GAS: Giant Armored Serpentids (Snake Bugs) (#5139)

## About The Pull Request **The majority of the work was done by Ozzo in #1471.** GAS are snake bugs hailing from Baystation 12. - They hate the heat, but are durable against low-pressure environments and the cold. - They cannot wear suits and most clothes, but have built in armor (it's in their name). - It is harder to grab GAS. - They are taller than the average spaceman. https://github.com/user-attachments/assets/f9ac1078-0d41-4a26-850f-26a2cd7bbf01 They currently have no lore or species description, but plans are in the works for both to be made. ## Why It's Good For The Game It's a new species that was well-recieved when it was tested the first time around, before being lost due to a lack of work on it. I am here to continue work on it and add new features to it if they are requested by the person that wanted them. ## Proof Of Testing It compiled and ran, hence me being able to take the video. There were no runtimes. I attached an image of a stylish GAS as further proof of testing. <details> <summary>Screenshots/Videos</summary> <img width="137" height="111" alt="image" src="https://github.com/user-attachments/assets/4b2ddd78-9312-4f0e-bbac-37bd51290490" /> </details> ## Changelog 🆑 add: Added a new species: Giant Armored Serpentids (GAS)! /🆑
2026-08-22 12:41:09 +01:00 · 2026-02-26 17:31:43 +01:00
parent c02a3edd37
commit e458eaee4a
43 changed files with 612 additions and 0 deletions
@@ -138,6 +138,7 @@
 #define SPECIES_HEMOPHAGE "hemophage"
 #define SPECIES_FELINE_PRIMITIVE "primitive_felinid"
 #define SPECIES_PROTEAN "protean"
+#define SPECIES_GAS "serpentid"

 #define SPECIES_MUTANT "mutant"
 #define SPECIES_MUTANT_INFECTIOUS "infectious_mutant"
@@ -0,0 +1,11 @@
+#define SERPENTID_ACCESSORIES_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/accessories.dmi'
+#define SERPENTID_BACK_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/back.dmi'
+#define SERPENTID_BELT_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/belt.dmi'
+#define SERPENTID_EYES_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/eyes.dmi'
+#define SERPENTID_HANDS_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/hands.dmi'
+#define SERPENTID_HEAD_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/head.dmi'
+#define SERPENTID_MASK_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/mask.dmi'
+#define SERPENTID_NECK_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/neck.dmi'
+#define SERPENTID_SUIT_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/suit.dmi'
+#define SERPENTID_UNIFORM_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/uniform.dmi'
+#define SERPENTID_EARS_ICON 'modular_skyrat/master_files/icons/mob/clothing/species/serpentid/ears.dmi'
@@ -41,3 +41,5 @@
 #define	AI_HOLOGRAM_BEE "Bee"
 #define	AI_HOLOGRAM_REDPANDA "Red Panda"
 #define	AI_HOLOGRAM_FENNEC "Fennec"
+
+#define BODYPART_ICON_GAS 'modular_skyrat/modules/bodyparts/icons/serpentid_parts_greyscale.dmi'
@@ -22,6 +22,7 @@
 #define isprotean(A) (is_species(A, /datum/species/protean))
 #define iscursekin(A) (is_species(A, /datum/species/human/cursekin))
 #define islycan(A) (is_species(A, /datum/species/lycan))
+#define isgas(A) (is_species(A, /datum/species/gas))
 //Antags
 #define ishorrorling(A) (istype(A, /mob/living/simple_animal/hostile/true_changeling))
 #define iscorticalborer(A) (istype(A, /mob/living/basic/cortical_borer))
@@ -425,6 +425,7 @@ ROUNDSTART_RACES lesser_abductor
 ROUNDSTART_RACES zombie
 ROUNDSTART_RACES protean
 ROUNDSTART_RACES cursekin
+ROUNDSTART_RACES serpentid

 ##-------------------------------------------------------------------------------------------

@@ -1502,6 +1502,41 @@ TREK
 	name = "Teshari Hardsuit"
 	json_config = 'modular_skyrat/modules/GAGS/json_configs/teshari_fallbacks/hardsuit.json'

+/**
+ * Serpentid fallbacks.
+ * In case what we have another species with specials Json config file. We use this for our case.
+ * Check teshari fasllbacks .json config files for more datails.
