Skeleton Krug Dogs are a hostile creature in Dungeon Siege.
These animated canine skeletons are not affiliated with the Krug. They are far stronger than living Krug Dogs and are encountered long after the player has moved past Krug-infested areas, in dry grasslands like Iliarth Canyon and the lands around Fortress Kroth, alongside higher-level skeleton warriors. Skeleton Krug Dogs are usually found in large packs and use that tactic to overwhelm adventurers with their jaws and teeth.
Level 61 combat mages can summon one to fight on their behalf.
Despite their appearance, they may still have internal organs intact; if dismemberment is turned on, they leave behind a cloud of red vapor when killed. This is likely an oversight.