diff --git a/code/datums/brain_damage/hypnosis.dm b/code/datums/brain_damage/hypnosis.dm
new file mode 100644
index 00000000000..61e59026ebb
--- /dev/null
+++ b/code/datums/brain_damage/hypnosis.dm
@@ -0,0 +1,48 @@
+/datum/brain_trauma/hypnosis
+	name = "Hypnosis"
+	desc = "Patient's unconscious is completely enthralled by a word or sentence, focusing their thoughts and actions on it."
+	scan_desc = "looping thought pattern"
+	gain_text = ""
+	lose_text = ""
+	resilience = TRAUMA_RESILIENCE_SURGERY
+
+	var/hypnotic_phrase = ""
+
+/datum/brain_trauma/hypnosis/New(phrase)
+	if(!phrase)
+		qdel(src)
+	hypnotic_phrase = phrase
+	..()
+
+/datum/brain_trauma/hypnosis/on_gain()
+	message_admins("[ADMIN_LOOKUPFLW(owner)] was hypnotized with the phrase '[hypnotic_phrase]'.")
+	log_game("[key_name(owner)] was hypnotized with the phrase '[hypnotic_phrase]'.")
+	to_chat(owner, "<span class='reallybig hypnophrase'>[hypnotic_phrase]</span>")
+	to_chat(owner, "<span class='notice'>[pick("You feel your thoughts focusing on this phrase... you can't seem to get it out of your head.",\
+												"Your head hurts, but this is all you can think of. It must be vitally important.",\
+												"You feel a part of your mind repeating this over and over. You need to follow these words.",\
+												"Something about this sounds... right, for some reason. You feel like you should follow these words.",\
+												"These words keep echoing in your mind. You find yourself completely fascinated by them.")]</span>")
+	to_chat(owner, "<span class='boldwarning'>You've been hypnotized by this sentence. You must follow these words. If it isn't a clear order, you can freely interpret how to do so,\
+										as long as you act like the words are your highest priority.</span>")
+	..()
+
+/datum/brain_trauma/hypnosis/on_lose()
+	message_admins("[ADMIN_LOOKUPFLW(owner)] is no longer hypnotized with the phrase '[hypnotic_phrase]'.")
+	log_game("[key_name(owner)] is no longer hypnotized with the phrase '[hypnotic_phrase]'.")
+	to_chat(owner, "<span class='userdanger'>You suddenly snap out of your hypnosis. The phrase '[hypnotic_phrase]' no longer feels important to you.</span>")
+	..()
+
+/datum/brain_trauma/hypnosis/on_life()
+	..()
+	if(prob(2))
+		switch(rand(1,2))
+			if(1)
+				to_chat(owner, "<i>...[lowertext(hypnotic_phrase)]...</i>")
+			if(2)
+				new /datum/hallucination/chat(owner, TRUE, FALSE, "<span class='hypnophrase'>[hypnotic_phrase]</span>")
+
+/datum/brain_trauma/hypnosis/on_hear(message, speaker, message_language, raw_message, radio_freq)
+	var/regex/target_phrase = new("(\\b[hypnotic_phrase]\\b)","ig")
+	message = target_phrase.Replace(message, "<span class='hypnophrase'>$1</span>")
+	return message
\ No newline at end of file
diff --git a/code/datums/brain_damage/severe.dm b/code/datums/brain_damage/severe.dm
index a8adbfbce81..9c8bfffcb33 100644
--- a/code/datums/brain_damage/severe.dm
+++ b/code/datums/brain_damage/severe.dm
@@ -203,4 +203,21 @@
 
