diff --git a/code/game/gamemodes/cult/ritual.dm b/code/game/gamemodes/cult/ritual.dm
index 069a422480..e292cf5ab3 100644
--- a/code/game/gamemodes/cult/ritual.dm
+++ b/code/game/gamemodes/cult/ritual.dm
@@ -225,7 +225,10 @@ This file contains the arcane tome files.
 						 "<span class='cult'>You [user.blood_volume ? "slice open your arm and ":""]begin drawing a sigil of the Geometer.</span>")
 	if(user.blood_volume)
 		user.apply_damage(initial(rune_to_scribe.scribe_damage), BRUTE, pick("l_arm", "r_arm"))
-	if(!do_after(user, initial(rune_to_scribe.scribe_delay), target = get_turf(user)))
+	var/scribe_mod = initial(rune_to_scribe.scribe_delay)
+	if(istype(get_turf(user), /turf/open/floor/engine/cult))
+		scribe_mod *= 0.5
+	if(!do_after(user, scribe_mod, target = get_turf(user)))
 		for(var/V in shields)
 			var/obj/structure/emergency_shield/sanguine/S = V
 			if(S && !QDELETED(S))
diff --git a/code/game/gamemodes/cult/rune_spawn_action.dm b/code/game/gamemodes/cult/rune_spawn_action.dm
index 7412a5d6bb..119d507a5e 100644
--- a/code/game/gamemodes/cult/rune_spawn_action.dm
+++ b/code/game/gamemodes/cult/rune_spawn_action.dm
@@ -46,7 +46,10 @@
 	if(damage_interrupt && isliving(owner))
 		var/mob/living/L = owner
 		health = list("health" = L.health)
-	if(do_after(owner, scribe_time, target = owner, extra_checks = CALLBACK(owner, /mob.proc/break_do_after_checks, health, action_interrupt)))
+	var/scribe_mod = scribe_time
+	if(istype(get_turf(owner), /turf/open/floor/engine/cult))
+		scribe_mod *= 0.5
+	if(do_after(owner, scribe_mod, target = owner, extra_checks = CALLBACK(owner, /mob.proc/break_do_after_checks, health, action_interrupt)))
 		var/obj/effect/rune/new_rune = new rune_type(owner.loc)
 		new_rune.keyword = chosen_keyword
 	else