reaction/stimformation/init_reqs()
-	requirements = list(
-		/datum/gas/tritium = 30,
-		/datum/gas/bz = 20,
-		/datum/gas/nitryl = 30,
-		/datum/gas/plasma = MINIMUM_MOLE_COUNT,
-		"MIN_TEMP" = 1500)
-
-/datum/gas_reaction/stimformation/react(datum/gas_mixture/air)
-	var/list/cached_gases = air.gases
-
-	var/old_heat_capacity = air.heat_capacity()
-	var/heat_scale = min(air.temperature/STIMULUM_HEAT_SCALE, cached_gases[/datum/gas/tritium][MOLES], cached_gases[/datum/gas/plasma][MOLES], cached_gases[/datum/gas/nitryl][MOLES])
-	var/stim_energy_change = heat_scale + STIMULUM_FIRST_RISE * (heat_scale ** 2) - STIMULUM_FIRST_DROP * (heat_scale ** 3) + STIMULUM_SECOND_RISE * (heat_scale ** 4) - STIMULUM_ABSOLUTE_DROP * (heat_scale ** 5)
-	ASSERT_GAS(/datum/gas/stimulum, air)
-	if ((cached_gases[/datum/gas/tritium][MOLES] - heat_scale < 0 ) || (cached_gases[/datum/gas/nitryl][MOLES] - heat_scale < 0)) //Shouldn't produce gas from nothing.
-		return NO_REACTION
-	cached_gases[/datum/gas/tritium][MOLES] -= heat_scale
-	cached_gases[/datum/gas/nitryl][MOLES] -= heat_scale
-	cached_gases[/datum/gas/stimulum][MOLES] += heat_scale * 0.75
-
-	if(stim_energy_change)
-		var/new_heat_capacity = air.heat_capacity()
-		if(new_heat_capacity > MINIMUM_HEAT_CAPACITY)
-			air.temperature = max(((air.temperature * old_heat_capacity + stim_energy_change) / new_heat_capacity), TCMB)
-		return REACTING
-
 /datum/gas_reaction/nobliumformation //Hyper-Noblium formation is extrememly endothermic, but requires high temperatures to start. Due to its high mass, hyper-nobelium uses large amounts of nitrogen and tritium. BZ can be used as a catalyst to make it less endothermic.
 	priority_group = PRIORITY_FORMATION
 	name = "Hyper-Noblium condensation"
@@ -739,7 +706,7 @@
 /datum/gas_reaction/zauker_formation/init_reqs()
 	requirements = list(
 		/datum/gas/hypernoblium = MINIMUM_MOLE_COUNT,
-		/datum/gas/stimulum = MINIMUM_MOLE_COUNT,
+		/datum/gas/nitrium = MINIMUM_MOLE_COUNT,
 		"MIN_TEMP" = 50000,
 		"MAX_TEMP" = 75000
 	)
@@ -748,13 +715,13 @@
 	var/list/cached_gases = air.gases
 	var/temperature = air.temperature
 	var/old_heat_capacity = air.heat_capacity()
-	var/heat_efficency = min(temperature * 0.000005, cached_gases[/datum/gas/hypernoblium][MOLES] * INVERSE(0.01), cached_gases[/datum/gas/stimulum][MOLES] * INVERSE(0.5))
+	var/heat_efficency = min(temperature * 0.000005, cached_gases[/datum/gas/hypernoblium][MOLES] * INVERSE(0.01), cached_gases[/datum/gas/nitrium][MOLES] * INVERSE(0.5))
 	var/energy_used = heat_efficency * 5000
 	ASSERT_GAS(/datum/gas/zauker, air)
-	if ((cached_gases[/datum/gas/hypernoblium][MOLES] - heat_efficency * 0.01 < 0 ) || (cached_gases[/datum/gas/stimulum][MOLES] - heat_efficency * 0.5 < 0)) //Shouldn't produce gas from nothing.
+	if ((cached_gases[/datum/gas/hypernoblium][MOLES] - heat_efficency * 0.01 < 0 ) || (cached_gases[/datum/gas/nitrium][MOLES] - heat_efficency * 0.5 < 0)) //Shouldn't produce gas from nothing.
 		return NO_REACTION
 	cached_gases[/datum/gas/hypernoblium][MOLES] -= heat_efficency * 0.01
-	cached_gases[/datum/gas/stimulum][MOLES] -= heat_efficency * 0.5
+	cached_gases[/datum/gas/nitrium][MOLES] -= heat_efficency * 0.5
 	cached_gases[/datum/gas/zauker][MOLES] += heat_efficency * 0.5
 
