diff --git a/code/datums/diseases/advance/symptoms/genetics.dm b/code/datums/diseases/advance/symptoms/genetics.dm
deleted file mode 100644
index 7c824d565dd..00000000000
--- a/code/datums/diseases/advance/symptoms/genetics.dm
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
-//////////////////////////////////////
-
-DNA Saboteur
-
- Very noticable.
- Lowers resistance tremendously.
- No changes to stage speed.
- Decreases transmittablity tremendously.
- Fatal Level.
-
-Bonus
- Cleans the DNA of a person and then randomly gives them a disability.
-
-//////////////////////////////////////
-*/
-
-/datum/symptom/genetic_mutation
-
- name = "Deoxyribonucleic Acid Saboteur"
- stealth = -2
- resistance = -3
- stage_speed = 0
- transmittable = -3
- level = 6
- severity = 3
- var/list/possible_mutations
- var/archived_dna = null
-
-/datum/symptom/genetic_mutation/Activate(datum/disease/advance/A)
- ..()
- if(prob(SYMPTOM_ACTIVATION_PROB * 5)) // 15% chance
- var/mob/living/carbon/M = A.affected_mob
- if(!M.has_dna())
- return
- switch(A.stage)
- if(4, 5)
- to_chat(M, "[pick("Your skin feels itchy.", "You feel light headed.")]")
- M.dna.remove_mutation_group(possible_mutations)
- randmut(M, possible_mutations)
- return
-
-// Archive their DNA before they were infected.
-/datum/symptom/genetic_mutation/Start(datum/disease/advance/A)
- possible_mutations = (bad_mutations | not_good_mutations) - mutations_list[RACEMUT]
- var/mob/living/carbon/M = A.affected_mob
- if(M)
- if(!M.has_dna())
- return
- archived_dna = M.dna.struc_enzymes
-
-// Give them back their old DNA when cured.
-/datum/symptom/genetic_mutation/End(datum/disease/advance/A)
- var/mob/living/carbon/M = A.affected_mob
- if(M && archived_dna)
- if(!M.has_dna())
- return
- M.dna.struc_enzymes = archived_dna
- M.domutcheck()
diff --git a/code/datums/diseases/dna_spread.dm b/code/datums/diseases/dna_spread.dm
deleted file mode 100644
index b0238b6418a..00000000000
--- a/code/datums/diseases/dna_spread.dm
+++ /dev/null
@@ -1,71 +0,0 @@
-/datum/disease/dnaspread
- name = "Space Retrovirus"
- max_stages = 4
- spread_text = "On contact"
- spread_flags = CONTACT_GENERAL
- cure_text = "Mutadone"
- cures = list("mutadone")
- disease_flags = CAN_CARRY|CAN_RESIST|CURABLE
- agent = "S4E1 retrovirus"
- viable_mobtypes = list(/mob/living/carbon/human)
- var/datum/dna/original_dna = null
- var/transformed = 0
- desc = "This disease transplants the genetic code of the initial vector into new hosts."
- severity = MEDIUM
-
-
-/datum/disease/dnaspread/stage_act()
- ..()
- if(!affected_mob.dna)
- cure()
-
- if(!strain_data["dna"])
- //Absorbs the target DNA.
- strain_data["dna"] = new affected_mob.dna.type
- affected_mob.dna.copy_dna(strain_data["dna"])
- carrier = TRUE
- stage = 4
- return
-
- switch(stage)
- if(2 || 3) //Pretend to be a cold and give time to spread.
- if(prob(8))
- affected_mob.emote("sneeze")
- if(prob(8))
- affected_mob.emote("cough")
- if(prob(1))
- to_chat(affected_mob, "Your muscles ache.")
- if(prob(20))
- affected_mob.take_organ_damage(1)
- if(prob(1))
- to_chat(affected_mob, "Your stomach hurts.")
- if(prob(20))
- affected_mob.adjustToxLoss(2)
- if(4)
- if(!transformed && !carrier)
- //Save original dna for when the disease is cured.
- original_dna = new affected_mob.dna.type
- affected_mob.dna.copy_dna(original_dna)
-
- to_chat(affected_mob, "You don't feel like yourself..")
- var/datum/dna/transform_dna = strain_data["dna"]
-
- transform_dna.transfer_identity(affected_mob, transfer_SE = 1)
- affected_mob.real_name = affected_mob.dna.real_name
- affected_mob.updateappearance(mutcolor_update=1)
- affected_mob.domutcheck()
-
- transformed = 1
- carrier = 1 //Just chill out at stage 4
-
- return
-
-/datum/disease/dnaspread/Destroy()
- if(original_dna && transformed && affected_mob)
- original_dna.transfer_identity(affected_mob, transfer_SE = 1)
- affected_mob.real_name = affected_mob.dna.real_name
- affected_mob.updateappearance(mutcolor_update=1)
- affected_mob.domutcheck()
-
- to_chat(affected_mob, "You feel more like yourself.")
