I was always told that this was essentially a free BO1 and 2 Zombies mod, but it seems i was wrong and you have to own the games on steam prior. I already own BO2 and 3, and i thought i could use this to play BO1 for free but it seems i was wrong. What is the difference between Plutonium and steam?
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WeedNose21
@WeedNose21