+ */
+
+/datum/greyscale_config/serpentid
+	name = "Serpentid clothing"
+	icon_file = 'modular_skyrat/modules/GAGS/icons/serpentid_fallbacks.dmi'
+	json_config = 'modular_skyrat/modules/GAGS/json_configs/serpentid_fallbacks/uniform.json'
+
+/datum/greyscale_config/serpentid/cloak
+	name = "Serpentid Poncho"
+	json_config = 'modular_skyrat/modules/GAGS/json_configs/serpentid_fallbacks/neck.json'
+
+/datum/greyscale_config/serpentid/tie
+	name = "Serpentid Tie"
+	json_config = 'modular_skyrat/modules/GAGS/json_configs/serpentid_fallbacks/neck.json'
+
+/datum/greyscale_config/serpentid/scarf
+	name = "Serpentid Scarf"
+	json_config = 'modular_skyrat/modules/GAGS/json_configs/serpentid_fallbacks/neck.json'
+
+/datum/greyscale_config/serpentid/gloves
+	name = "Serpentid Gloves"
+	json_config = 'modular_skyrat/modules/GAGS/json_configs/serpentid_fallbacks/gloves.json'
+
+/datum/greyscale_config/serpentid/eyes
+	name = "Serpentid Eyes"
+	json_config = 'modular_skyrat/modules/GAGS/json_configs/serpentid_fallbacks/eyes.json'
+
+/datum/greyscale_config/serpentid/belt
+	name = "Serpentid Belt"
+	json_config = 'modular_skyrat/modules/GAGS/json_configs/serpentid_fallbacks/belt.json'
+
 /*
 *	CIN SURPLUS ARMOR
 */
@@ -0,0 +1,10 @@
+{
+	"": [
+		{
+			"type": "icon_state",
+			"icon_state": "belt",
+			"blend_mode": "overlay",
+			"color_ids": [ 1 ]
+		}
+	]
+}
@@ -0,0 +1,10 @@
+{
+	"": [
+		{
+			"type": "icon_state",
+			"icon_state": "eyes",
+			"blend_mode": "overlay",
+			"color_ids": [ 1 ]
+		}
+	]
+}
@@ -0,0 +1,10 @@
+{
+	"": [
+		{
+			"type": "icon_state",
+			"icon_state": "gloves",
+			"blend_mode": "overlay",
+			"color_ids": [ 1 ]
+		}
+	]
+}
@@ -0,0 +1,10 @@
+{
+	"": [
+		{
+			"type": "icon_state",
+			"icon_state": "poncho",
+			"blend_mode": "overlay",
+			"color_ids": [ 1 ]
+		}
+	]
+}
@@ -0,0 +1,10 @@
+{
+	"": [
+		{
+			"type": "icon_state",
+			"icon_state": "uniform",
+			"blend_mode": "overlay",
+			"color_ids": [ 1 ]
+		}
+	]
+}
@@ -0,0 +1,97 @@
+#define GAS_PUNCH_LOW 3 // Humanoid pair of hands is extremely weak and deals reduced damage.
+#define GAS_PUNCH_HIGH 5
+//GAS
+
+/obj/item/bodypart/head/mutant/serpentid
+	icon_greyscale = BODYPART_ICON_GAS
+	bodytype = BODYTYPE_ORGANIC
+	limb_id = SPECIES_GAS
+	bodyshape = parent_type::bodyshape | BODYSHAPE_CUSTOM
+	head_flags = HEAD_EYESPRITES|HEAD_EYECOLOR|HEAD_EYEHOLES|HEAD_DEBRAIN
+
+/obj/item/bodypart/head/mutant/serpentid/Initialize(mapload)
+	worn_ears_offset = new(
+		attached_part = src,
+		feature_key = OFFSET_EARS,
+		offset_y = list("north" = 9, "south" = 9, "east" = 9, "west" = 9),
+	)
+	worn_head_offset = new(
+		attached_part = src,
+		feature_key = OFFSET_HEAD,
+		offset_y = list("north" = 8, "south" = 8, "east" = 8, "west" = 8),
+	)
+	worn_mask_offset = new(
+		attached_part = src,
+		feature_key = OFFSET_FACEMASK,
+		offset_y = list("north" = 7, "south" = 7, "east" = 7, "west" = 7),
+	)
+	return ..()
+
+
+/obj/item/bodypart/chest/mutant/serpentid
+	icon_greyscale = BODYPART_ICON_GAS
+	bodytype = BODYTYPE_ORGANIC
+	bodyshape = parent_type::bodyshape | BODYSHAPE_CUSTOM
+	limb_id = SPECIES_GAS
+
+/obj/item/bodypart/chest/mutant/serpentid/Initialize(mapload)
+	worn_back_offset = new(