 /datum/brain_trauma/severe/pacifism/on_lose()
 	owner.remove_trait(TRAIT_PACIFISM, TRAUMA_TRAIT)
-	..()
\ No newline at end of file
+	..()
+	
+/datum/brain_trauma/severe/hypnotic_stupor
+	name = "Hypnotic Stupor"
+	desc = "Patient is prone to episodes of extreme stupor that leaves them extremely suggestible."
+	scan_desc = "oneiric feedback loop"
+	gain_text = "<span class='warning'>You feel somewhat dazed.</span>"
+	lose_text = "<span class='notice'>You feel like a fog was lifted from your mind.</span>"
+
+/datum/brain_trauma/severe/hypnotic_stupor/on_lose() //hypnosis must be cleared separately, but brain surgery should get rid of both anyway
+	..()
+	owner.remove_status_effect(/datum/status_effect/trance)
+	
+/datum/brain_trauma/severe/hypnotic_stupor/on_life()
+	..()
+	if(prob(1) && !owner.has_status_effect(/datum/status_effect/trance))
+		owner.apply_status_effect(/datum/status_effect/trance, rand(100,300), FALSE)
+	
\ No newline at end of file
diff --git a/code/datums/status_effects/debuffs.dm b/code/datums/status_effects/debuffs.dm
index 63b826a8989..286b92861b2 100644
--- a/code/datums/status_effects/debuffs.dm
+++ b/code/datums/status_effects/debuffs.dm
@@ -524,4 +524,52 @@
 /datum/status_effect/gonbolaPacify/on_remove()
 	owner.remove_trait(TRAIT_PACIFISM, "gonbolaPacify")
 	owner.remove_trait(TRAIT_MUTE, "gonbolaMute")
-	owner.remove_trait(TRAIT_JOLLY, "gonbolaJolly")
\ No newline at end of file
+	owner.remove_trait(TRAIT_JOLLY, "gonbolaJolly")
+
+/datum/status_effect/trance
+	id = "trance"
+	status_type = STATUS_EFFECT_UNIQUE
+	duration = 300
+	tick_interval = 10
+	examine_text = "<span class='warning'>SUBJECTPRONOUN seems slow and unfocused.</span>"
+	var/stun = TRUE
+
+/datum/status_effect/trance/tick()
+	if(stun)
+		owner.Stun(60, TRUE, TRUE)
+	owner.dizziness = 20
+
+/datum/status_effect/trance/on_apply()
+	if(!iscarbon(owner))
+		return FALSE
+	RegisterSignal(owner, COMSIG_MOVABLE_HEAR, .proc/hypnotize)
+	owner.add_trait(TRAIT_MUTE, "trance")
+	if(!owner.has_quirk(/datum/quirk/monochromatic))
+		owner.add_client_colour(/datum/client_colour/monochrome)
+	owner.visible_message("[stun ? "<span class='warning'>[owner] stands still as [owner.p_their()] eyes seem to focus on a distant point.</span>" : ""]", \
+	"<span class='warning'>[pick("You feel your thoughts slow down...", "You suddenly feel extremely dizzy...", "You feel like you're in the middle of a dream...","You feel incredibly relaxed...")]</span>")
+	return TRUE
+
+/datum/status_effect/trance/on_creation(mob/living/new_owner, _duration, _stun = TRUE)
+	duration = _duration
+	stun = _stun
+	. = ..()
+
+/datum/status_effect/trance/on_remove()
+	UnregisterSignal(owner, COMSIG_MOVABLE_HEAR)
+	owner.remove_trait(TRAIT_MUTE, "trance")
+	owner.dizziness = 0
+	if(!owner.has_quirk(/datum/quirk/monochromatic))
+		owner.remove_client_colour(/datum/client_colour/monochrome)
+	to_chat(owner, "<span class='warning'>You snap out of your trance!</span>")
+
+/datum/status_effect/trance/proc/hypnotize(datum/source, message, atom/movable/speaker, message_language, raw_message, radio_freq, list/spans, message_mode)
+	if(!owner.can_hear())
+		return
+	if(speaker == owner)
+		return
+	var/mob/living/carbon/C = owner
+	C.cure_trauma_type(/datum/brain_trauma/hypnosis, TRAUMA_RESILIENCE_SURGERY) //clear previous hypnosis
+	addtimer(CALLBACK(C, /mob/living/carbon.proc/gain_trauma, /datum/brain_trauma/hypnosis, TRAUMA_RESILIENCE_SURGERY, raw_message), 10)
+	addtimer(CALLBACK(C, /mob/living.proc/Stun, 60, TRUE, TRUE), 15) //Take some time to think about it
+	qdel(src)
diff --git a/code/modules/goonchat/browserassets/css/browserOutput.css b/code/modules/goonchat/browserassets/css/browserOutput.css
index fe90e8a333e..0451c45069a 100644
--- a/code/modules/goonchat/browserassets/css/browserOutput.css
+++ b/code/modules/goonchat/browserassets/css/browserOutput.css
@@ -393,6 +393,13 @@ h1.alert, h2.alert		{color: #000000;}
 .redtext				{color: #FF0000;	font-size: 24px;}
 .clown					{color: #FF69Bf;	font-size: 24px; font-family: "Comic Sans MS", cursive, sans-serif; font-weight: bold;}
 .his_grace				{color: #15D512;	font-family: "Courier New", cursive, sans-serif; font-style: italic;}
+.hypnophrase			{color: #0d0d0d;	font-weight: bold; animation: hypnocolor 1500ms infinite;}
+@keyframes hypnocolor {
+    0% { color: #0d0d0d; }
+    25% { color: #410194; }
+    50% { color: #7f17d8; }
+		75% { color: #410194; }
+}
 
