diff --git a/code/modules/mob/language/language.dm b/code/modules/mob/language/language.dm
index 6b2f4b688bd1..4f1c9d1b205a 100644
--- a/code/modules/mob/language/language.dm
+++ b/code/modules/mob/language/language.dm
@@ -5,7 +5,6 @@
 */
 
 /* Current unused keys, please update when you use one.
- * e
  * n
  * r
  * t
diff --git a/maps/modpack_testing/modpack_testing.dm b/maps/modpack_testing/modpack_testing.dm
index 068804e94192..9e9f452aa1ce 100644
--- a/maps/modpack_testing/modpack_testing.dm
+++ b/maps/modpack_testing/modpack_testing.dm
@@ -51,6 +51,7 @@
 	#include "../../mods/species/ascent/_ascent.dme"
 	#include "../../mods/species/drakes/_drakes.dme"
 	#include "../../mods/species/neoavians/_neoavians.dme"
+	#include "../../mods/species/octopus/_octopus.dme"
 	#include "../../mods/species/random_species/_random_species.dme"
 	#include "../../mods/species/serpentid/_serpentid.dme"
 	#include "../../mods/species/skrell/_skrell.dme"
diff --git a/maps/tradeship/tradeship.dm b/maps/tradeship/tradeship.dm
index acaaf113f919..87eccd3a488b 100644
--- a/maps/tradeship/tradeship.dm
+++ b/maps/tradeship/tradeship.dm
@@ -56,6 +56,7 @@
 	#include "../../mods/species/serpentid/_serpentid.dme"
 	#include "../../mods/species/utility_frames/_utility_frames.dme"
 	#include "../../mods/species/vox/_vox.dme"
+	#include "../../mods/species/octopus/_octopus.dme"
 
 	#include "../away/bearcat/bearcat.dm"
 	#include "../away/casino/casino.dm"
diff --git a/mods/species/octopus/_octopus.dm b/mods/species/octopus/_octopus.dm
new file mode 100644
index 000000000000..82127f46df84
--- /dev/null
+++ b/mods/species/octopus/_octopus.dm
@@ -0,0 +1,13 @@
+#define BODYTYPE_OCTOPODE "octopode"
+
+#define BP_TENTACLE_1 "tentacle_1"
+#define BP_TENTACLE_2 "tentacle_2"
+#define BP_TENTACLE_3 "tentacle_3"
+#define BP_TENTACLE_4 "tentacle_4"
+#define BP_TENTACLE_5 "tentacle_5"
+#define BP_TENTACLE_6 "tentacle_6"
+#define BP_TENTACLE_7 "tentacle_7"
+#define BP_TENTACLE_8 "tentacle_8"
+
+/decl/modpack/octopus
+	name = "Octopus Species"
diff --git a/mods/species/octopus/_octopus.dme b/mods/species/octopus/_octopus.dme
new file mode 100644
index 000000000000..2550e8226e45
--- /dev/null
+++ b/mods/species/octopus/_octopus.dme
@@ -0,0 +1,11 @@
+#ifndef MODPACK_OCTOPUS
+#define MODPACK_OCTOPUS
+// BEGIN_INCLUDE
+#include "_octopus.dm"
+#include "bodytype.dm"
+#include "gripper.dm"
+#include "language.dm"
+#include "organs.dm"
+#include "species.dm"
+// END_INCLUDE
+#endif
\ No newline at end of file
diff --git a/mods/species/octopus/bodytype.dm b/mods/species/octopus/bodytype.dm
new file mode 100644
index 000000000000..270ae2829707
--- /dev/null
+++ b/mods/species/octopus/bodytype.dm
@@ -0,0 +1,94 @@
+/datum/appearance_descriptor/age/octopus
+	chargen_min_index = 3
+	chargen_max_index = 5
+	standalone_value_descriptors = list(
+		"freshly hatched" =      1,
+		"a larva" =              2,
+		"a juvenile" =           5,
+		"a young adult" =       10,
+		"an adult" =            15,
+		"approaching old age" = 30,
+		"senescent" =           40
+	)
+
+/decl/bodytype/octopus
+	name = "octopode"
+	uid = "bodytype_octopus"
+	eye_icon = 'mods/species/octopus/icons/eyes.dmi'
+	age_descriptor = /datum/appearance_descriptor/age/octopus
+	movement_slowdown = 2
+	pixel_offset_x = -8
+
+	bodytype_category = BODYTYPE_OCTOPODE