+		attached_part = src,
+		feature_key = OFFSET_BACK,
+		offset_y = list("north" = 5, "south" = 5, "east" = 5, "west" = 5),
+	)
+	worn_accessory_offset = new(
+		attached_part = src,
+		feature_key = OFFSET_ACCESSORY,
+		offset_y = list("north" = 5, "south" = 5, "east" = 5, "west" = 5),
+	)
+	return ..()
+
+
+/obj/item/bodypart/arm/left/mutant/serpentid
+	icon_greyscale = BODYPART_ICON_GAS
+	bodytype = BODYTYPE_ORGANIC
+	limb_id = SPECIES_GAS
+	bodyshape = parent_type::bodyshape | BODYSHAPE_CUSTOM
+	unarmed_damage_low = GAS_PUNCH_LOW
+	unarmed_damage_high = GAS_PUNCH_HIGH
+
+
+	brute_modifier = 0.8
+	burn_modifier = 1.4
+
+
+/obj/item/bodypart/arm/right/mutant/serpentid
+	icon_greyscale = BODYPART_ICON_GAS
+	bodytype = BODYTYPE_ORGANIC
+	limb_id = SPECIES_GAS
+	bodyshape = parent_type::bodyshape | BODYSHAPE_CUSTOM
+	unarmed_damage_low = GAS_PUNCH_LOW
+	unarmed_damage_high = GAS_PUNCH_HIGH
+
+	brute_modifier = 0.8
+	burn_modifier = 1.4
+
+
+/obj/item/bodypart/leg/left/mutant/serpentid
+	icon_greyscale = BODYPART_ICON_GAS
+	bodytype = BODYTYPE_ORGANIC
+	bodyshape = parent_type::bodyshape | BODYSHAPE_CUSTOM
+	limb_id = SPECIES_GAS
+
+	brute_modifier = 0.8
+	burn_modifier = 1.4
+
+
+/obj/item/bodypart/leg/right/mutant/serpentid
+	icon_greyscale = BODYPART_ICON_GAS
+	bodytype = BODYTYPE_ORGANIC
+	bodyshape = parent_type::bodyshape | BODYSHAPE_CUSTOM
+	limb_id = SPECIES_GAS
+	brute_modifier = 0.8
+	burn_modifier = 1.4
+
+
+
+#undef GAS_PUNCH_LOW
+#undef GAS_PUNCH_HIGH
@@ -71,6 +71,9 @@
 /mob/living/carbon/human/species/skrell
 	race = /datum/species/skrell

+/mob/living/carbon/human/species/serpentid
+	race = /datum/species/gas
+
 /mob/living/carbon/human/verb/toggle_undies()
 	set category = "IC"
 	set name = "Toggle underwear visibility"
@@ -0,0 +1,296 @@
+#define BASE_CLOTH_X_1 1
+#define BASE_CLOTH_Y_1 1
+
+#define SERPENTID_COLD_THRESHOLD_1 180
+#define SERPENTID_COLD_THRESHOLD_2 140
+#define SERPENTID_COLD_THRESHOLD_3 100
+
+#define SERPENTID_HEAT_THRESHOLD_1 300
+#define SERPENTID_HEAT_THRESHOLD_2 440
+#define SERPENTID_HEAT_THRESHOLD_3 600
+
+/datum/species/gas
+	name = "Giant Armored Serpentid"
+	id = SPECIES_GAS
+	eyes_icon = 'modular_skyrat/modules/organs/icons/serpentid_eyes.dmi'
+	can_augment = FALSE
+
+	inherent_traits = list(
+		TRAIT_ADVANCEDTOOLUSER,
+		TRAIT_CHUNKYFINGERS_IGNORE_BATON,
+		TRAIT_PUSHIMMUNE,
+		TRAIT_RESISTHIGHPRESSURE,
+		TRAIT_RESISTLOWPRESSURE,
+		TRAIT_MUTANT_COLORS,
+		TRAIT_NO_UNDERWEAR,
+		TRAIT_NO_SLIP_ALL,
+	)
+
+	no_equip_flags = ITEM_SLOT_FEET | ITEM_SLOT_OCLOTHING | ITEM_SLOT_SUITSTORE
+	inherent_biotypes = MOB_ORGANIC | MOB_HUMANOID
+	no_gender_shaping = TRUE
+	mutanttongue = /obj/item/organ/tongue/insect
+
+	always_customizable = FALSE
+	changesource_flags = MIRROR_BADMIN | WABBAJACK | MIRROR_MAGIC | MIRROR_PRIDE | ERT_SPAWN | RACE_SWAP | SLIME_EXTRACT
+	bodytemp_heat_damage_limit = (BODYTEMP_HEAT_DAMAGE_LIMIT - 10)
+	bodytemp_cold_damage_limit = (BODYTEMP_COLD_DAMAGE_LIMIT - 25)
+
+	mutantbrain = /obj/item/organ/brain/serpentid
+	mutanteyes = /obj/item/organ/eyes/serpentid
+	mutantlungs = /obj/item/organ/lungs/serpentid
+	mutantheart = /obj/item/organ/heart/serpentid
+	mutantliver = /obj/item/organ/liver/serpentid
