: If you want the save to appear in a specific in-game slot, rename the file to slot-a.bin slot-b.bin (Slot 2), etc. Common Fixes
: Community-verified guides like the PROTOTYPE 100% SAVEGAME on Steam Community offer direct links to save collections . prototype 1 save game 100 download
| Problem | Solution | | :--- | :--- | | | The save file is for the Russian/European version. Look for a "US/Steam Unlocked" version. | | Steam Cloud interference | You did not disable Steam Cloud before launching. Delete the local save, disable Cloud, and re-copy the file. | | Save slot mismatch | The game only recognizes savegame0.bin for Slot 1, but you pasted savegame1.bin . Rename the file accordingly. | | Anti-virus quarantine | Your AV deleted the save thinking it was a threat (false positive). Restore it and add the save folder to exclusions. | | Windows User Account Control (UAC) | The save folder is marked "Read Only." Right-click the folder > Properties > Uncheck "Read Only" > Apply. | : If you want the save to appear
Nearly two decades after its release, remains a cult classic in the open-world action genre. Playing as Alex Mercer—a shapeshifter with god-like powers—is exhilarating. However, the grind to unlock every mutation, consume every hidden web of intrigue target, and complete all Platinum events can be brutally time-consuming. Look for a "US/Steam Unlocked" version
Installing a downloaded save is straightforward, but you must place it in the correct directory for the game to recognize it. Step 1: Locate Your Save Folder