+	icon_base =         'mods/species/octopus/icons/body.dmi'
+	icon_deformed =     'mods/species/octopus/icons/body.dmi'
+	icon_template =     'mods/species/octopus/icons/template.dmi'
+	damage_overlays =   'mods/species/octopus/icons/dam_octopus.dmi'
+	blood_overlays =    'mods/species/octopus/icons/blood_octopus.dmi'
+
+	body_flags = BODY_FLAG_NO_DNA
+	appearance_flags = HAS_SKIN_COLOR | HAS_EYE_COLOR
+	has_organ = list(
+		(BP_HEART)   = /obj/item/organ/internal/heart/octopus,
+		(BP_LUNGS)   = /obj/item/organ/internal/lungs/gills/octopus,
+		(BP_LIVER)   = /obj/item/organ/internal/liver,
+		(BP_KIDNEYS) = /obj/item/organ/internal/kidneys,
+		(BP_BRAIN)   = /obj/item/organ/internal/brain,
+		(BP_EYES)    = /obj/item/organ/internal/eyes,
+	)
+
+	has_limbs = list(
+		(BP_CHEST)      = list("path" = /obj/item/organ/external/chest/unbreakable/octopus),
+		(BP_GROIN)      = list("path" = /obj/item/organ/external/groin/unbreakable/octopus),
+		(BP_HEAD)       = list("path" = /obj/item/organ/external/head/unbreakable/octopus),
+		(BP_TENTACLE_1) = list("path" = /obj/item/organ/external/octopus_limb/first),
+		(BP_TENTACLE_2) = list("path" = /obj/item/organ/external/octopus_limb/second),
+		(BP_TENTACLE_3) = list("path" = /obj/item/organ/external/octopus_limb/third),
+		(BP_TENTACLE_4) = list("path" = /obj/item/organ/external/octopus_limb/fourth),
+		(BP_TENTACLE_5) = list("path" = /obj/item/organ/external/octopus_limb/fifth),
+		(BP_TENTACLE_6) = list("path" = /obj/item/organ/external/octopus_limb/sixth),
+		(BP_TENTACLE_7) = list("path" = /obj/item/organ/external/octopus_limb/seventh),
+		(BP_TENTACLE_8) = list("path" = /obj/item/organ/external/octopus_limb/eighth)
+	)
+	limb_mapping = list(
+		(BP_L_LEG)  = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8)),
+		(BP_R_LEG)  = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8)),
+		(BP_L_FOOT) = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8)),
+		(BP_R_FOOT) = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8)),
+		(BP_L_ARM)  = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8)),
+		(BP_R_ARM)  = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8)),
+		(BP_L_HAND) = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8)),
+		(BP_R_HAND) = list((BP_TENTACLE_1), (BP_TENTACLE_2), (BP_TENTACLE_3), (BP_TENTACLE_4), (BP_TENTACLE_5), (BP_TENTACLE_6), (BP_TENTACLE_7), (BP_TENTACLE_8))
+	)
+
+/decl/bodytype/octopus/get_movement_slowdown(var/mob/living/human/H)
+	return H?.loc?.get_fluid_depth() >= FLUID_SHALLOW ? -1 : ..()
+
+/decl/bodytype/octopus/Initialize()
+	_equip_adjust = list(
+		(slot_head_str) = list(
+			"[NORTH]" = list( 8, -4),
+			"[EAST]"  = list(-2, -4),
+			"[SOUTH]" = list( 8, -4),
+			"[WEST]"  = list(18, -4)
+		),
+		(slot_back_str) = list(
+			"[NORTH]" = list( 8, -8),
+			"[EAST]"  = list( 6, -8),
+			"[SOUTH]" = list( 8, -8),
+			"[WEST]"  = list(12, -8)
+		),
+		(BP_L_HAND) = list(
+			"[NORTH]" = list( 8, -4),
+			"[EAST]"  = list( 8, -4),
+			"[SOUTH]" = list( 8, -4),
+			"[WEST]"  = list( 8, -4)
+		),
+		(BP_R_HAND) = list(
+			"[NORTH]" = list( 8, -4),
+			"[EAST]"  = list( 8, -4),
+			"[SOUTH]" = list( 8, -4),
+			"[WEST]"  = list( 8, -4)
+		)
+	)
+	. = ..()
diff --git a/mods/species/octopus/gripper.dm b/mods/species/octopus/gripper.dm
new file mode 100644
index 000000000000..f19eeabfe267