+	mutantears = /obj/item/organ/ears/serpentid
+	mutanttongue = /obj/item/organ/tongue/synth
+	bodypart_overrides = list(
+		BODY_ZONE_HEAD = /obj/item/bodypart/head/mutant/serpentid,
+		BODY_ZONE_CHEST = /obj/item/bodypart/chest/mutant/serpentid,
+		BODY_ZONE_L_ARM = /obj/item/bodypart/arm/left/mutant/serpentid,
+		BODY_ZONE_R_ARM = /obj/item/bodypart/arm/right/mutant/serpentid,
+		BODY_ZONE_L_LEG = /obj/item/bodypart/leg/left/mutant/serpentid,
+		BODY_ZONE_R_LEG = /obj/item/bodypart/leg/right/mutant/serpentid,
+	)
+	custom_worn_icons = list(
+		LOADOUT_ITEM_HEAD = SERPENTID_HEAD_ICON,
+		LOADOUT_ITEM_MASK = SERPENTID_MASK_ICON,
+		LOADOUT_ITEM_UNIFORM = SERPENTID_UNIFORM_ICON,
+		LOADOUT_ITEM_HANDS = SERPENTID_HANDS_ICON,
+		LOADOUT_ITEM_GLASSES = SERPENTID_EYES_ICON,
+		LOADOUT_ITEM_BELT = SERPENTID_BELT_ICON,
+		LOADOUT_ITEM_MISC = SERPENTID_BACK_ICON,
+		LOADOUT_ITEM_EARS = SERPENTID_EARS_ICON
+	)
+
+/datum/species/gas/randomize_features()
+	var/list/features = ..()
+	var/main_color
+	var/random = rand(1, 6)
+	switch(random)
+		if(1)
+			main_color = "#44FF77"
+		if(2)
+			main_color = "#227900"
+		if(3)
+			main_color = "#c40000"
+		if(4)
+			main_color = "#660000"
+		if(5)
+			main_color = "#c0ad00"
+		if(6)
+			main_color = "#e6ff03"
+	features[FEATURE_MUTANT_COLOR] = main_color
+	features[FEATURE_MUTANT_COLOR_TWO] = main_color
+	features[FEATURE_MUTANT_COLOR_THREE] = main_color
+	return features
+
+/datum/species/gas/prepare_human_for_preview(mob/living/carbon/human/serpentid)
+	var/serpentid_color = "#00ac1d"
+	serpentid.dna.features[FEATURE_MUTANT_COLOR] = serpentid_color
+	serpentid.dna.features[FEATURE_MUTANT_COLOR_TWO] = serpentid_color
+	serpentid.dna.features[FEATURE_MUTANT_COLOR_THREE] = serpentid_color
+	regenerate_organs(serpentid, src, visual_only = TRUE)
+	serpentid.update_body(TRUE)
+
+/datum/species/gas/create_pref_unique_perks()
+	var/list/perk_descriptions = list()
+
+	perk_descriptions += list(list(
+		SPECIES_PERK_TYPE = SPECIES_POSITIVE_PERK,
+		SPECIES_PERK_ICON = FA_ICON_SHIELD,
+		SPECIES_PERK_NAME = "Durable Chitin",
+		SPECIES_PERK_DESC = "The Giant Armored Serpentid chitin is very robust and protects them from pressure and low temperature hazards, while also providing decent brute resistance."
+	))
+
+	perk_descriptions += list(list(
+		SPECIES_PERK_TYPE = SPECIES_POSITIVE_PERK,
+		SPECIES_PERK_ICON = FA_ICON_WEIGHT_HANGING,
+		SPECIES_PERK_NAME = "Heavy Skeleton",
+		SPECIES_PERK_DESC = "Giant Armored Serpentid are large and heavy, this makes them excellent at avoiding slipping and being grabbed."
+	))
+
+	perk_descriptions += list(list(
+		SPECIES_PERK_TYPE = SPECIES_POSITIVE_PERK,
+		SPECIES_PERK_ICON = FA_ICON_USER_NINJA,
+		SPECIES_PERK_NAME = "Active Camouflage",
+		SPECIES_PERK_DESC = "The cells in a Giant Armored Serpentid's body are able to camouflage themselves to an extent, making the GAS appear translucent to the naked eye."
+	))
+
+	perk_descriptions += list(list(
+		SPECIES_PERK_TYPE = SPECIES_NEUTRAL_PERK,
+		SPECIES_PERK_ICON = FA_ICON_EYE,
+		SPECIES_PERK_NAME = "Shielded Eyes",
+		SPECIES_PERK_DESC = "Giant Armored Serpentid have sensitive eyes, luckily they have eyeshields that can be used to make up for this."
