diff --git a/maplestation.dme b/maplestation.dme
index 1c9322709cb1..28189726e034 100644
--- a/maplestation.dme
+++ b/maplestation.dme
@@ -6442,6 +6442,7 @@
 #include "maplestation_modules\code\modules\mob\living\carbon\human\species_types\skrell.dm"
 #include "maplestation_modules\code\modules\mob\living\carbon\human\species_types\species.dm"
 #include "maplestation_modules\code\modules\mob\living\carbon\human\species_types\vampire.dm"
+#include "maplestation_modules\code\modules\mob\living\carbon\human\species_types\werewolf.dm"
 #include "maplestation_modules\code\modules\mob\living\carbon\human\species_types\synth\synth.dm"
 #include "maplestation_modules\code\modules\mob\living\carbon\human\species_types\synth\synth_ion.dm"
 #include "maplestation_modules\code\modules\mob\living\silicon\robot\robot_defines.dm"
@@ -6482,9 +6483,11 @@
 #include "maplestation_modules\code\modules\surgery\organs\autosurgeon.dm"
 #include "maplestation_modules\code\modules\surgery\organs\ears.dm"
 #include "maplestation_modules\code\modules\surgery\organs\eyes.dm"
+#include "maplestation_modules\code\modules\surgery\organs\heart.dm"
 #include "maplestation_modules\code\modules\surgery\organs\liver.dm"
 #include "maplestation_modules\code\modules\surgery\organs\tails.dm"
 #include "maplestation_modules\code\modules\surgery\organs\tongue.dm"
+#include "maplestation_modules\code\modules\surgery\organs\werewolf_parts.dm"
 #include "maplestation_modules\code\modules\uplink\uplink_devices.dm"
 #include "maplestation_modules\code\modules\uplink\uplink_infiltrator.dm"
 #include "maplestation_modules\code\modules\uplink\uplink_items.dm"
diff --git a/maplestation_modules/code/__DEFINES/DNA.dm b/maplestation_modules/code/__DEFINES/DNA.dm
index c4249c288de3..8e4959f01702 100644
--- a/maplestation_modules/code/__DEFINES/DNA.dm
+++ b/maplestation_modules/code/__DEFINES/DNA.dm
@@ -5,3 +5,4 @@
 #define SPECIES_REPLOID "reploid"
 #define SPECIES_SYNTH "synth"
 #define SPECIES_ORNITHID "ornithid"
+#define SPECIES_WEREWOLF "werewolf"
diff --git a/maplestation_modules/code/modules/mob/living/carbon/human/species_types/werewolf.dm b/maplestation_modules/code/modules/mob/living/carbon/human/species_types/werewolf.dm
new file mode 100644
index 000000000000..2536a4e953e6
--- /dev/null
+++ b/maplestation_modules/code/modules/mob/living/carbon/human/species_types/werewolf.dm
@@ -0,0 +1,76 @@
+/datum/species/werewolf
+	name = "werewolf"
+	id = SPECIES_WEREWOLF
+	inherent_traits = list(
+		TRAIT_USES_SKINTONES,
+		TRAIT_NO_UNDERWEAR,
+		TRAIT_NO_AUGMENTS,
+		TRAIT_IGNOREDAMAGESLOWDOWN,
+		TRAIT_PUSHIMMUNE,
+		TRAIT_STUNIMMUNE,
+		TRAIT_PRIMITIVE,
+		TRAIT_CAN_STRIP,
+		TRAIT_CHUNKYFINGERS
+	)
+	mutanttongue = /obj/item/organ/internal/tongue/werewolf
+	mutantears = /obj/item/organ/internal/ears/werewolf
+	mutanteyes = /obj/item/organ/internal/eyes/werewolf
+	mutantbrain = /obj/item/organ/internal/brain/werewolf
+	mutantliver = obj/item/organ/internal/liver/werewolf
+	mutantheart = obj/item/organ/internal/heart/werewolf
+	external_organs = list(
+		/obj/item/organ/external/tail/cat = "Cat",
+	)
+	skinned_type = /obj/item/stack/sheet/animalhide/human
+	changesource_flags = MIRROR_BADMIN | WABBAJACK | MIRROR_MAGIC | MIRROR_PRIDE | ERT_SPAWN | RACE_SWAP | SLIME_EXTRACT