--- /dev/null
+++ b/mods/species/octopus/gripper.dm
@@ -0,0 +1,52 @@
+/datum/inventory_slot/gripper/tentacle
+	abstract_type = /datum/inventory_slot/gripper/tentacle
+	ui_label = null
+	covering_slot_flags = SLOT_HAND_LEFT|SLOT_HAND_RIGHT
+
+/datum/inventory_slot/gripper/tentacle/first
+	slot_name = "First Tentacle"
+	slot_id = BP_TENTACLE_1
+	requires_organ_tag = BP_TENTACLE_1
+	overlay_slot = BP_L_HAND
+
+/datum/inventory_slot/gripper/tentacle/second
+	slot_name = "Second Tentacle"
+	slot_id = BP_TENTACLE_2
+	requires_organ_tag = BP_TENTACLE_2
+	overlay_slot = BP_R_HAND
+
+/datum/inventory_slot/gripper/tentacle/third
+	slot_name = "Third Tentacle"
+	slot_id = BP_TENTACLE_3
+	requires_organ_tag = BP_TENTACLE_3
+	overlay_slot = BP_L_HAND
+
+/datum/inventory_slot/gripper/tentacle/fourth
+	slot_name = "Fourth Tentacle"
+	slot_id = BP_TENTACLE_4
+	requires_organ_tag = BP_TENTACLE_4
+	overlay_slot = BP_R_HAND
+
+/datum/inventory_slot/gripper/tentacle/fifth
+	slot_name = "Fifth Tentacle"
+	slot_id = BP_TENTACLE_5
+	requires_organ_tag = BP_TENTACLE_5
+	overlay_slot = BP_L_HAND
+
+/datum/inventory_slot/gripper/tentacle/sixth
+	slot_name = "Sixth Tentacle"
+	slot_id = BP_TENTACLE_6
+	requires_organ_tag = BP_TENTACLE_6
+	overlay_slot = BP_R_HAND
+
+/datum/inventory_slot/gripper/tentacle/seventh
+	slot_name = "Seventh Tentacle"
+	slot_id = BP_TENTACLE_7
+	requires_organ_tag = BP_TENTACLE_7
+	overlay_slot = BP_L_HAND
+
+/datum/inventory_slot/gripper/tentacle/eighth
+	slot_name = "Eighth Tentacle"
+	slot_id = BP_TENTACLE_8
+	requires_organ_tag = BP_TENTACLE_8
+	overlay_slot = BP_R_HAND
diff --git a/mods/species/octopus/icons/blood_octopus.dmi b/mods/species/octopus/icons/blood_octopus.dmi
new file mode 100644
index 000000000000..47879b76ec05
Binary files /dev/null and b/mods/species/octopus/icons/blood_octopus.dmi differ
diff --git a/mods/species/octopus/icons/body.dmi b/mods/species/octopus/icons/body.dmi
new file mode 100644
index 000000000000..f2f0ca980a79
Binary files /dev/null and b/mods/species/octopus/icons/body.dmi differ
diff --git a/mods/species/octopus/icons/dam_octopus.dmi b/mods/species/octopus/icons/dam_octopus.dmi
new file mode 100644
index 000000000000..1403a4da5d8f
Binary files /dev/null and b/mods/species/octopus/icons/dam_octopus.dmi differ
diff --git a/mods/species/octopus/icons/eyes.dmi b/mods/species/octopus/icons/eyes.dmi
new file mode 100644
index 000000000000..4e0e7696ef8c
Binary files /dev/null and b/mods/species/octopus/icons/eyes.dmi differ
diff --git a/mods/species/octopus/icons/preview.dmi b/mods/species/octopus/icons/preview.dmi
new file mode 100644
index 000000000000..10ce1a084c0d
Binary files /dev/null and b/mods/species/octopus/icons/preview.dmi differ
diff --git a/mods/species/octopus/icons/template.dmi b/mods/species/octopus/icons/template.dmi
new file mode 100644
index 000000000000..98218916f7c0
Binary files /dev/null and b/mods/species/octopus/icons/template.dmi differ
diff --git a/mods/species/octopus/language.dm b/mods/species/octopus/language.dm
new file mode 100644
index 000000000000..0501d8105b49
--- /dev/null
+++ b/mods/species/octopus/language.dm
@@ -0,0 +1,24 @@
+/decl/language/cephlapoda
+	name = "Cephlapoda"
+	shorthand = "CE"
+	desc = "A melodic and complex language spoken by octopode uplifts. Some of the notes are inaudible to humans."
