Hello,
I verified game cache integrity and game don't work better.
My drivers are up to date (Geforce 353.30).
I don't know if theses informations can help, but the game worked for me in the same PC in the past. I didn't play to it since approximately 1 month and since :
- I upgraded my GPU (GTX770 => GTX980TI).
- I moved the game to another drive (By un-installing and reinstalling it with Steam).
- The game was patched 1.0.6.
Thank for your awesome game!