+	no_equip_flags = ITEM_SLOT_MASK | ITEM_SLOT_OCLOTHING | ITEM_SLOT_GLOVES | ITEM_SLOT_FEET | ITEM_SLOT_ICLOTHING | ITEM_SLOT_SUITSTORE
+
+	bodypart_overrides = list(
+		BODY_ZONE_HEAD = /obj/item/bodypart/head/werewolf,
+		BODY_ZONE_CHEST = /obj/item/bodypart/chest/werewolf,
+		BODY_ZONE_L_ARM = /obj/item/bodypart/arm/left/werewolf,
+		BODY_ZONE_R_ARM = /obj/item/bodypart/arm/right/werewolf,
+		BODY_ZONE_L_LEG = /obj/item/bodypart/leg/left/werewolf,
+		BODY_ZONE_R_LEG = /obj/item/bodypart/leg/right/werewolf,
+	)
+
+/obj/item/organ/internal/brain/werewolf/get_attacking_limb(mob/living/carbon/human/target)
+	name = "werewolf brain"
+	desc = "a strange mixture of a human and wolf brain"
+	organ_traits = list(TRAIT_PRIMITIVE, TRAIT_CAN_STRIP)
+
+	if(target.body_position == LYING_DOWN)
+		return owner.get_bodypart(BODY_ZONE_HEAD)
+	return ..()
+
+/datum/species/werewolf/prepare_human_for_preview(mob/living/carbon/human/human)
+	human.set_haircolor("#bb9966", update = FALSE) // brown
+	human.set_hairstyle("Business Hair", update = TRUE)
+
+/datum/species/werewolf/get_species_description()
+	return "N/A"
+
+/datum/species/human/get_species_lore()
+	return list(
+		"N/A",
+	)
+
+/datum/species/werewolf/create_pref_unique_perks()
+	var/list/to_add = list()
+
+	to_add += list(
+		list(
+			SPECIES_PERK_TYPE = SPECIES_NEGATIVE_PERK,
+			SPECIES_PERK_ICON = "paw",
+			SPECIES_PERK_NAME = "Primal Primate",
+			SPECIES_PERK_DESC = "Werewolves are monstrous humans, and can't do most things a human can do. Computers are impossible, \
+				complex machines are right out, and most clothes don't fit your larger form.",
+		),
+		list(
+			SPECIES_PERK_TYPE = SPECIES_NEGATIVE_PERK,
+			SPECIES_PERK_ICON = "assistive-listening-systems",
+			SPECIES_PERK_NAME = "Sensitive Hearing",
+			SPECIES_PERK_DESC = "Werewolves are more sensitive to loud sounds, such as flashbangs.",
+		))
+
+	return to_add
diff --git a/maplestation_modules/code/modules/surgery/organs/ears.dm b/maplestation_modules/code/modules/surgery/organs/ears.dm
index c3a7380ce876..95697de99fbe 100644
--- a/maplestation_modules/code/modules/surgery/organs/ears.dm
+++ b/maplestation_modules/code/modules/surgery/organs/ears.dm
@@ -31,3 +31,14 @@
 	icon_state = "catcyber"
 	icon = 'maplestation_modules/icons/mob/mutant_bodyparts.dmi'
 	locked = TRUE
+
+/obj/item/organ/internal/ears/werewolf
+	name = "wolf ears"
+	icon = 'icons/obj/clothing/head/costume.dmi'
+	icon_state = "kitty"
+	desc = "Allows the user to more easily hear whispers. The user becomes extra vulnerable to loud noises, however"
+	// Same sensitivity as felinid ears
+	damage_multiplier = 2
+/obj/item/organ/internal/ears/werewolf/on_mob_insert(mob/living/carbon/ear_owner)
+	. = ..()
+	organ_traits = list(TRAIT_GOOD_HEARING)
diff --git a/maplestation_modules/code/modules/surgery/organs/eyes.dm b/maplestation_modules/code/modules/surgery/organs/eyes.dm
index 1515021eb4b6..a7e9a9e94279 100644
--- a/maplestation_modules/code/modules/surgery/organs/eyes.dm
+++ b/maplestation_modules/code/modules/surgery/organs/eyes.dm
@@ -5,3 +5,9 @@
 /mob/living/carbon
 	/// Overlay file to take (missing) eye icons from
 	var/missing_eye_file = 'icons/mob/human/human_face.dmi'
+
+/obj/item/organ/internal/eyes/werewolf
+	name = "wolf eyes"
+	desc = "Large and powerful eyes."