 	if(energy_used)
diff --git a/code/modules/atmospherics/machinery/airalarm.dm b/code/modules/atmospherics/machinery/airalarm.dm
index 2931d0a9593..971995b352c 100644
--- a/code/modules/atmospherics/machinery/airalarm.dm
+++ b/code/modules/atmospherics/machinery/airalarm.dm
@@ -107,8 +107,7 @@
 		/datum/gas/hypernoblium = new/datum/tlv(-1, -1, 1000, 1000), // Hyper-Noblium is inert and nontoxic
 		/datum/gas/water_vapor = new/datum/tlv/dangerous,
 		/datum/gas/tritium = new/datum/tlv/dangerous,
-		/datum/gas/stimulum = new/datum/tlv/dangerous,
-		/datum/gas/nitryl = new/datum/tlv/dangerous,
+		/datum/gas/nitrium = new/datum/tlv/dangerous,
 		/datum/gas/pluoxium = new/datum/tlv(-1, -1, 1000, 1000), // Unlike oxygen, pluoxium does not fuel plasma/tritium fires
 		/datum/gas/freon = new/datum/tlv/dangerous,
 		/datum/gas/hydrogen = new/datum/tlv/dangerous,
@@ -454,10 +453,9 @@
 						/datum/gas/water_vapor,
 						/datum/gas/hypernoblium,
 						/datum/gas/nitrous_oxide,
-						/datum/gas/nitryl,
+						/datum/gas/nitrium,
 						/datum/gas/tritium,
 						/datum/gas/bz,
-						/datum/gas/stimulum,
 						/datum/gas/pluoxium,
 						/datum/gas/freon,
 						/datum/gas/hydrogen,
@@ -817,8 +815,7 @@
 		/datum/gas/hypernoblium = new/datum/tlv/no_checks,
 		/datum/gas/water_vapor = new/datum/tlv/no_checks,
 		/datum/gas/tritium = new/datum/tlv/no_checks,
-		/datum/gas/stimulum = new/datum/tlv/no_checks,
-		/datum/gas/nitryl = new/datum/tlv/no_checks,
+		/datum/gas/nitrium = new/datum/tlv/no_checks,
 		/datum/gas/pluoxium = new/datum/tlv/no_checks,
 		/datum/gas/freon = new/datum/tlv/no_checks,
 		/datum/gas/hydrogen = new/datum/tlv/no_checks,
@@ -844,8 +841,7 @@
 		/datum/gas/hypernoblium = new/datum/tlv(-1, -1, 1000, 1000), // Hyper-Noblium is inert and nontoxic
 		/datum/gas/water_vapor = new/datum/tlv/dangerous,
 		/datum/gas/tritium = new/datum/tlv/dangerous,
-		/datum/gas/stimulum = new/datum/tlv/dangerous,
-		/datum/gas/nitryl = new/datum/tlv/dangerous,
+		/datum/gas/nitrium = new/datum/tlv/dangerous,
 		/datum/gas/pluoxium = new/datum/tlv(-1, -1, 1000, 1000), // Unlike oxygen, pluoxium does not fuel plasma/tritium fires
 		/datum/gas/freon = new/datum/tlv/dangerous,
 		/datum/gas/hydrogen = new/datum/tlv/dangerous,
diff --git a/code/modules/atmospherics/machinery/components/fusion/hfr_fuel_datums.dm b/code/modules/atmospherics/machinery/components/fusion/hfr_fuel_datums.dm
index 33eb2ab5838..c7a9545a7d2 100644
--- a/code/modules/atmospherics/machinery/components/fusion/hfr_fuel_datums.dm
+++ b/code/modules/atmospherics/machinery/components/fusion/hfr_fuel_datums.dm
@@ -136,5 +136,5 @@ GLOBAL_LIST_INIT(hfr_fuels_list, hfr_fuels_create_list())
 	temperature_change_multiplier = 1
 	requirements = list(/datum/gas/hypernoblium, /datum/gas/antinoblium)
 	primary_products = list(/datum/gas/helium)
-	secondary_products = list(/datum/gas/plasma, /datum/gas/oxygen, /datum/gas/nitrogen, /datum/gas/proto_nitrate, /datum/gas/stimulum, /datum/gas/miasma)
+	secondary_products = list(/datum/gas/plasma, /datum/gas/oxygen, /datum/gas/nitrogen, /datum/gas/proto_nitrate, /datum/gas/nitrium, /datum/gas/miasma)
 	meltdown_flags = HYPERTORUS_FLAG_DEVASTATING_EXPLOSION | HYPERTORUS_FLAG_RADIATION_PULSE | HYPERTORUS_FLAG_EMP | HYPERTORUS_FLAG_MASSIVE_SPREAD | HYPERTORUS_FLAG_CRITICAL_MELTDOWN
diff --git a/code/modules/atmospherics/machinery/components/fusion/hfr_main_processes.dm b/code/modules/atmospherics/machinery/components/fusion/hfr_main_processes.dm
index 04de52b589e..6c7551e0c35 100644
--- a/code/modules/atmospherics/machinery/components/fusion/hfr_main_processes.dm
+++ b/code/modules/atmospherics/machinery/components/fusion/hfr_main_processes.dm
@@ -129,13 +129,13 @@
 	// Gases that decrease the amount of energy
 	energy_modifiers -= scaled_moderator_list[/datum/gas/hypernoblium] * 10 + \
 								scaled_moderator_list[/datum/gas/water_vapor] * 0.75 + \
-								scaled_moderator_list[/datum/gas/nitryl] * 0.15 + \
+								scaled_moderator_list[/datum/gas/nitrium] * 0.15 + \
 								scaled_moderator_list[/datum/gas/healium] * 0.45 + \
 								scaled_moderator_list[/datum/gas/freon] * 1.15
 	///Between 0.25 and 100, this value is used to modify the behaviour of the internal energy and the core temperature based on the gases present in the mix
 	var/power_modifier = scaled_moderator_list[/datum/gas/oxygen] * 0.55 + \
 								scaled_moderator_list[/datum/gas/carbon_dioxide] * 0.95 + \
-								scaled_moderator_list[/datum/gas/nitryl] * 1.45 + \
+								scaled_moderator_list[/datum/gas/nitrium] * 1.45 + \
 								scaled_moderator_list[/datum/gas/zauker] * 5.55 + \
 								scaled_moderator_list[/datum/gas/plasma] * 0.05 - \
 								scaled_moderator_list[/datum/gas/nitrous_oxide] * 0.05 - \
@@ -301,21 +301,21 @@
 			if(moderator_list[/datum/gas/proto_nitrate] > 20)
 				radiation *= 1.55
 				heat_output *= 1.025
-				internal_output.assert_gases(/datum/gas/stimulum)
-				internal_output.gases[/datum/gas/stimulum][MOLES] += scaled_production * 1.05
+				internal_output.assert_gases(/datum/gas/nitrium)
+				internal_output.gases[/datum/gas/nitrium][MOLES] += scaled_production * 1.05
 				moderator_internal.gases[/datum/gas/proto_nitrate][MOLES] -= min(moderator_internal.gases[/datum/gas/proto_nitrate][MOLES], scaled_production * 1.35)
 		if(3, 4)
 			if(moderator_list[/datum/gas/plasma] > 10)
-				internal_output.assert_gases(/datum/gas/freon, /datum/gas/stimulum)
+				internal_output.assert_gases(/datum/gas/freon, /datum/gas/nitrium)
 				internal_output.gases[/datum/gas/freon][MOLES] += scaled_production * 0.15
-				internal_output.gases[/datum/gas/stimulum][MOLES] += scaled_production * 1.05
+				internal_output.gases[/datum/gas/nitrium][MOLES] += scaled_production * 1.05
 				moderator_internal.gases[/datum/gas/plasma][MOLES] -= min(moderator_internal.gases[/datum/gas/plasma][MOLES], scaled_production * 0.45)
 			if(moderator_list[/datum/gas/freon] > 50)
 				heat_output *= 0.9
 				radiation *= 0.8
 			if(moderator_list[/datum/gas/proto_nitrate]> 15)
-				internal_output.assert_gases(/datum/gas/stimulum, /datum/gas/halon)
-				internal_output.gases[/datum/gas/stimulum][MOLES] += scaled_production * 1.25
+				internal_output.assert_gases(/datum/gas/nitrium, /datum/gas/halon)
+				internal_output.gases[/datum/gas/nitrium][MOLES] += scaled_production * 1.25
 				internal_output.gases[/datum/gas/halon][MOLES] += scaled_production * 1.15
 				moderator_internal.gases[/datum/gas/proto_nitrate][MOLES] -= min(moderator_internal.gases[/datum/gas/proto_nitrate][MOLES], scaled_production * 1.55)
 				radiation *= 1.95
@@ -334,8 +334,8 @@
 				heat_output *= 0.5
 				radiation *= 0.2
 			if(moderator_list[/datum/gas/proto_nitrate] > 50)
-				internal_output.assert_gases(/datum/gas/stimulum, /datum/gas/pluoxium)
-				internal_output.gases[/datum/gas/stimulum][MOLES] += scaled_production * 1.95
+				internal_output.assert_gases(/datum/gas/nitrium, /datum/gas/pluoxium)
+				internal_output.gases[/datum/gas/nitrium][MOLES] += scaled_production * 1.95
 				internal_output.gases[/datum/gas/pluoxium][MOLES] += scaled_production
 				moderator_internal.gases[/datum/gas/proto_nitrate][MOLES] -= min(moderator_internal.gases[/datum/gas/proto_nitrate][MOLES], scaled_production * 1.35)
 				radiation *= 1.95
@@ -357,9 +357,9 @@
 				moderator_internal.gases[/datum/gas/bz][MOLES] += scaled_production * 1.15
 				moderator_internal.gases[/datum/gas/plasma][MOLES] -= min(moderator_internal.gases[/datum/gas/plasma][MOLES], scaled_production * 1.45)
 			if(moderator_list[/datum/gas/proto_nitrate])
-				internal_output.assert_gases(/datum/gas/zauker, /datum/gas/stimulum)
+				internal_output.assert_gases(/datum/gas/zauker, /datum/gas/nitrium)
 				internal_output.gases[/datum/gas/zauker][MOLES] += scaled_production * 5.35
-				internal_output.gases[/datum/gas/stimulum][MOLES] += scaled_production * 2.15
+				internal_output.gases[/datum/gas/nitrium][MOLES] += scaled_production * 2.15
 				moderator_internal.gases[/datum/gas/proto_nitrate][MOLES] -= min(moderator_internal.gases[/datum/gas/proto_nitrate][MOLES], scaled_production * 3.35)
 				radiation *= 2
 				heat_output *= 2.25
diff --git a/code/modules/atmospherics/machinery/components/gas_recipe_machines/atmos_machines_recipes.dm b/code/modules/atmospherics/machinery/components/gas_recipe_machines/atmos_machines_recipes.dm
index 1397b71c554..ac187433fed 100644
--- a/code/modules/atmospherics/machinery/components/gas_recipe_machines/atmos_machines_recipes.dm
+++ b/code/modules/atmospherics/machinery/components/gas_recipe_machines/atmos_machines_recipes.dm
@@ -180,7 +180,7 @@ GLOBAL_LIST_INIT(gas_recipe_meta, gas_recipes_list())
 	name = "exotic fuel pellet"
 	reaction_type = ENDOTHERMIC_REACTION
 	energy_release = 6000000
-	requirements = list(/datum/gas/hypernoblium = 100, /datum/gas/stimulum = 100)
+	requirements = list(/datum/gas/hypernoblium = 100, /datum/gas/nitrium = 100)
 	products = list(/obj/item/fuel_pellet/exotic = 1)
 