+	speech_verb = "warbles"
+	ask_verb = "warbles"
+	exclaim_verb = "warbles"
+	colour = "alien"
+	key = "e"
+	flags = LANG_FLAG_WHITELISTED
+	syllables = list("qr","qrr","xuq","qil","quum","xuqm","vol","xrim","zaoo","qu-uu","qix","qoo","zix","*","!")
+	speech_sounds = list(
+		'mods/species/octopus/sound/warble1.ogg',
+		'mods/species/octopus/sound/warble2.ogg',
+		'mods/species/octopus/sound/warble3.ogg',
+		'mods/species/octopus/sound/warble4.ogg',
+		'mods/species/octopus/sound/warble5.ogg',
+		'mods/species/octopus/sound/warble6.ogg',
+		'mods/species/octopus/sound/warble7.ogg',
+		'mods/species/octopus/sound/warble8.ogg',
+		'mods/species/octopus/sound/warble9.ogg',
+		'mods/species/octopus/sound/warble10.ogg',
+		'mods/species/octopus/sound/warble11.ogg'
+	)
diff --git a/mods/species/octopus/organs.dm b/mods/species/octopus/organs.dm
new file mode 100644
index 000000000000..5d89d1a51ff9
--- /dev/null
+++ b/mods/species/octopus/organs.dm
@@ -0,0 +1,98 @@
+/decl/natural_attack/punch/tentacle
+	attack_verb = list("smacked", "slapped", "swiped")
+	attack_noun = list("tentacle")
+	eye_attack_text = "tentacle"
+	eye_attack_text_victim = "tentacle"
+
+/obj/item/organ/internal/heart/octopus
+	name = "hearts"
+	gender = PLURAL
+
+/obj/item/organ/internal/lungs/gills/octopus
+	name = "funnel"
+	gender = NEUTER
+
+/obj/item/organ/external/groin/unbreakable/octopus
+	organ_categories = @"['" + ORGAN_CATEGORY_STANCE_ROOT + "']"
+	encased = null
+
+/obj/item/organ/external/head/unbreakable/octopus
+	joint = "spine"
+	amputation_point = "neck"
+	encased = null
+
+/obj/item/organ/external/chest/unbreakable/octopus
+	encased = null
+
+/obj/item/organ/external/octopus_limb
+	abstract_type = /obj/item/organ/external/octopus_limb
+	joint = "base"
+	amputation_point = "base"
+	limb_flags = ORGAN_FLAG_CAN_AMPUTATE | ORGAN_FLAG_FINGERPRINT | ORGAN_FLAG_HAS_TENDON | ORGAN_FLAG_CAN_STAND
+	parent_organ = BP_GROIN
+	organ_categories = @"['" + ORGAN_CATEGORY_STANCE + "', '" + ORGAN_CATEGORY_MANIPLE + "']"
+	var/gripper_type
+
+/obj/item/organ/external/octopus_limb/do_install(mob/living/human/target, affected, in_place, update_icon, detached)
+	. = ..()
+	if(. && owner && gripper_type)
+		owner.add_held_item_slot(new gripper_type)
+
+/obj/item/organ/external/octopus_limb/do_uninstall(in_place, detach, ignore_children, update_icon)
+	if(gripper_type)
+		owner?.remove_held_item_slot(organ_tag)
+	. = ..()
+
+/obj/item/organ/external/octopus_limb/get_natural_attacks()
+	var/static/list/natural_attacks = list(
+		/decl/natural_attack/punch/tentacle
+	)
+	return natural_attacks
+
+/obj/item/organ/external/octopus_limb/first
+	name = "first tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/first
+	organ_tag = BP_TENTACLE_1
+	icon_position = LEFT
+
+/obj/item/organ/external/octopus_limb/second
+	name = "second tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/second
+	organ_tag = BP_TENTACLE_2
+	icon_position = RIGHT
+
+/obj/item/organ/external/octopus_limb/third
+	name = "third tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/third
+	organ_tag = BP_TENTACLE_3
+	icon_position = LEFT
+
+/obj/item/organ/external/octopus_limb/fourth
+	name = "fourth tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/fourth
+	organ_tag = BP_TENTACLE_4
+	icon_position = RIGHT
+
+/obj/item/organ/external/octopus_limb/fifth
+	name = "fifth tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/fifth