+	sight_flags = SEE_MOBS
+	color_cutoffs = list(25, 5, 42)
diff --git a/maplestation_modules/code/modules/surgery/organs/heart.dm b/maplestation_modules/code/modules/surgery/organs/heart.dm
new file mode 100644
index 000000000000..29b445e90659
--- /dev/null
+++ b/maplestation_modules/code/modules/surgery/organs/heart.dm
@@ -0,0 +1,10 @@
+/obj/item/organ/internal/heart/werewolf
+	name = "massive heart"
+	desc = "An absolutely monstrous heart."
+	icon_state = "heart-on"
+	base_icon_state = "heart"
+	maxHealth = 2 * STANDARD_ORGAN_THRESHOLD
+/obj/item/organ/internal/heart/wolf/Initialize(mapload)
+	. = ..()
+	transform = transform.Scale(1.5)
+
diff --git a/maplestation_modules/code/modules/surgery/organs/liver.dm b/maplestation_modules/code/modules/surgery/organs/liver.dm
index c31b633e2529..4909875fe62b 100644
--- a/maplestation_modules/code/modules/surgery/organs/liver.dm
+++ b/maplestation_modules/code/modules/surgery/organs/liver.dm
@@ -12,3 +12,23 @@
 /obj/item/organ/internal/liver/lizard/Initialize(mapload)
 	. = ..()
 	disease_free_foods = typecacheof(/obj/item/food/deadmouse)
+
+/obj/item/organ/internal/liver/werewolf
+
+	name = "Beastly liver"
+	desc = "A large monstrous liver."
+	icon_state = "liver"
+	organ_traits = list(TRAIT_STABLELIVER|ORGAN_UNREMOVABLE)
+	///Var for brute healing via blood
+	var/blood_brute_healing = 2.5
+	///Var for burn healing via blood
+	var/blood_burn_healing = 2.5
+
+/obj/item/organ/internal/liver/werewolf/handle_chemical(mob/living/carbon/organ_owner, datum/reagent/chem, seconds_per_tick, times_fired)
+	. = ..()
+	// parent returned COMSIG_MOB_STOP_REAGENT_CHECK or we are failing
+	if((. & COMSIG_MOB_STOP_REAGENT_CHECK) || (organ_flags & ORGAN_FAILING))
+		return
+	if(istype(chem, /datum/reagent/silver))
+		organ_owner.adjustStaminaLoss(7.5 * REM * seconds_per_tick, updating_stamina = TRUE)
+		organ_owner.adjustFireLoss(5.0 * REM * seconds_per_tick, updating_health = TRUE)
diff --git a/maplestation_modules/code/modules/surgery/organs/tongue.dm b/maplestation_modules/code/modules/surgery/organs/tongue.dm
index e7c13530e991..4c1e3e8fb789 100644
--- a/maplestation_modules/code/modules/surgery/organs/tongue.dm
+++ b/maplestation_modules/code/modules/surgery/organs/tongue.dm
@@ -36,3 +36,38 @@
 
 /obj/item/organ/internal/tongue/lizard/get_possible_languages()
 	return ..() + /datum/language/impdraconic
+
+/obj/item/organ/internal/tongue/werewolf
+	name = "wolf tongue"
+	desc = "A large tongue that looks like a mix of a human's and a wolf's."