 /datum/gas_recipe/crystallizer/crystal_foam
@@ -190,3 +190,13 @@ GLOBAL_LIST_INIT(gas_recipe_meta, gas_recipes_list())
 	energy_release = 140000
 	requirements = list(/datum/gas/carbon_dioxide = 150, /datum/gas/nitrous_oxide = 100, /datum/gas/water_vapor = 25)
 	products = list(/obj/item/grenade/gas_crystal/crystal_foam = 1)
+
+/datum/gas_recipe/crystallizer/crystallized_nitrium
+	id = "crystallized_nitrium"
+	name = "Nitrium crystal"
+	min_temp = 10
+	max_temp = 25
+	reaction_type = ENDOTHERMIC_REACTION
+	energy_release = 45000
+	requirements = list(/datum/gas/nitrium = 150, /datum/gas/oxygen = 70, /datum/gas/bz = 50)
+	products = list(/obj/item/nitrium_crystal = 1)
diff --git a/code/modules/atmospherics/machinery/components/tank.dm b/code/modules/atmospherics/machinery/components/tank.dm
index 91a824ddadb..0f99a977625 100644
--- a/code/modules/atmospherics/machinery/components/tank.dm
+++ b/code/modules/atmospherics/machinery/components/tank.dm
@@ -404,8 +404,8 @@
 /obj/machinery/atmospherics/components/tank/miasma
 	gas_type = /datum/gas/miasma
 
