I play on a PC: windows 7 SP 1 64 bit with AMD FX 8120 3.10 GHZ processor, 8 GB ram, and AMD Raedon HD 7700 series graphics card. I have double checked that my drivers are up to date. I have tried the game on 1920x1080, which is also my native display setting, as well as 1600x900, all have been full screen. The game runs fine until an invasion occurs. The villagers and soldiers begin the fight, but when the progress bar is about 1/2 gone the game crashes. All three crashes have occurred in this manner, first two were soldier invasion, last was cult invasion. The second crash occurred using the same save file as the first, the third was a fresh game file and lower resolution but game still crashed during invasion. I am greatly enjoying the game so far! Just need to be able to get past invasions to have a chance to actually build up my settlement.