Python roguelike using libtcod.
From http://roguecentral.org/doryen/libtcod/:
libtcod, a.k.a. “The Doryen Library”, is a free, fast, portable and uncomplicated API for roguelike developers providing an advanced true color console, input, and lots of other utilities frequently used in roguelikes.
See the full list of features on the features page.
Only OS X is supported for now using https://github.com/podiki/libtcod-mac, but libtcod can also be built on Windows and Linux.