-/obj/machinery/atmospherics/components/tank/nitryl
-	gas_type = /datum/gas/nitryl
+/obj/machinery/atmospherics/components/tank/nitrium
+	gas_type = /datum/gas/nitrium
 
 /obj/machinery/atmospherics/components/tank/pluoxium
 	gas_type = /datum/gas/pluoxium
@@ -413,9 +413,6 @@
 /obj/machinery/atmospherics/components/tank/proto_nitrate
 	gas_type = /datum/gas/proto_nitrate
 
-/obj/machinery/atmospherics/components/tank/stimulum
-	gas_type = /datum/gas/stimulum
-
 /obj/machinery/atmospherics/components/tank/tritium
 	gas_type = /datum/gas/tritium
 
diff --git a/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm b/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm
index edf452bd651..6f7af747d85 100644
--- a/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm
+++ b/code/modules/atmospherics/machinery/components/trinary_devices/filter.dm
@@ -267,17 +267,14 @@
 	name = "miasma filter"
 	filter_type = list(/datum/gas/miasma)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/no2
-	name = "nitryl filter"
-	filter_type = list(/datum/gas/nitryl)
+	name = "nitrium filter"
+	filter_type = list(/datum/gas/nitrium)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/pluoxium
 	name = "pluoxium filter"
 	filter_type = list(/datum/gas/pluoxium)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/proto_nitrate
 	name = "proto-nitrate filter"
 	filter_type = list(/datum/gas/proto_nitrate)
-/obj/machinery/atmospherics/components/trinary/filter/atmos/stimulum
-	name = "stimulum filter"
-	filter_type = list(/datum/gas/stimulum)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/tritium
 	name = "tritium filter"
 	filter_type = list(/datum/gas/tritium)
@@ -336,17 +333,14 @@
 	name = "miasma filter"
 	filter_type = list(/datum/gas/miasma)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/flipped/no2
-	name = "nitryl filter"
-	filter_type = list(/datum/gas/nitryl)
+	name = "nitrium filter"
+	filter_type = list(/datum/gas/nitrium)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/flipped/pluoxium
 	name = "pluoxium filter"
 	filter_type = list(/datum/gas/pluoxium)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/flipped/proto_nitrate
 	name = "proto-nitrate filter"
 	filter_type = list(/datum/gas/proto_nitrate)
-/obj/machinery/atmospherics/components/trinary/filter/atmos/flipped/stimulum
-	name = "stimulum filter"
-	filter_type = list(/datum/gas/stimulum)
 /obj/machinery/atmospherics/components/trinary/filter/atmos/flipped/tritium
 	name = "tritium filter"
 	filter_type = list(/datum/gas/tritium)
diff --git a/code/modules/atmospherics/machinery/components/unary_devices/outlet_injector.dm b/code/modules/atmospherics/machinery/components/unary_devices/outlet_injector.dm
index bb33d8ade6a..068de9ac27d 100644
--- a/code/modules/atmospherics/machinery/components/unary_devices/outlet_injector.dm
+++ b/code/modules/atmospherics/machinery/components/unary_devices/outlet_injector.dm
@@ -263,18 +263,15 @@
 /obj/machinery/atmospherics/components/unary/outlet_injector/atmos/miasma_input
 	name = "miasma tank input injector"
 	id = ATMOS_GAS_MONITOR_INPUT_MIASMA
-/obj/machinery/atmospherics/components/unary/outlet_injector/atmos/nitryl_input
-	name = "nitryl tank input injector"
-	id = ATMOS_GAS_MONITOR_INPUT_NO2
+/obj/machinery/atmospherics/components/unary/outlet_injector/atmos/nitrium_input
+	name = "nitrium tank input injector"
+	id = ATMOS_GAS_MONITOR_INPUT_NITRIUM
 /obj/machinery/atmospherics/components/unary/outlet_injector/atmos/pluoxium_input
 	name = "pluoxium tank input injector"
 	id = ATMOS_GAS_MONITOR_INPUT_PLUOXIUM
 /obj/machinery/atmospherics/components/unary/outlet_injector/atmos/proto_nitrate_input
 	name = "proto-nitrate tank input injector"
 	id = ATMOS_GAS_MONITOR_INPUT_PROTO_NITRATE
-/obj/machinery/atmospherics/components/unary/outlet_injector/atmos/stimulum_input
-	name = "stimulum tank input injector"
-	id = ATMOS_GAS_MONITOR_INPUT_STIMULUM
 /obj/machinery/atmospherics/components/unary/outlet_injector/atmos/tritium_input
 	name = "tritium tank input injector"
 	id = ATMOS_GAS_MONITOR_INPUT_TRITIUM
diff --git a/code/modules/atmospherics/machinery/components/unary_devices/vent_pump.dm b/code/modules/atmospherics/machinery/components/unary_devices/vent_pump.dm
index 05b7511f94d..9dc856a3ff2 100644
--- a/code/modules/atmospherics/machinery/components/unary_devices/vent_pump.dm
+++ b/code/modules/atmospherics/machinery/components/unary_devices/vent_pump.dm
@@ -411,18 +411,15 @@
 /obj/machinery/atmospherics/components/unary/vent_pump/siphon/atmos/miasma_output
 	name = "miasma tank output inlet"
 	id_tag = ATMOS_GAS_MONITOR_OUTPUT_MIASMA
-/obj/machinery/atmospherics/components/unary/vent_pump/siphon/atmos/nitryl_output
-	name = "nitryl tank output inlet"
-	id_tag = ATMOS_GAS_MONITOR_OUTPUT_NO2
+/obj/machinery/atmospherics/components/unary/vent_pump/siphon/atmos/nitrium_output
+	name = "nitrium tank output inlet"
+	id_tag = ATMOS_GAS_MONITOR_OUTPUT_NITRIUM
 /obj/machinery/atmospherics/components/unary/vent_pump/siphon/atmos/pluoxium_output
 	name = "pluoxium tank output inlet"
 	id_tag = ATMOS_GAS_MONITOR_OUTPUT_PLUOXIUM
 /obj/machinery/atmospherics/components/unary/vent_pump/siphon/atmos/proto_nitrate_output
 	name = "proto-nitrate tank output inlet"
 	id_tag = ATMOS_GAS_MONITOR_OUTPUT_PROTO_NITRATE
-/obj/machinery/atmospherics/components/unary/vent_pump/siphon/atmos/stimulum_output
-	name = "stimulum tank output inlet"
-	id_tag = ATMOS_GAS_MONITOR_OUTPUT_STIMULUM
 /obj/machinery/atmospherics/components/unary/vent_pump/siphon/atmos/tritium_output
 	name = "tritium tank output inlet"
 	id_tag = ATMOS_GAS_MONITOR_OUTPUT_TRITIUM
diff --git a/code/modules/atmospherics/machinery/other/miner.dm b/code/modules/atmospherics/machinery/other/miner.dm
index 74c72c16c17..457352b6ab8 100644
--- a/code/modules/atmospherics/machinery/other/miner.dm
+++ b/code/modules/atmospherics/machinery/other/miner.dm
@@ -209,10 +209,10 @@
 	overlay_color = "#395806"
 	spawn_id = /datum/gas/miasma
 
