Got this for free last week and was finally able to run on Win7 today. After trial and error discovered I needed to manually adjust screen to 16 bit color depth and 800x600 resolution in order for game to be visible. Otherwise just a black screen with game sounds. Haven't tried this game on Win10 yet but assume that the launcher is able to access required screen mode without user intervention? To the game - was an OK looking game for 1999 but obviously graphics engine was already somewhat dated when this launched. So looks more like something from '95-'96 era than '99 (for comparison first installment of Age of Wonders launched in '99 and Diablo II in 2000). Despite this, the Warhammer 40,000 universe setting, turned-based play and decent game mechanics all help make Rites of War a fun walk down memory lane for me. While I would regard it was a pretty minor entry in the history of the franchise would still recommend to fans of Warhammer games and certainly anyone looking for a little nostalgia from GOG.