+	organ_tag = BP_TENTACLE_5
+	icon_position = LEFT
+
+/obj/item/organ/external/octopus_limb/sixth
+	name = "sixth tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/sixth
+	organ_tag = BP_TENTACLE_6
+	icon_position = RIGHT
+
+/obj/item/organ/external/octopus_limb/seventh
+	name = "seventh tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/seventh
+	organ_tag = BP_TENTACLE_7
+	icon_position = LEFT
+
+/obj/item/organ/external/octopus_limb/eighth
+	name = "eighth tentacle"
+	gripper_type = /datum/inventory_slot/gripper/tentacle/eighth
+	organ_tag = BP_TENTACLE_8
+	icon_position = RIGHT
diff --git a/mods/species/octopus/sound/warble1.ogg b/mods/species/octopus/sound/warble1.ogg
new file mode 100644
index 000000000000..c9b4e1d7b5ea
Binary files /dev/null and b/mods/species/octopus/sound/warble1.ogg differ
diff --git a/mods/species/octopus/sound/warble10.ogg b/mods/species/octopus/sound/warble10.ogg
new file mode 100644
index 000000000000..4d75cd9c4355
Binary files /dev/null and b/mods/species/octopus/sound/warble10.ogg differ
diff --git a/mods/species/octopus/sound/warble11.ogg b/mods/species/octopus/sound/warble11.ogg
new file mode 100644
index 000000000000..6424ff833027
Binary files /dev/null and b/mods/species/octopus/sound/warble11.ogg differ
diff --git a/mods/species/octopus/sound/warble2.ogg b/mods/species/octopus/sound/warble2.ogg
new file mode 100644
index 000000000000..3b79ba4e28c0
Binary files /dev/null and b/mods/species/octopus/sound/warble2.ogg differ
diff --git a/mods/species/octopus/sound/warble3.ogg b/mods/species/octopus/sound/warble3.ogg
new file mode 100644
index 000000000000..4e0ab429f091
Binary files /dev/null and b/mods/species/octopus/sound/warble3.ogg differ
diff --git a/mods/species/octopus/sound/warble4.ogg b/mods/species/octopus/sound/warble4.ogg
new file mode 100644
index 000000000000..0540caa624ab
Binary files /dev/null and b/mods/species/octopus/sound/warble4.ogg differ
diff --git a/mods/species/octopus/sound/warble5.ogg b/mods/species/octopus/sound/warble5.ogg
new file mode 100644
index 000000000000..fa8a1df8aadd
Binary files /dev/null and b/mods/species/octopus/sound/warble5.ogg differ
diff --git a/mods/species/octopus/sound/warble6.ogg b/mods/species/octopus/sound/warble6.ogg
new file mode 100644
index 000000000000..7d76e2407740
Binary files /dev/null and b/mods/species/octopus/sound/warble6.ogg differ
diff --git a/mods/species/octopus/sound/warble7.ogg b/mods/species/octopus/sound/warble7.ogg
new file mode 100644
index 000000000000..3423a33a3d54
Binary files /dev/null and b/mods/species/octopus/sound/warble7.ogg differ
diff --git a/mods/species/octopus/sound/warble8.ogg b/mods/species/octopus/sound/warble8.ogg
new file mode 100644
index 000000000000..d6f941020280
Binary files /dev/null and b/mods/species/octopus/sound/warble8.ogg differ
diff --git a/mods/species/octopus/sound/warble9.ogg b/mods/species/octopus/sound/warble9.ogg
new file mode 100644
index 000000000000..a823684ddc53
Binary files /dev/null and b/mods/species/octopus/sound/warble9.ogg differ
diff --git a/mods/species/octopus/species.dm b/mods/species/octopus/species.dm
new file mode 100644
index 000000000000..8cb59a7eeca0
--- /dev/null
+++ b/mods/species/octopus/species.dm
@@ -0,0 +1,81 @@
+/decl/blood_type/octopus
+	name = "hemocyanin"
+	splatter_colour = "#68a6dd"
+	splatter_name =   "hemocyanin"
+	splatter_desc =   "It's some hemocyanin. That's not supposed to be there."
