Developer Undead Labs occasionally hosts "Free to Play Weekends" on Steam where the full game is downloadable and playable for a limited time, often accompanied by deep discounts if you choose to buy it afterward.
Pirated versions typically lack access to the official Xbox Live servers required for the game’s cooperative multiplayer features. Where to Buy Legally (Best Deals) state-of-decay-pc-game-free-download-full-version
State of Decay 2 receives frequent free content updates that pirated versions cannot easily access. Developer Undead Labs occasionally hosts "Free to Play
If you missed a free window, the games are often heavily discounted on official storefronts: If you missed a free window, the games
These downloads frequently bundle malware or spyware.
While "State of Decay" and its sequel are not permanently free titles, there are several legitimate ways to play the full versions on PC at no additional cost or through affordable trials. Official Ways to Play for Free