Today only, Call of Cthulhu: The Wasted Land for iPhone and iPad is available for free in the App Store. The turn-based strategy and role-playing game is based on the Call of Cthulhu RPG and focuses on a group of investigators and soldiers in World War One fighting to stay sane as they seek to defeat "an ancient enemy" (just a guess, it might be Cthulhu). The game usually retails for $4.99 on the app store, so be sure to grab it before the deal ends. If you don't have an iOS device, unfortunately the game isn't free, but you can still purchase it from Google Play or on PC.