diff --git a/mods/d2k/rules/campaign-rules.yaml b/mods/d2k/rules/campaign-rules.yaml
index b5cc2df88a..46c72a6a8e 100644
--- a/mods/d2k/rules/campaign-rules.yaml
+++ b/mods/d2k/rules/campaign-rules.yaml
@@ -30,7 +30,7 @@ World:
 	ObjectivesPanel:
 		PanelName: MISSION_OBJECTIVES
 	ActorSpawnManager:
-		Minimum: 1
+		Minimum: 0
 		Maximum: 1
 	MapCreeps:
 		CheckboxVisible: False
@@ -60,5 +60,9 @@ World:
 	GrantConditionOnBotOwner@BOTOWNER:
 		Bots: campaign
 
+sandworm:
+	Sandworm:
+		ChanceToDisappear: 40
+
 harvester:
 	-MustBeDestroyed: