We just released a fresh trailer for Entropy, a first-person puzzle game for XBLIG (and PC later this year, the exact date will soon be announced). The game is set to be released on XBLIG as part of the Indie Uprising III on September 17th 2012.
Check out our IndieDB page for more information. You're probably used to hearing this these days but please support us on Steam Greenlight, too! :-)
Enjoy! Any feedback is highly appreciated, don't be shy.