-/obj/machinery/atmospherics/miner/nitryl
-	name = "\improper Nitryl Gas Miner"
+/obj/machinery/atmospherics/miner/nitrium
+	name = "\improper Nitrium Gas Miner"
 	overlay_color = "#752b00"
-	spawn_id = /datum/gas/nitryl
+	spawn_id = /datum/gas/nitrium
 
 /obj/machinery/atmospherics/miner/pluoxium
 	name = "\improper Pluoxium Gas Miner"
@@ -224,11 +224,6 @@
 	overlay_color = "#00571d"
 	spawn_id = /datum/gas/proto_nitrate
 
-/obj/machinery/atmospherics/miner/stimulum
-	name = "\improper Stimulum Gas Miner"
-	overlay_color = "#d577dd"
-	spawn_id = /datum/gas/stimulum
-
 /obj/machinery/atmospherics/miner/tritium
 	name = "\improper Tritium Gas Miner"
 	overlay_color = "#15ff00"
diff --git a/code/modules/atmospherics/machinery/portable/canister.dm b/code/modules/atmospherics/machinery/portable/canister.dm
index 450b2983e7c..08ce9444607 100644
--- a/code/modules/atmospherics/machinery/portable/canister.dm
+++ b/code/modules/atmospherics/machinery/portable/canister.dm
@@ -15,13 +15,12 @@ GLOBAL_LIST_INIT(gas_id_to_canister, init_gas_id_to_canister())
 		"co2" = /obj/machinery/portable_atmospherics/canister/carbon_dioxide,
 		"plasma" = /obj/machinery/portable_atmospherics/canister/plasma,
 		"n2o" = /obj/machinery/portable_atmospherics/canister/nitrous_oxide,
-		"no2" = /obj/machinery/portable_atmospherics/canister/nitryl,
+		"nitrium" = /obj/machinery/portable_atmospherics/canister/nitrium,
 		"bz" = /obj/machinery/portable_atmospherics/canister/bz,
 		"air" = /obj/machinery/portable_atmospherics/canister/air,
 		"water_vapor" = /obj/machinery/portable_atmospherics/canister/water_vapor,
 		"tritium" = /obj/machinery/portable_atmospherics/canister/tritium,
 		"hyper-noblium" = /obj/machinery/portable_atmospherics/canister/nob,
-		"stimulum" = /obj/machinery/portable_atmospherics/canister/stimulum,
 		"pluoxium" = /obj/machinery/portable_atmospherics/canister/pluoxium,
 		"caution" = /obj/machinery/portable_atmospherics/canister,
 		"miasma" = /obj/machinery/portable_atmospherics/canister/miasma,
@@ -216,10 +215,10 @@ GLOBAL_LIST_INIT(gas_id_to_canister, init_gas_id_to_canister())
 	greyscale_config = /datum/greyscale_config/canister/double_stripe
 	greyscale_colors = "#c63e3b#f7d5d3"
 