+	))
+
+	perk_descriptions += list(list(
+		SPECIES_PERK_TYPE = SPECIES_NEUTRAL_PERK,
+		SPECIES_PERK_ICON = FA_ICON_FACE_ANGRY,
+		SPECIES_PERK_NAME = "Threat Display",
+		SPECIES_PERK_DESC = "Giant Armored Serpentid are not good at communication, however, they can perform a threat display to show when they want to attack someone."
+	))
+
+	perk_descriptions += list(list(
+		SPECIES_PERK_TYPE = SPECIES_NEGATIVE_PERK,
+		SPECIES_PERK_ICON = "star-of-life",
+		SPECIES_PERK_NAME = "Custom Body",
+		SPECIES_PERK_DESC = "Giant Armored Serpentid have a non-humanoid body and can't wear most clothes."
+	))
+
+	perk_descriptions += list(list(
+		SPECIES_PERK_TYPE = SPECIES_NEGATIVE_PERK,
+		SPECIES_PERK_ICON = FA_ICON_TEMPERATURE_HALF,
+		SPECIES_PERK_NAME = "Cold-Blooded",
+		SPECIES_PERK_DESC = "Giant Armored Serpentid are a cold blooded species and are vulnerable to temperature changes in their environment."
+	))
+
+	return perk_descriptions
+
+/datum/species/gas/get_species_description()
+	return list(
+		"Giant Armoured Serpentids, or GAS as they are often called are large insectoids hailing from a planet in the Tiziran Empire. \
+		They are excellent hunters, with phenomenal stealth capabilities, but are lacking in communication skills."
+	)
+
+/datum/species/gas/get_species_lore()
+	return list(
+		"The Giant Armoured Serpentids are an old race, of insectoid creatures from a high gravity world in the Tiziran Empire. \
+		Covered in intersecting scales, with a pair of huge claws as their main limbs, they vaguely resemble Terran mantids, though they've more \
+		in common with snakes and other reptiles from a Terran point of view.",
+		"Living in a semi-hive/colony state, GAS, as they're referred to by Nanotrasen, have a lack of self identity compared to most species, \
+		with few having a given name. This however is routinely ignored by most other races, and often they assign one to one they're working with, \
+		for ease of communication. While they live in large colonies with other GAS, up to and rarely exceeding two hundred individuals, they do not \
+		care for physical interaction with most, preferring to be left alone and given their personal space, such that they can seem aggressive even \
+		when normal actions such as a handshake or hug are offered by ignorant members of other species."
+	)
+/datum/species/gas/body_temperature_core(mob/living/carbon/human/humi, seconds_per_tick, times_fired)
+	return
+
+/obj/item/organ/ears/serpentid
+	name = "antennae"
+	icon = 'modular_skyrat/modules/organs/icons/serpentid_organs.dmi'
+	icon_state = "ears"
+
+/obj/item/organ/heart/serpentid
+	name = "serpentid heart"
+	icon = 'modular_skyrat/modules/organs/icons/serpentid_organs.dmi'
+	icon_state = "heart"
+	actions_types = list(/datum/action/cooldown/spell/toggle_active_camo)
+	var/camouflaged = FALSE
+
+/obj/item/organ/heart/serpentid/proc/toggle_camo()
+	if(!camouflaged)
+		owner.alpha = 100
+		camouflaged = TRUE
+	else
+		owner.alpha = 255
+		camouflaged = FALSE
+
+/obj/item/organ/brain/serpentid
+	name = "distributed nervous system"
+	icon = 'modular_skyrat/modules/organs/icons/serpentid_organs.dmi'
+	icon_state = "brain"
+	actions_types = list(/datum/action/cooldown/spell/toggle_threat_display)
+
+/obj/item/organ/eyes/serpentid
+	name = "compound eyes"
+	desc = "Small orange orbs."
+	icon = 'modular_skyrat/modules/organs/icons/serpentid_organs.dmi'
+	icon_state = "eyes"
+	flash_protect = FLASH_PROTECTION_HYPER_SENSITIVE
+	iris_overlay = null
+	blink_animation = FALSE
+	eye_icon = 'modular_skyrat/modules/organs/icons/serpentid_eyes.dmi'
+	eye_icon_state = "eyes"
+	actions_types = list(/datum/action/cooldown/spell/toggle_eye_shields)
+	var/eyes_shielded
+
+/obj/item/organ/lungs/serpentid
+	name = "tracheae"
+	icon = 'modular_skyrat/modules/organs/icons/serpentid_organs.dmi'
+	icon_state = "lungs"
+
+	cold_message = "You can't stand the freezing cold with every breath you take!"