+	antigens = list("Hc")
+	antigen_category = "cephalopod"
+
+/decl/butchery_data/octopus
+	meat_type = /obj/item/food/butchery/meat/fish/octopus
+
+/decl/species/octopus
+	name = "Octopus"
+	uid = "octopus"
+	name_plural = "Octopodes"
+	description = "Octopus uplifts have been a relatively common sight in aquatic environments since the early days of \
+	Sol expansion. The are renowned as excellent engineers, bartenders, and massage therapists."
+	available_bodytypes = list(/decl/bodytype/octopus)
+	butchery_data = /decl/butchery_data/octopus
+
+	blood_types = list(/decl/blood_type/octopus)
+	flesh_color = "#dd7b68"
+
+	species_flags = SPECIES_FLAG_NO_SLIP
+	spawn_flags = SPECIES_CAN_JOIN
+
+	species_hud = /datum/hud_data/octopus
+
+	var/list/camo_last_move_by_mob = list()
+	var/list/camo_last_alpha_by_mob = list()
+	var/const/camo_delay = 10 SECONDS
+	var/const/camo_alpha_step = 10
+	var/const/camo_min_alpha = 40
+
+/decl/species/octopus/handle_death(var/mob/living/human/H)
+	update_mob_alpha(H, 255)
+
+// TODO: either do this without icon ops, or precache the states to
+// avoid mob flickering the first time they change camo state.
+/decl/species/octopus/proc/update_mob_alpha(var/mob/living/human/H, var/newval = 255)
+	if(camo_last_alpha_by_mob[H] == newval)
+		return
+	camo_last_alpha_by_mob[H] = newval
+	var/need_update
+	for(var/thing in H.get_external_organs())
+		var/obj/item/organ/external/limb = thing
+		if(!BP_IS_PROSTHETIC(limb) && limb.species == src && limb.render_alpha != newval)
+			limb.render_alpha = newval
+			limb.update_icon()
+			need_update = TRUE
+	if(need_update)
+		H.update_body()
+
+/decl/species/octopus/handle_post_spawn(var/mob/living/H)
+	. = ..()
+	camo_last_alpha_by_mob[H] = 255
+	camo_last_move_by_mob[H] = world.time
+
+/decl/species/octopus/handle_post_move(var/mob/living/human/H, exertion = TRUE)
+	..()
+	camo_last_move_by_mob[H] = world.time
+	update_mob_alpha(H, min(camo_last_alpha_by_mob[H] + camo_min_alpha, 255))
+
+/decl/species/octopus/handle_environment_special(var/mob/living/human/H)
+	var/last_alpha = camo_last_alpha_by_mob[H]
+	if(world.time >= camo_last_move_by_mob[H]+camo_delay && last_alpha > camo_min_alpha)
+		update_mob_alpha(H, max(camo_min_alpha, last_alpha-camo_alpha_step))
+
+/datum/hud_data/octopus
+	inventory_slots = list(
+		/datum/inventory_slot/uniform,
+		/datum/inventory_slot/mask,
+		/datum/inventory_slot/glasses,
+		/datum/inventory_slot/head,
+		/datum/inventory_slot/suit_storage,
+		/datum/inventory_slot/back,
+		/datum/inventory_slot/id,
+		/datum/inventory_slot/pocket,
+		/datum/inventory_slot/pocket/right,
+		/datum/inventory_slot/belt
+	)