-/obj/machinery/portable_atmospherics/canister/nitryl
-	name = "Nitryl canister"
-	desc = "Nitryl gas. Feels great 'til the acid eats your lungs."
-	gas_type = /datum/gas/nitryl
+/obj/machinery/portable_atmospherics/canister/nitrium
+	name = "Nitrium canister"
+	desc = "Nitrium gas. Feels great 'til the acid eats your lungs."
+	gas_type = /datum/gas/nitrium
 	greyscale_config = /datum/greyscale_config/canister
 	greyscale_colors = "#7b4732"
 
@@ -252,13 +251,6 @@ GLOBAL_LIST_INIT(gas_id_to_canister, init_gas_id_to_canister())
 	greyscale_config = /datum/greyscale_config/canister/double_stripe
 	greyscale_colors = "#008200#33cc33"
 
-/obj/machinery/portable_atmospherics/canister/stimulum
-	name = "Stimulum canister"
-	desc = "Stimulum. High energy gas, high energy people."
-	gas_type = /datum/gas/stimulum
-	greyscale_config = /datum/greyscale_config/canister
-	greyscale_colors = "#9b5d7f"
-
 /obj/machinery/portable_atmospherics/canister/plasma
 	name = "Plasma canister"
 	desc = "Plasma gas. The reason YOU are here. Highly toxic."
diff --git a/code/modules/atmospherics/machinery/portable/scrubber.dm b/code/modules/atmospherics/machinery/portable/scrubber.dm
index 41282bb26ed..629a8e20290 100644
--- a/code/modules/atmospherics/machinery/portable/scrubber.dm
+++ b/code/modules/atmospherics/machinery/portable/scrubber.dm
@@ -23,7 +23,7 @@
 		/datum/gas/carbon_dioxide,
 		/datum/gas/nitrous_oxide,
 		/datum/gas/bz,
-		/datum/gas/nitryl,
+		/datum/gas/nitrium,
 		/datum/gas/tritium,
 		/datum/gas/hypernoblium,
 		/datum/gas/water_vapor,
diff --git a/code/modules/cargo/bounties/engineering.dm b/code/modules/cargo/bounties/engineering.dm
index da3c8650618..748b63163cb 100644
--- a/code/modules/cargo/bounties/engineering.dm
+++ b/code/modules/cargo/bounties/engineering.dm
@@ -15,10 +15,10 @@
 		return FALSE
 	return our_mix.gases[gas_type][MOLES] >= moles_required
 
-/datum/bounty/item/engineering/gas/nitryl_tank
-	name = "Full Tank of Nitryl"
-	description = "The non-human staff of Station 88 has been volunteered to test performance enhancing drugs. Ship them a tank full of Nitryl so they can get started. (20 Moles)"
-	gas_type = /datum/gas/nitryl
+/datum/bounty/item/engineering/gas/nitrium_tank
+	name = "Full Tank of Nitrium"
+	description = "The non-human staff of Station 88 has been volunteered to test performance enhancing drugs. Ship them a tank full of Nitrium so they can get started. (20 Moles)"
+	gas_type = /datum/gas/nitrium
 
 /datum/bounty/item/engineering/gas/freon_tank
 	name = "Full Tank of Freon"
diff --git a/code/modules/cargo/exports/large_objects.dm b/code/modules/cargo/exports/large_objects.dm
index f70e18d6f4d..422082a060f 100644
--- a/code/modules/cargo/exports/large_objects.dm
+++ b/code/modules/cargo/exports/large_objects.dm
@@ -109,7 +109,7 @@
 	var/canister_gas = canister_mix.gases
 	var/list/gases_to_check = list(
 								/datum/gas/bz,
-								/datum/gas/stimulum,
+								/datum/gas/nitrium,
 								/datum/gas/hypernoblium,
 								/datum/gas/miasma,
 								/datum/gas/tritium,
diff --git a/code/modules/clothing/masks/gas_filter.dm b/code/modules/clothing/masks/gas_filter.dm
index 70232b61914..09dafd7e415 100644
--- a/code/modules/clothing/masks/gas_filter.dm
+++ b/code/modules/clothing/masks/gas_filter.dm
@@ -35,8 +35,7 @@
 		)
 	///List of gases with medium filter priority
 	var/list/mid_filtering_gases = list(
-		/datum/gas/nitryl,
-		/datum/gas/stimulum,
+		/datum/gas/nitrium,
 		/datum/gas/freon,
 		/datum/gas/hypernoblium,
 		/datum/gas/bz
diff --git a/code/modules/mob/living/carbon/life.dm b/code/modules/mob/living/carbon/life.dm
index d1ec5282f7b..f5adc77221f 100644
--- a/code/modules/mob/living/carbon/life.dm
+++ b/code/modules/mob/living/carbon/life.dm
@@ -246,10 +246,13 @@
 		else if(bz_partialpressure > 0.01)
 			hallucination += 5
 
-	//NITRYL
-	if(breath_gases[/datum/gas/nitryl])
-		var/nitryl_partialpressure = (breath_gases[/datum/gas/nitryl][MOLES]/breath.total_moles())*breath_pressure
-		adjustFireLoss(nitryl_partialpressure/4)
+	//NITRIUM
+	if(breath_gases[/datum/gas/nitrium])
+		var/nitrium_partialpressure = (breath_gases[/datum/gas/nitrium][MOLES]/breath.total_moles())*breath_pressure
+		if(nitrium_partialpressure > 0.5)
+			adjustFireLoss(nitrium_partialpressure * 0.15)
+		if(nitrium_partialpressure > 5)
+			adjustToxLoss(nitrium_partialpressure * 0.05)
 