+	cold_level_1_threshold = SERPENTID_COLD_THRESHOLD_1
+	cold_level_2_threshold = SERPENTID_COLD_THRESHOLD_2
+	cold_level_3_threshold = SERPENTID_COLD_THRESHOLD_3
+	cold_level_1_damage = COLD_GAS_DAMAGE_LEVEL_1 //Keep in mind with gas damage levels, you can set these to be negative, if you want someone to heal, instead.
+	cold_level_2_damage = COLD_GAS_DAMAGE_LEVEL_1
+	cold_level_3_damage = COLD_GAS_DAMAGE_LEVEL_2
+	cold_damage_type = BRUTE
+
+
+	hot_message = "You can't stand the searing heat with every breath you take!"
+	heat_level_1_threshold = SERPENTID_HEAT_THRESHOLD_1
+	heat_level_2_threshold = SERPENTID_HEAT_THRESHOLD_2
+	heat_level_3_threshold = SERPENTID_HEAT_THRESHOLD_3
+	heat_level_1_damage = HEAT_GAS_DAMAGE_LEVEL_2
+	heat_level_2_damage = HEAT_GAS_DAMAGE_LEVEL_3
+	heat_level_3_damage = HEAT_GAS_DAMAGE_LEVEL_3
+	heat_damage_type = BURN
+
+/obj/item/organ/liver/serpentid
+	name = "toxin filter"
+	icon_state = "liver"
+	icon = 'modular_skyrat/modules/organs/icons/serpentid_organs.dmi'
+	liver_resistance = 0.8 * LIVER_DEFAULT_TOX_RESISTANCE // -40%
+
+/obj/item
+	var/datum/greyscale_config/greyscale_config_worn_serpentid_fallback
+
+/datum/species/gas/get_custom_worn_icon(item_slot, obj/item/item)
+	return item.worn_icon_gas
+
+/datum/species/gas/set_custom_worn_icon(item_slot, obj/item/item, icon/icon)
+	item.worn_icon_gas = icon
+
+/datum/species/gas/get_custom_worn_config_fallback(item_slot, obj/item/item)
+	return item.greyscale_config_worn_serpentid_fallback
+
+/datum/species/gas/generate_custom_worn_icon(item_slot, obj/item/item, mob/living/carbon/human/human_owner)
+	. = ..()
+	if(.)
+		return
+
+	. = generate_custom_worn_icon_fallback(item_slot, item, human_owner)
+	if(.)
+		return
+
+/obj/item/clothing/under
+	species_clothing_color_coords = list(list(BASE_CLOTH_X_1, BASE_CLOTH_Y_1))
+	greyscale_config_worn_serpentid_fallback = /datum/greyscale_config/serpentid
+
+/obj/item/clothing/neck
+	species_clothing_color_coords = list(list(BASE_CLOTH_X_1, BASE_CLOTH_Y_1))
+	greyscale_config_worn_serpentid_fallback = /datum/greyscale_config/serpentid/scarf
+
+/obj/item/clothing/neck/cloak
+	species_clothing_color_coords = list(list(BASE_CLOTH_X_1, BASE_CLOTH_Y_1))
+	greyscale_config_worn_serpentid_fallback = /datum/greyscale_config/serpentid/cloak
+
+/obj/item/clothing/neck/tie
+	species_clothing_color_coords = list(list(BASE_CLOTH_X_1, BASE_CLOTH_Y_1))
+	greyscale_config_worn_serpentid_fallback = /datum/greyscale_config/serpentid/tie
+
+/obj/item/clothing/gloves
+	species_clothing_color_coords = list(list(BASE_CLOTH_X_1, BASE_CLOTH_Y_1))
+	greyscale_config_worn_serpentid_fallback = /datum/greyscale_config/serpentid/gloves
+
+/obj/item/clothing/glasses
+	species_clothing_color_coords = list(list(BASE_CLOTH_X_1, BASE_CLOTH_Y_1))
+	greyscale_config_worn_serpentid_fallback = /datum/greyscale_config/serpentid/eyes
+
+/obj/item/clothing/belt
+	species_clothing_color_coords = list(list(BASE_CLOTH_X_1, BASE_CLOTH_Y_1))
+	greyscale_config_worn_serpentid_fallback = /datum/greyscale_config/serpentid/belt
+
+#undef BASE_CLOTH_X_1
+#undef BASE_CLOTH_Y_1
+
+#undef SERPENTID_COLD_THRESHOLD_1
+#undef SERPENTID_COLD_THRESHOLD_2
+#undef SERPENTID_COLD_THRESHOLD_3
+
+#undef SERPENTID_HEAT_THRESHOLD_1
+#undef SERPENTID_HEAT_THRESHOLD_2
+#undef SERPENTID_HEAT_THRESHOLD_3
@@ -53,3 +53,6 @@

 /datum/species/teshari/get_scream_sound(mob/living/carbon/human/teshari)
 	return 'modular_skyrat/modules/emotes/sound/emotes/raptorscream.ogg'
+
+/datum/species/gas/get_scream_sound(mob/living/carbon/human/serpentid)
+	return 'modular_skyrat/modules/emotes/sound/emotes/serpentidscream.ogg'
@@ -67,3 +67,8 @@ GLOBAL_LIST_EMPTY(laugh_types)
 	name = "Vox Laugh"
 	male_laughsounds = list('modular_zubbers/sound/mobs/humanoids/vox/vox_laugh.ogg')
 	female_laughsounds = null
+
+/datum/laugh_type/serpentid
+	name = "Ascent Laugh"
+	male_laughsounds = list('modular_skyrat/modules/emotes/sound/emotes/serpentidlaugh.ogg')
+	female_laughsounds = null
@@ -0,0 +1,84 @@
+/datum/action/cooldown/spell/toggle_eye_shields
+	name = "Toggle Eye Shields"
+	desc = "Toggle your protective eye shields."
