Nihon Falcom’s Gurumin: A Monstrous Adventure, which was originally released in Japan for PC on 2004. However, like many of Falcom’s games, the game later made it into the PSP in 2006 in Japan and 2007 in North America.
Last year however, Mastiff submitted Gurumin: A Monstrous Adventure up for voting on Steam Greenlight, and now the game is available on Steam. Those who voted for the game on Greenlight and then joined the Gurumin Steam group were rewarded with a free copy. If you missed that fantastic deal, you can still buy the game for 10^% off.
Like any other Steam game, this game will have Steam Cards as well nine super-secret achievements that, once unlocked, will award you with a wallpaper you can use to on your desktop.