 	//FREON
 	if(breath_gases[/datum/gas/freon])
diff --git a/code/modules/movespeed/modifiers/reagent.dm b/code/modules/movespeed/modifiers/reagent.dm
index ac2f3cdd4c9..1d4898e662b 100644
--- a/code/modules/movespeed/modifiers/reagent.dm
+++ b/code/modules/movespeed/modifiers/reagent.dm
@@ -19,7 +19,7 @@
 /datum/movespeed_modifier/reagent/methamphetamine
 	multiplicative_slowdown = -0.65
 
-/datum/movespeed_modifier/reagent/nitryl
+/datum/movespeed_modifier/reagent/nitrium
 	multiplicative_slowdown = -0.65
 
 /datum/movespeed_modifier/reagent/cannabis
diff --git a/code/modules/reagents/chemistry/reagents/other_reagents.dm b/code/modules/reagents/chemistry/reagents/other_reagents.dm
index 5f4149113d2..3d6d9b1a086 100644
--- a/code/modules/reagents/chemistry/reagents/other_reagents.dm
+++ b/code/modules/reagents/chemistry/reagents/other_reagents.dm
@@ -1388,55 +1388,55 @@
 		M.set_confusion(min(M.get_confusion() + 2, 5))
 	..()
 
-/datum/reagent/stimulum
-	name = "Stimulum"
-	description = "An unstable experimental gas that greatly increases the energy of those that inhale it, while dealing increasing toxin damage over time."
+/datum/reagent/nitrium_high_metabolization
+	name = "Nitrosyl plasmide"
+	description = "A highly reactive byproduct that stops you from sleeping, while dealing increasing toxin damage over time."
 	reagent_state = GAS
-	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because stimulum/nitryl/freon/hypernoblium are handled through gas breathing, metabolism must be lower for breathcode to keep up
+	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because nitrium/freon/hypernoblium are handled through gas breathing, metabolism must be lower for breathcode to keep up
 	color = "E1A116"
 	taste_description = "sourness"
 	ph = 1.8
 	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
 	addiction_types = list(/datum/addiction/stimulants = 14)
 
-/datum/reagent/stimulum/on_mob_metabolize(mob/living/L)
-	..()
+/datum/reagent/nitrium_high_metabolization/on_mob_metabolize(mob/living/L)
+	. = ..()
 	ADD_TRAIT(L, TRAIT_STUNIMMUNE, type)
 	ADD_TRAIT(L, TRAIT_SLEEPIMMUNE, type)
 
-/datum/reagent/stimulum/on_mob_end_metabolize(mob/living/L)
+/datum/reagent/nitrium_high_metabolization/on_mob_end_metabolize(mob/living/L)
 	REMOVE_TRAIT(L, TRAIT_STUNIMMUNE, type)
 	REMOVE_TRAIT(L, TRAIT_SLEEPIMMUNE, type)
-	..()
+	return ..()
 
-/datum/reagent/stimulum/on_mob_life(mob/living/carbon/M, delta_time, times_fired)
+/datum/reagent/nitrium_high_metabolization/on_mob_life(mob/living/carbon/M, delta_time, times_fired)
 	M.adjustStaminaLoss(-2 * REM * delta_time, 0)
 	M.adjustToxLoss(0.1 * current_cycle * REM * delta_time, 0) // 1 toxin damage per cycle at cycle 10
-	..()
+	return ..()
 
-/datum/reagent/nitryl
-	name = "Nitryl"
+/datum/reagent/nitrium_low_metabolization
+	name = "Nitrium"
 	description = "A highly reactive gas that makes you feel faster."
 	reagent_state = GAS
-	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because stimulum/nitryl/freon/hypernoblium are handled through gas breathing, metabolism must be lower for breathcode to keep up
+	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because nitrium/freon/hypernoblium are handled through gas breathing, metabolism must be lower for breathcode to keep up
 	color = "90560B"
 	taste_description = "burning"
 	ph = 2
 	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
 
-/datum/reagent/nitryl/on_mob_metabolize(mob/living/L)
-	..()
-	L.add_movespeed_modifier(/datum/movespeed_modifier/reagent/nitryl)
+/datum/reagent/nitrium_low_metabolization/on_mob_metabolize(mob/living/L)
+	. = ..()
+	L.add_movespeed_modifier(/datum/movespeed_modifier/reagent/nitrium)
 
-/datum/reagent/nitryl/on_mob_end_metabolize(mob/living/L)
-	L.remove_movespeed_modifier(/datum/movespeed_modifier/reagent/nitryl)
-	..()
+/datum/reagent/nitrium_low_metabolization/on_mob_end_metabolize(mob/living/L)
+	L.remove_movespeed_modifier(/datum/movespeed_modifier/reagent/nitrium)
+	return ..()
 
 /datum/reagent/freon
 	name = "Freon"
 	description = "A powerful heat absorbent."
 	reagent_state = GAS
-	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because stimulum/nitryl/freon/hypernoblium are handled through gas breathing, metabolism must be lower for breathcode to keep up
+	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because nitrium/freon/hypernoblium are handled through gas breathing, metabolism must be lower for breathcode to keep up
 	color = "90560B"
 	taste_description = "burning"
 	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
@@ -1453,7 +1453,7 @@
 	name = "Hyper-Noblium"
 	description = "A suppressive gas that stops gas reactions on those who inhale it."
 	reagent_state = GAS
-	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because stimulum/nitryl/freon/hyper-nob are handled through gas breathing, metabolism must be lower for breathcode to keep up
+	metabolization_rate = REAGENTS_METABOLISM * 0.5 // Because nitrium/freon/hyper-nob are handled through gas breathing, metabolism must be lower for breathcode to keep up
 	color = "90560B"
 	taste_description = "searingly cold"
 	chemical_flags = REAGENT_CAN_BE_SYNTHESIZED|REAGENT_NO_RANDOM_RECIPE
diff --git a/code/modules/surgery/organs/lungs.dm b/code/modules/surgery/organs/lungs.dm
index 4533b4b4ce1..049bd168ea5 100644
--- a/code/modules/surgery/organs/lungs.dm
+++ b/code/modules/surgery/organs/lungs.dm
@@ -36,7 +36,7 @@
 	var/SA_sleep_min = 5 //Sleeping agent
 	var/BZ_trip_balls_min = 1 //BZ gas
 	var/BZ_brain_damage_min = 10 //Give people some room to play around without killing the station
-	var/gas_stimulation_min = 0.002 //Nitryl, Stimulum and Freon
+	var/gas_stimulation_min = 0.002 //nitrium and Freon
 	///Minimum amount of healium to make you unconscious for 4 seconds
 	var/healium_para_min = 3
 	///Minimum amount of healium to knock you down for good
@@ -303,18 +303,20 @@
 
