: If you encounter errors, try disabling Windows Controlled Folder Access or "Protected Files" in Windows Defender, as it sometimes blocks the game from writing to your Documents folder.
In Prototype , "Hard Mode" is often unlocked only after completing the game once on a lower difficulty. For veteran gamers or those looking for a challenge, starting a fresh game on Hard Mode with all powers unlocked (or even just unlocking the mode itself) is a major draw. A 100% save file typically unlocks this difficulty setting immediately. prototype 1 100 save game