diff --git a/code/modules/mob/living/simple_animal/hostile/giant_spider.dm b/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
index 421c15f9969..628e6da3eb2 100644
--- a/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
+++ b/code/modules/mob/living/simple_animal/hostile/giant_spider.dm
@@ -83,7 +83,7 @@
 	melee_damage_lower = 15
 	melee_damage_upper = 20
 	armor_penetration = 30
-	venom_per_bite = 1
+	venom_per_bite = 8
 	speed = -2
 	venom_type = /singleton/reagent/toxin/greimorian_eggs
 	fed = 1
diff --git a/code/modules/organs/subtypes/parasite/greim_eggs.dm b/code/modules/organs/subtypes/parasite/greim_eggs.dm
index c3c4d082906..e71ac588787 100644
--- a/code/modules/organs/subtypes/parasite/greim_eggs.dm
+++ b/code/modules/organs/subtypes/parasite/greim_eggs.dm
@@ -8,8 +8,8 @@
 	parent_organ = BP_CHEST
 	subtle = 1
 
-	/// ~3 minutes/stage (at two seconds/tick)
-	stage_interval = 90
+	/// ~4 minutes/stage (at two seconds/tick)
+	stage_interval = 120
 
 	max_stage = 5
 
@@ -44,25 +44,25 @@
 		to_chat(affecting_organ.owner, SPAN_NOTICE("Your [affecting_organ.name] itches."))
 
 	if(prob(33))
-		owner.adjustNutritionLoss(3)
+		owner.adjustNutritionLoss(2)
 
 	if(stage >= 2)
-		if(prob(8))
+		if(prob(6))
 			gestating_spiderlings += 1
 
 		if(prob(33))
-			owner.adjustNutritionLoss(4)
+			owner.adjustNutritionLoss(3)
 		if(prob(5))
 			owner.emote("whimper")
 		if(prob(2))
 			to_chat(owner, SPAN_WARNING(pick("You feel nauseous and hungry at the same time.", "You feel a burning pain in your [parent_organ].", "Your sense of balance seems broken.")))
 
 	if(stage >= 3)
-		if(prob(6))
+		if(prob(4))
 			gestating_spiderlings += 1
 
 		if(prob(33))
-			owner.adjustNutritionLoss(5)
+			owner.adjustNutritionLoss(4)
 		if(prob(10))
 			affecting_organ.take_damage(rand(1,3))
 			owner.adjustHalLoss(8)
@@ -75,11 +75,10 @@
 			owner.seizure(0.4)
 
 	if(stage >= 4)
-		if(prob(6))
+		if(prob(5))
 			gestating_spiderlings += rand(1,2)
 
 		if(prob(5))
-			owner.reagents.add_reagent(/singleton/reagent/toxin/greimorian_eggs, (gestating_spiderlings / 3))
 			owner.adjustHalLoss(12)
 			to_chat(owner, SPAN_WARNING(pick("A sharp, caustic pain boils out from your [affecting_organ.name]!", "You can feel the flesh of your [affecting_organ.name] beginning to bulge!", "It's going to burst! Your [affecting_organ.name] is going to burst!")))
 		if(prob(5))
@@ -91,7 +90,7 @@
 
 		if(prob(10))
 			owner.seizure(0.6)
-		if(prob(5))
+		if(prob(4))
 			ruptured = TRUE
 			owner.adjustHalLoss(75)
 			owner.seizure()
diff --git a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Toxins.dm b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Toxins.dm
index c953e8cb416..a414dcd4f89 100644
--- a/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Toxins.dm
+++ b/code/modules/reagents/Chemistry-Reagents/Chemistry-Reagents-Toxins.dm
@@ -1054,28 +1054,31 @@
 
 		victim.add_chemical_effect(CE_PULSE, -2)
 		var/dose = victim.chem_doses[type]
-		if(dose > 2)
+		if(dose > 2) // at least 1 bite
 			if(ishuman(victim) && (dose == metabolism * 2 || prob(3)))
 				victim.emote("yawn")
-		if(dose > 20)
+		if(dose > 10) // at least 3 bites
 			victim.eye_blurry = max(victim.eye_blurry, 10)
-		if(dose > 40)
+		if(dose > 18) // at least 5 bites
 			victim.Weaken(1)
 			victim.drowsiness = max(victim.drowsiness, 20)
 
 		if(victim.chem_effects[CE_ANTIPARASITE])
 			return
 
-		if(!victim.internal_organs_by_name[BP_GREIMORIAN_EGGCLUSTER] && prob(20))
-			var/obj/item/organ/external/affected = pick(victim.organs)
-			if(BP_IS_ROBOTIC(affected))
-				return
-			// Give the victim an extra chance to NOT get an eggsac in their head; reroll. Ditto mechanical limbs.
-			if(affected == BP_HEAD)
-				affected = pick(victim.organs)
-			var/obj/item/organ/internal/parasite/greimorian_eggcluster/infest = new()
-			infest.parent_organ = affected.limb_name
-			infest.replaced(victim, affected)
+		if(dose > 10) // at least 3 bites
+			if(!victim.internal_organs_by_name[BP_GREIMORIAN_EGGCLUSTER] && prob(20))
+				var/obj/item/organ/external/affected = pick(victim.organs)
+				if(BP_IS_ROBOTIC(affected))
+					return
+				// Give the victim an extra chance to NOT get an eggsac somewhere that will insta-kill them; reroll. Ditto mechanical limbs.
+				if(affected == BP_HEAD || affected == BP_CHEST || affected == BP_GROIN)
+					affected = pick(victim.organs)
+				var/obj/item/organ/internal/parasite/greimorian_eggcluster/infest = new()
+				infest.parent_organ = affected.limb_name
+				infest.replaced(victim, affected)
+
+				victim.chem_doses[type] = dose / 2
 
 /singleton/reagent/toxin/malignant_tumour_cells
 	name = "Malignant Tumour Cells"
diff --git a/html/changelogs/Bat-GreimEggs.yml b/html/changelogs/Bat-GreimEggs.yml
new file mode 100644
index 00000000000..a5b9febd397
--- /dev/null
+++ b/html/changelogs/Bat-GreimEggs.yml
@@ -0,0 +1,8 @@
+author: Batrachophrenoboocosmomachia
+delete-after: True
+changes:
+  - balance: "Extends minimum time to organ rupture due to Greimorian egg implantation by 33%."
+  - balance: "Adds chest and groin organ choice in Greimorian egg implantation to reroll chance target, like head, to reduce effectively-end-your-round chance."
+  - balance: "Removes egg spread chance from Greimorian egg implantation stage 4."
+  - balance: "Minor other adjustments to Greimorian egg behavior (ensures increased duration does not increase final larva count, etc.)"
+  - balance: "Gives Greimorian Servant (playable worker) greater venom per bite than standard workers."