+	button_icon = 'modular_zubbers/icons/actions/gas.dmi'
+	button_icon_state = "gas_eyeshield"
+	spell_requirements = null
+
+/datum/action/cooldown/spell/toggle_eye_shields/cast(atom/cast_on)
+	. = ..()
+	var/obj/item/organ/eyes/serpentid/eyes = owner?.get_organ_slot(ORGAN_SLOT_EYES)
+	var/mob/living/carbon/human/human_owner = owner
+	if(!eyes)
+		return
+	if(!eyes.eyes_shielded)
+		to_chat(owner, span_notice("Nearly opaque lenses slide down to shield your eyes."))
+		eyes.eyes_shielded = TRUE
+		eyes.flash_protect = FLASH_PROTECTION_WELDER_SENSITIVE
+		owner.overlay_fullscreen("eyeshield", /atom/movable/screen/fullscreen/blind)
+		human_owner.set_eye_color("#AAAAAA")
+		human_owner.dna.update_ui_block((/datum/dna_block/identity/eye_colors))
+		human_owner.update_body()
+	else
+		to_chat(owner, span_notice("Your protective lenses retract out of the way."))
+		eyes.eyes_shielded = FALSE
+		eyes.flash_protect = FLASH_PROTECTION_HYPER_SENSITIVE
+		owner.clear_fullscreen("eyeshield")
+		human_owner.set_eye_color(sanitize_hexcolor(human_owner.client?.prefs?.read_preference(/datum/preference/color/eye_color)))
+		human_owner.dna.update_ui_block(/datum/dna_block/identity/eye_colors)
+		human_owner.update_body()
+
+/datum/action/cooldown/spell/toggle_active_camo
+	name = "Toggle Active Camo"
+	desc = "Toggle your active camo ability, becoming more translucent."
+	button_icon = 'modular_zubbers/icons/actions/gas.dmi'
+	button_icon_state = "gas-cloak-0"
+	spell_requirements = null
+
+/datum/action/cooldown/spell/toggle_active_camo/proc/update_button_state(new_state)
+	button_icon_state = new_state
+	owner.update_action_buttons()
+
+/datum/action/cooldown/spell/toggle_active_camo/cast(atom/target)
+	. = ..()
+	var/obj/item/organ/heart/serpentid/heart = owner?.get_organ_slot(ORGAN_SLOT_HEART)
+	heart.toggle_camo(target)
+	if(heart.camouflaged)
+		update_button_state("gas-cloak-1")
+	else
+		update_button_state("gas-cloak-0")
+
+/datum/action/cooldown/spell/toggle_threat_display
+	name = "Toggle Threat Display"
+	desc = "Toggle your threat display, letting your enemies know that you are ready for a fight!"
+	button_icon = 'modular_zubbers/icons/actions/gas.dmi'
+	button_icon_state = "gas-threat"
+	spell_requirements = null
+
+/datum/species/gas
+	var/displaying_threat = FALSE
+	var/image/threat_overlay
+
+/datum/action/cooldown/spell/toggle_threat_display/cast(atom/target)
+	. = ..()
+	if(!isgas(owner))
+		return
+	var/mob/living/carbon/human/snake_owner = owner
+	var/datum/species/gas/gas_species = snake_owner.dna.species
+	if(owner.incapacitated)
+		to_chat(owner, span_warning("You can't do a threat display in your current state."))
+		return
+	if(gas_species.displaying_threat == FALSE)
+		gas_species.threat_overlay = image('modular_skyrat/modules/bodyparts/icons/serpentid_parts_greyscale.dmi', "threat", MOB_LAYER)
+		var/message = tgui_alert(owner, "Would you like to show a scary message?", "Be Scary", list("Yes", "No", "Cancel"))
+		if(message == "Cancel")
+			return
+		else if(message == "Yes")
+			owner.visible_message(span_warning("\The [owner]'s skin shifts to a deep red colour with dark chevrons running down in an almost hypnotic \
+				pattern. Standing tall, [owner.p_they()] strikes, sharp spikes aimed at those threatening [owner.p_them()], claws whooshing through the air past them."))
