Orcs Must Die! 50% off at OnLive, OnLive UK (PC Only) By w00py | January 31, 2012 0 Comment Orcs Must Die! is on sale for 50% off at OnLive and OnLive UK. This game is for PC and not playable on Touch devices (Android / iPad). The game is pretty awesome and has an 84/100 metascore. It’s a 3rd person tower defense game.