The full version is generally a paid product available on Steam and other digital storefronts.
It is important to distinguish between free updates and the full game download: operation-sandstorm-pc-game-free-download-full-version
Players who own the game on older consoles (PS4/Xbox One) can download the Gen 9 update for PS5 and Xbox Series X|S at no extra cost. The full version is generally a paid product
The game you are likely referring to is , a tactical team-based first-person shooter. While the game itself is typically a paid title, it frequently offers free content updates —often titled "Operations"—to all owners of the base game. Understanding "Free" Availability operation-sandstorm-pc-game-free-download-full-version