Are you using the official Steam version or a different one?
Using unofficial "fix" files from RAR/ZIP archives (like "Subsistence_SteamFix.rar") can be risky. It is highly recommended to rely on Steam's built-in "Verify integrity of game files" feature or to seek support in the official Steam Community Forums to avoid malware or potential banning by anti-cheat systems. To make sure you get the right help, could you let me know: Subsistence_SteamFix.rar
If Steam fails to update or run the game, try clearing the download cache in Steam settings and verifying the game file integrity. Save File Management Are you using the official Steam version or a different one
Players have reported performance drops on specific Windows updates. A common fix is to use launch options in Steam to force DirectX 11 by adding -D3D11 in the game's properties. To make sure you get the right help,