 .icon 					{height: 1em;	width: auto;}
 
diff --git a/code/modules/mob/living/carbon/say.dm b/code/modules/mob/living/carbon/say.dm
index f6e43f487f4..2c12a0d7995 100644
--- a/code/modules/mob/living/carbon/say.dm
+++ b/code/modules/mob/living/carbon/say.dm
@@ -39,10 +39,8 @@
 	else
 		. = initial(dt.flags) & TONGUELESS_SPEECH
 
-/mob/living/carbon/Hear(message, atom/movable/speaker, datum/language/message_language, raw_message, radio_freq, list/spans, message_mode)
-	. = ..()
-	if(!client)
-		return
+/mob/living/carbon/hear_intercept(message, atom/movable/speaker, datum/language/message_language, raw_message, radio_freq, list/spans, message_mode)
 	for(var/T in get_traumas())
 		var/datum/brain_trauma/trauma = T
-		message = trauma.on_hear(message, speaker, message_language, raw_message, radio_freq)
\ No newline at end of file
+		message = trauma.on_hear(message, speaker, message_language, raw_message, radio_freq)
+	return message
diff --git a/code/modules/mob/living/say.dm b/code/modules/mob/living/say.dm
index 5ed5534e993..49edbfe81de 100644
--- a/code/modules/mob/living/say.dm
+++ b/code/modules/mob/living/say.dm
@@ -228,9 +228,13 @@ GLOBAL_LIST_INIT(department_radio_keys, list(
 
 	// Recompose message for AI hrefs, language incomprehension.
 	message = compose_message(speaker, message_language, raw_message, radio_freq, spans, message_mode)
+	message = hear_intercept(message, speaker, message_language, raw_message, radio_freq, spans, message_mode)
 	show_message(message, 2, deaf_message, deaf_type)
 	return message
 
+/mob/living/proc/hear_intercept(message, atom/movable/speaker, datum/language/message_language, raw_message, radio_freq, list/spans, message_mode)
+	return message
+
 /mob/living/send_speech(message, message_range = 6, obj/source = src, bubble_type = bubble_icon, list/spans, datum/language/message_language=null, message_mode)
 	var/static/list/eavesdropping_modes = list(MODE_WHISPER = TRUE, MODE_WHISPER_CRIT = TRUE)
 	var/eavesdrop_range = 0
diff --git a/interface/stylesheet.dm b/interface/stylesheet.dm
index 5eb4a355766..bca391f6539 100644
--- a/interface/stylesheet.dm
+++ b/interface/stylesheet.dm
@@ -153,6 +153,13 @@ h1.alert, h2.alert		{color: #000000;}
 .redtext				{color: #FF0000;	font-size: 3;}
 .clown					{color: #FF69Bf;	font-size: 3; font-family: "Comic Sans MS", cursive, sans-serif; font-weight: bold;}
 .his_grace				{color: #15D512;	font-family: "Courier New", cursive, sans-serif; font-style: italic;}
+.hypnophrase			{color: #3bb5d3;	font-weight: bold; animation: hypnocolor 1500ms infinite;}
+@keyframes hypnocolor {
+    0% { color: #0d0d0d; }
+    25% { color: #410194; }
+    50% { color: #7f17d8; }
+	75% { color: #410194; }
+}
 
 .icon 					{height: 1em;	width: auto;}
 
diff --git a/tgstation.dme b/tgstation.dme
index c2f49a9d2a3..538006dcdbb 100755
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -318,6 +318,7 @@
 #include "code\datums\actions\beam_rifle.dm"
 #include "code\datums\actions\ninja.dm"
 #include "code\datums\brain_damage\brain_trauma.dm"
+#include "code\datums\brain_damage\hypnosis.dm"
 #include "code\datums\brain_damage\imaginary_friend.dm"
 #include "code\datums\brain_damage\mild.dm"
 #include "code\datums\brain_damage\phobia.dm"