+	icon_state = "werewolf_tongue"
+	icon = 'maplestation_modules/icons/mob/mutant_bodyparts.dmi'
+	say_mod = "growls"
+	modifies_speech = TRUE
+	taste_sensitivity = 5
+	liked_foodtypes = GROSS | MEAT | RAW | GORE
+	disliked_foodtypes = SUGAR
+
+/obj/item/organ/internal/tongue/werewolf/modify_speech(datum/source, list/speech_args)
+	var/message = speech_args[SPEECH_MESSAGE]
+	if(message[1] != "*")
+
+		// all occurrences of characters "eiou" (case-insensitive) are replaced with "r"
+		message = replacetext(message, regex(@"[eiou]", "ig"), "r")
+		// all characters other than "zhrgbmna .!?-" (case-insensitive) are stripped
+		message = replacetext(message, regex(@"[^zhrgbmna.!?-\s]", "ig"), "")
+		// multiple spaces are replaced with a single (whitespace is trimmed)
+		message = replacetext(message, regex(@"(\s+)", "g"), " ")
+
+		var/list/old_words = splittext(message, " ")
+		var/list/new_words = list()
+		for(var/word in old_words)
+			// lower-case "r" at the end of words replaced with "rh"
+			word = replacetext(word, regex(@"\lr\b"), "rh")
+			// an "a" or "A" by itself will be replaced with "hra"
+			word = replacetext(word, regex(@"\b[Aa]\b"), "hra")
+			new_words += word
+
+		message = new_words.Join(" ")
+		message = capitalize(message)
+		speech_args[SPEECH_MESSAGE] = message
diff --git a/maplestation_modules/code/modules/surgery/organs/werewolf_parts.dm b/maplestation_modules/code/modules/surgery/organs/werewolf_parts.dm
new file mode 100644
index 000000000000..0765ae15e3f0
--- /dev/null
+++ b/maplestation_modules/code/modules/surgery/organs/werewolf_parts.dm
@@ -0,0 +1,127 @@
+///WEREWOLF
+/obj/item/bodypart/head/werewolf
+	limb_id = SPECIES_WEREWOLF
+	icon_greyscale = 'maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi'
+	is_dimorphic = FALSE
+	should_draw_greyscale = TRUE
+
+/obj/item/bodypart/head/werewolf/update_limb(dropping_limb, is_creating)
+	. = ..()
+	var/mob/living/carbon/human/wolf = owner
+	species_color = wolf.hair_color
+	draw_color = species_color
+	burn_modifier = 0.75
+	brute_modifier = 0.25
+	unarmed_attack_verb = "bite"
+	grappled_attack_verb = "maul"
+	unarmed_attack_effect = ATTACK_EFFECT_BITE
+	unarmed_attack_sound = 'sound/weapons/bite.ogg'
+	unarmed_miss_sound = 'sound/weapons/bite.ogg'
+	unarmed_damage_low = 60
+	unarmed_damage_high = 75
+	unarmed_effectiveness = 50
+	dmg_overlay_type = null
+	biological_state = (BIO_FLESH|BIO_BLOODED)
+	head_flags = HEAD_EYESPRITES|HEAD_EYECOLOR|HEAD_EYEHOLES|HEAD_DEBRAIN|HEAD_HAIR
+
+/obj/item/bodypart/chest/werewolf
+	limb_id = SPECIES_WEREWOLF
+	icon_greyscale = 'maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi'
+	is_dimorphic = TRUE
+	should_draw_greyscale = TRUE
+
+/obj/item/bodypart/chest/werewolf/update_limb(dropping_limb, is_creating)
+	. = ..()
+	var/mob/living/carbon/human/wolf = owner
+	species_color = wolf.hair_color
+	draw_color = species_color
+	burn_modifier = 0.75
+	brute_modifier = 0.25
+	dmg_overlay_type = null
+	biological_state = (BIO_FLESH|BIO_BLOODED)
+	bodypart_traits = list(TRAIT_NO_JUMPSUIT, TRAIT_IGNOREDAMAGESLOWDOWN, TRAIT_PUSHIMMUNE, TRAIT_STUNIMMUNE)
+	wing_types = NONE
+
+/obj/item/bodypart/arm/left/werewolf
+	limb_id = SPECIES_WEREWOLF
+	icon_greyscale = 'maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi'
+	should_draw_greyscale = TRUE
