Farmageddon on 16 November 2011
I'm running it on a crappy Sempron 2800 with 1.5gb ddr400 ram, played for about 15 hours and I've had no crashes to desktop or any kind of major bug.
At first running in the world for a while would cause objects and textures to stop loading (simply saving and loading the would solve this), but starting the game from command line at high priority did away with that (as well as reducing the initial loading time at least ten-fold).
Besides, the game auto-saves all the time, you probably wouldn't loose more than 10 minutes from a major crash.
