whoops we'll get right on that (#31020)

code/modules/mob/living/simple_animal/hostile/giant_spider.dm

@@ -117,6 +117,7 @@
 	move_to_delay = 4
 	poison_type = "venom" //all in venom, glass cannon. you bite 5 times and they are DEFINITELY dead, but 40 health and you are extremely obvious. Ambush, maybe?
 	speed = 1
+	gold_core_spawnable = 0
 
 //tarantulas are really tanky, regenerating (maybe), hulky monster but are also extremely slow, so.
 /mob/living/simple_animal/hostile/poison/giant_spider/tarantula
@@ -134,6 +135,7 @@
 	speed = 7
 	status_flags = NONE
 	mob_size = MOB_SIZE_LARGE
+	gold_core_spawnable = 0
 
 /mob/living/simple_animal/hostile/poison/giant_spider/tarantula/movement_delay()
 	var/turf/T = get_turf(src)
@@ -153,6 +155,7 @@
 	maxHealth = 40
 	health = 40
 	var/datum/action/innate/spider/comm/letmetalkpls
+	gold_core_spawnable = 0
 
 /mob/living/simple_animal/hostile/poison/giant_spider/nurse/midwife/Initialize()
 	. = ..()