While a lot of other games where "Required operating systems" Windows 8 this is not (simply because it is the the time when the game was published, did not exist), then still under Windows 8 and Windows 8.1 still running (as are but it is a very good backward compatibility between versions of Windows), which is in "Battle vs. Chess" is definitely not the case. This really works only on Windows 7 or older! I write this mainly because I. From above reasons often a game in which "Windows 8" is not about to buy anyway, trusting to luck, and mostly it works then eh but also in Windows 8 or 8.1 Therefore, caution: In "Battle vs. Chess" is not that!