Graveyard Keeper 2 Wikigraveyard keeper 2 free zombies
graveyard keeper 2 free zombies
No official source checked here confirms a feature formally named “free zombies.”
What the sources say
The official description mentions leading an undead army, and patch notes discuss resurrection and zombie work. Neither confirms a mechanic formally called “free zombies.”
What is still needed
The phrase could refer to a strategy or a misunderstood mechanic. An exact unlock method or cost needs reliable game-specific evidence.