+
+/obj/item/bodypart/arm/left/werewolf/update_limb(dropping_limb, is_creating)
+	. = ..()
+	var/mob/living/carbon/human/wolf = owner
+	species_color = wolf.hair_color
+	draw_color = species_color
+	unarmed_attack_verb = "slash"
+	grappled_attack_verb = "lacerate"
+	unarmed_attack_effect = ATTACK_EFFECT_CLAW
+	unarmed_attack_sound = 'sound/weapons/slice.ogg'
+	unarmed_miss_sound = 'sound/weapons/slashmiss.ogg'
+	unarmed_damage_low = 20
+	unarmed_damage_high = 25
+	unarmed_effectiveness = 20
+	burn_modifier = 0.75
+	brute_modifier = 0.25
+	dmg_overlay_type = null
+	bodypart_traits = list(TRAIT_CHUNKYFINGERS)
+	biological_state = (BIO_FLESH|BIO_BLOODED)
+
+/obj/item/bodypart/arm/right/werewolf
+	limb_id = SPECIES_WEREWOLF
+	icon_greyscale = 'maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi'
+	should_draw_greyscale = TRUE
+
+/obj/item/bodypart/arm/right/werewolf/update_limb(dropping_limb, is_creating)
+	. = ..()
+	var/mob/living/carbon/human/wolf = owner
+	species_color = wolf.hair_color
+	draw_color = species_color
+	unarmed_attack_verb = "slash"
+	grappled_attack_verb = "lacerate"
+	unarmed_attack_effect = ATTACK_EFFECT_CLAW
+	unarmed_attack_sound = 'sound/weapons/slice.ogg'
+	unarmed_miss_sound = 'sound/weapons/slashmiss.ogg'
+	unarmed_damage_low = 20
+	unarmed_damage_high = 25
+	unarmed_effectiveness = 20
+	burn_modifier = 0.75
+	brute_modifier = 0.25
+	dmg_overlay_type = null
+	bodypart_traits = list(TRAIT_CHUNKYFINGERS)
+	biological_state = (BIO_FLESH|BIO_BLOODED)
+
+/obj/item/bodypart/leg/left/werewolf
+	limb_id = SPECIES_WEREWOLF
+	icon_greyscale = 'maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi'
+	should_draw_greyscale = TRUE
+
+/obj/item/bodypart/leg/left/werewolf/update_limb(dropping_limb, is_creating)
+	. = ..()
+	var/mob/living/carbon/human/wolf = owner
+	species_color = wolf.hair_color
+	draw_color = species_color
+	burn_modifier = 0.75
+	brute_modifier = 0.25
+	speed_modifier = 3
+	dmg_overlay_type = null
+	bodytype = BODYTYPE_HUMANOID | BODYTYPE_ORGANIC | BODYTYPE_DIGITIGRADE
+	footstep_type = FOOTSTEP_MOB_CLAW
+	biological_state = (BIO_FLESH|BIO_BLOODED)
+
+/obj/item/bodypart/leg/right/werewolf
+	limb_id = SPECIES_WEREWOLF
+	icon_greyscale = 'maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi'
+	should_draw_greyscale = TRUE
+
+/obj/item/bodypart/leg/right/werewolf/update_limb(dropping_limb, is_creating)
+	. = ..()
+	var/mob/living/carbon/human/wolf = owner
+	species_color = wolf.hair_color
+	draw_color = species_color
+	burn_modifier = 0.75
+	brute_modifier = 0.25
+	speed_modifier = 3
+	dmg_overlay_type = null
+	bodytype = BODYTYPE_HUMANOID | BODYTYPE_ORGANIC | BODYTYPE_DIGITIGRADE
+	footstep_type = FOOTSTEP_MOB_CLAW
+	biological_state = (BIO_FLESH|BIO_BLOODED)
diff --git a/maplestation_modules/icons/mob/mutant_bodyparts.dmi b/maplestation_modules/icons/mob/mutant_bodyparts.dmi
index eb3e768f68d7..8b9d547aa121 100644
Binary files a/maplestation_modules/icons/mob/mutant_bodyparts.dmi and b/maplestation_modules/icons/mob/mutant_bodyparts.dmi differ
diff --git a/maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi b/maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi
new file mode 100644
index 000000000000..677d2081622e
Binary files /dev/null and b/maplestation_modules/icons/mob/werewolf_parts_greyscale.dmi differ