 		breath_gases[/datum/gas/tritium][MOLES] -= gas_breathed
 
-	// Nitryl
-		var/nitryl_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/nitryl][MOLES])
-		if (prob(nitryl_pp))
-			breather.emote("burp")
-		if (prob(nitryl_pp) && nitryl_pp>10)
-			breather.adjustOrganLoss(ORGAN_SLOT_LUNGS, nitryl_pp/2)
-			to_chat(breather, span_notice("You feel a burning sensation in your chest"))
-		gas_breathed = breath_gases[/datum/gas/nitryl][MOLES]
-		if (gas_breathed > gas_stimulation_min)
-			breather.reagents.add_reagent(/datum/reagent/nitryl,1)
+	// Nitrium
+		var/nitrium_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/nitrium][MOLES])
+		if (prob(nitrium_pp) && nitrium_pp > 15)
+			breather.adjustOrganLoss(ORGAN_SLOT_LUNGS, nitrium_pp * 0.1)
+			to_chat(breather, "<span class='notice'>You feel a burning sensation in your chest</span>")
+		gas_breathed = breath_gases[/datum/gas/nitrium][MOLES]
+		if (nitrium_pp > 5)
+			var/existing = breather.reagents.get_reagent_amount(/datum/reagent/nitrium_low_metabolization)
+			breather.reagents.add_reagent(/datum/reagent/nitrium_low_metabolization, max(0, 2 - existing))
+		if (nitrium_pp > 10)
+			var/existing = breather.reagents.get_reagent_amount(/datum/reagent/nitrium_high_metabolization)
+			breather.reagents.add_reagent(/datum/reagent/nitrium_high_metabolization, max(0, 1 - existing))
 
-		breath_gases[/datum/gas/nitryl][MOLES]-=gas_breathed
+		breath_gases[/datum/gas/nitrium][MOLES] -= gas_breathed
 
 	// Freon
 		var/freon_pp = breath.get_breath_partial_pressure(breath_gases[/datum/gas/freon][MOLES])
@@ -373,13 +375,6 @@
 		gas_breathed = breath_gases[/datum/gas/halon][MOLES]
 		breath_gases[/datum/gas/halon][MOLES]-=gas_breathed
 
-	// Stimulum
-		gas_breathed = breath_gases[/datum/gas/stimulum][MOLES]
-		if (gas_breathed > gas_stimulation_min)
-			var/existing = breather.reagents.get_reagent_amount(/datum/reagent/stimulum)
-			breather.reagents.add_reagent(/datum/reagent/stimulum,max(0, 1 - existing))
-		breath_gases[/datum/gas/stimulum][MOLES]-=gas_breathed
-
 	// Hyper-Nob
 		gas_breathed = breath_gases[/datum/gas/hypernoblium][MOLES]
 		if (gas_breathed > gas_stimulation_min)
diff --git a/icons/effects/atmospherics.dmi b/icons/effects/atmospherics.dmi
index e2f451ca068..838fe5e3f6d 100644
Binary files a/icons/effects/atmospherics.dmi and b/icons/effects/atmospherics.dmi differ
diff --git a/icons/obj/atmos.dmi b/icons/obj/atmos.dmi
index ec462c41729..8859441898c 100644
Binary files a/icons/obj/atmos.dmi and b/icons/obj/atmos.dmi differ
diff --git a/tgstation.dme b/tgstation.dme
index b151de9ea9a..62f80c0b60a 100644
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -1303,6 +1303,7 @@
 #include "code\game\objects\items\maintenance_loot.dm"
 #include "code\game\objects\items\manuals.dm"
 #include "code\game\objects\items\mop.dm"
+#include "code\game\objects\items\nitrium_crystals.dm"
 #include "code\game\objects\items\paint.dm"
 #include "code\game\objects\items\paiwire.dm"
 #include "code\game\objects\items\pet_carrier.dm"
diff --git a/tgui/packages/tgui/constants.js b/tgui/packages/tgui/constants.js
index a295d539374..495c04d8a0e 100644
--- a/tgui/packages/tgui/constants.js
+++ b/tgui/packages/tgui/constants.js
@@ -183,8 +183,8 @@ const GASES = [
   },
   {
     'id': 'no2',
-    'name': 'Nitryl',
-    'label': 'NO₂',
+    'name': 'Nitrium',
+    'label': 'Nitrium',
     'color': 'brown',
   },
   {
@@ -199,12 +199,6 @@ const GASES = [
     'label': 'BZ',
     'color': 'mediumpurple',
   },
-  {
-    'id': 'stim',
-    'name': 'Stimulum',
-    'label': 'Stimulum',
-    'color': 'darkviolet',
-  },
   {
     'id': 'pluox',
     'name': 'Pluoxium',