When I try to launch the game through either Uplay or Steam I get a steam error, and it doesn't launch. All it tells me is unknown error. The game was working fabulously for more than a year before this problem appeared, and I have put many hours into it. I have tried to Verify the integrity of the game cache through steam, I have uninstalled and reinstalled the game, I have uninstalled and reinstalled Uplay, and I tried a solution Steam support gave me for missing executables, but to no avail. Nothing has worked. This started probably in early April, maybe? I don't have a specific date, but it's been a few months. I'm running Windows 7 Ultimate. I just want to be able to play the game.
