The game will run fine for a random amount of time before the fps drops. While the fps drops ill start experiencing artifacting and eventually the game will become unplayable.
Reproduction
The problem can be replicated by leaving the game window, such as browing or using the steam overlay.
Compatibility Report
System Information
I confirm:
steam-1240440.log
Symptoms
The game will run fine for a random amount of time before the fps drops. While the fps drops ill start experiencing artifacting and eventually the game will become unplayable.
Reproduction
The problem can be replicated by leaving the game window, such as browing or using the steam overlay.