+		playsound(owner.loc, 'modular_skyrat/modules/emotes/sound/emotes/angryserpentid.ogg', 60, 0)
+		gas_species.displaying_threat = TRUE
+		snake_owner.add_overlay(gas_species.threat_overlay)
+	else
+		snake_owner.cut_overlay(gas_species.threat_overlay)
+		gas_species.displaying_threat = FALSE
@@ -0,0 +1,3 @@
+/obj/item
+	/// Icon file for mob worn overylays, if the user is a serpentid
+	var/icon/worn_icon_gas
@@ -0,0 +1,9 @@
+/datum/emote/living/cough/get_sound(mob/living/user)
+	if(isgas(user))
+		return 'modular_skyrat/modules/emotes/sound/emotes/serpentidcough.ogg'
+	. = ..()
+
+/datum/emote/living/sneeze/get_sound(mob/living/user)
+	if(isgas(user))
+		return 'modular_skyrat/modules/emotes/sound/emotes/serpentidsneeze.ogg'
+	. = ..()
@@ -7,3 +7,8 @@
 	name = "Slug Scream"
 	male_screamsounds = list('modular_zubbers/sound/emotes/screams/slug_scream.ogg') // From Splurt, further credit to https://www.youtube.com/watch?v=AdGk4PHQDOE
 	female_screamsounds = null
+
+/datum/scream_type/serpentid
+	name = "Ascent Scream"
+	male_screamsounds = list('modular_skyrat/modules/emotes/sound/emotes/serpentidscream.ogg')
+	female_screamsounds = null
@@ -526,6 +526,7 @@
 #include "code\__DEFINES\~~bubber_defines\economy.dm"
 #include "code\__DEFINES\~~bubber_defines\experisci.dm"
 #include "code\__DEFINES\~~bubber_defines\footsteps.dm"
+#include "code\__DEFINES\~~bubber_defines\gas_clothing_paths.dm"
 #include "code\__DEFINES\~~bubber_defines\guns.dm"
 #include "code\__DEFINES\~~bubber_defines\hud.dm"
 #include "code\__DEFINES\~~bubber_defines\item.dm"
@@ -7518,6 +7519,7 @@
 #include "modular_skyrat\modules\bodyparts\code\parts.dm"
 #include "modular_skyrat\modules\bodyparts\code\podperson_bodyparts.dm"
 #include "modular_skyrat\modules\bodyparts\code\roundstartslime_bodyparts.dm"
+#include "modular_skyrat\modules\bodyparts\code\serpentid_bodyparts.dm"
 #include "modular_skyrat\modules\bodyparts\code\skrell_bodyparts.dm"
 #include "modular_skyrat\modules\bodyparts\code\slime_bodyparts.dm"
 #include "modular_skyrat\modules\bodyparts\code\snail_bodyparts.dm"
@@ -7876,6 +7878,7 @@
 #include "modular_skyrat\modules\customization\modules\mob\living\carbon\human\species\mushpeople.dm"
 #include "modular_skyrat\modules\customization\modules\mob\living\carbon\human\species\placeholder_helper.dm"
 #include "modular_skyrat\modules\customization\modules\mob\living\carbon\human\species\podweak.dm"
+#include "modular_skyrat\modules\customization\modules\mob\living\carbon\human\species\serpentid.dm"
 #include "modular_skyrat\modules\customization\modules\mob\living\carbon\human\species\skrell.dm"
 #include "modular_skyrat\modules\customization\modules\mob\living\carbon\human\species\tajaran.dm"
 #include "modular_skyrat\modules\customization\modules\mob\living\carbon\human\species\unathi.dm"
@@ -9365,6 +9368,9 @@
 #include "modular_zubbers\code\modules\customization\modules\client\augment\limbs.dm"
 #include "modular_zubbers\code\modules\customization\modules\reagents\drink_reagents.dm"
 #include "modular_zubbers\code\modules\customization\quad_eyes\preferences.dm"
+#include "modular_zubbers\code\modules\customization\species\gas\code\actions.dm"
+#include "modular_zubbers\code\modules\customization\species\gas\code\clothes.dm"
+#include "modular_zubbers\code\modules\customization\species\gas\code\emote.dm"
 #include "modular_zubbers\code\modules\customization\species\lycans\__DEFINES.dm"
 #include "modular_zubbers\code\modules\customization\species\lycans\_cursekin_species.dm"
 #include "modular_zubbers\code\modules\customization\species\lycans\_lycan_species.dm"