- return ..()
diff --git a/code/modules/buildmode/submodes/sdql.dm b/code/modules/buildmode/submodes/sdql.dm
deleted file mode 100644
index 104b7bd7af6..00000000000
--- a/code/modules/buildmode/submodes/sdql.dm
+++ /dev/null
@@ -1,12 +0,0 @@
-// SKELETON CODE, not yet functional
-
-/datum/buildmode_mode/sdql
- key = "sdql"
-
- var/sdql_command = "SELECT /turf IN"
-
-/datum/buildmode_mode/sdql/show_help(mob/user)
-
-/datum/buildmode_mode/sdql/change_settings(mob/user)
-
-/datum/buildmode_mode/sdql/handle_click(mob/user, params, obj/object)
diff --git a/code/modules/procedural_mapping/mapGenerators/lava_river.dm b/code/modules/procedural_mapping/mapGenerators/lava_river.dm
deleted file mode 100644
index 19a61aaabe6..00000000000
--- a/code/modules/procedural_mapping/mapGenerators/lava_river.dm
+++ /dev/null
@@ -1,25 +0,0 @@
-/datum/mapGenerator/lavaland
- var/start_z
- var/min_x = 0
- var/min_y = 0
- var/max_x = 0
- var/max_y = 0
- modules = list(/datum/mapGeneratorModule/river)
-
-/datum/mapGenerator/lavaland/defineRegion(turf/Start, turf/End, replace = 0)
- start_z = Start.z
- min_x = min(Start.x,End.x)
- min_y = min(Start.y,End.y)
- max_x = max(Start.x,End.x)
- max_y = max(Start.y,End.y)
- ..()
-
-/datum/mapGeneratorModule/river
- var/river_type = /turf/simulated/floor/plating/lava/smooth
- var/river_nodes = 4
-
-/datum/mapGeneratorModule/river/generate()
- var/datum/mapGenerator/lavaland/L = mother
- if(!istype(L))
- return
- spawn_rivers(L.start_z, river_nodes, river_type, min_x = L.min_x, min_y = L.min_y, max_x = L.max_x, max_y = L.max_y)
diff --git a/code/modules/procedural_mapping/mapGenerators/lavaland.dm b/code/modules/procedural_mapping/mapGenerators/lavaland.dm
deleted file mode 100644
index a0ba2ae816e..00000000000
--- a/code/modules/procedural_mapping/mapGenerators/lavaland.dm
+++ /dev/null
@@ -1,29 +0,0 @@
-/datum/mapGeneratorModule/bottomLayer/lavaland_default
- spawnableTurfs = list(/turf/simulated/floor/plating/asteroid/basalt/lava_land_surface = 100)
-
-/datum/mapGeneratorModule/bottomLayer/lavaland_mineral
- spawnableTurfs = list(/turf/simulated/mineral/random/volcanic = 100)
-
-/datum/mapGeneratorModule/bottomLayer/lavaland_mineral/dense
- spawnableTurfs = list(/turf/simulated/mineral/random/high_chance/volcanic = 100)
-
-/datum/mapGeneratorModule/splatterLayer/lavalandMonsters
- spawnableTurfs = list()
- spawnableAtoms = list(/mob/living/simple_animal/hostile/asteroid/goliath/beast = 10,
- /mob/living/simple_animal/hostile/asteroid/hivelord/legion = 10,
- /mob/living/simple_animal/hostile/asteroid/basilisk/watcher = 10)
-
-/datum/mapGeneratorModule/splatterLayer/lavalandTendrils
- spawnableTurfs = list()
- spawnableAtoms = list(/mob/living/simple_animal/hostile/spawner/lavaland/goliath = 5,
- /mob/living/simple_animal/hostile/spawner/lavaland/legion = 5,
- /mob/living/simple_animal/hostile/spawner/lavaland/goliath = 5)
-
-/datum/mapGenerator/lavaland/ground_only
- modules = list(/datum/mapGeneratorModule/bottomLayer/lavaland_default)
-
-/datum/mapGenerator/lavaland/dense_ores
- modules = list(/datum/mapGeneratorModule/bottomLayer/lavaland_mineral/dense)
-
-/datum/mapGenerator/lavaland/normal_ores
- modules = list(/datum/mapGeneratorModule/bottomLayer/lavaland_mineral)
diff --git a/sound/items/PDA/__credits.dm b/sound/items/PDA/__credits.dm
deleted file mode 100644
index 5012fea2b34..00000000000
--- a/sound/items/PDA/__credits.dm
+++ /dev/null
@@ -1,10 +0,0 @@
-//Since there is space, and .ogg files show up in DM anyways, going to put the source of each file here.
-
-//example entry
-//file-name.ogg
-/*desc & credits
-*/
-
-//ambicha4-short.ogg
-/*4-second excerpt from sound/ambience/ambicha4.ogg
-*/