POWDER is a roguelike game, which is not a port of an existing roguelike. It is built around replayability and long term ergonomics, not short term learning. Author of this piece of software is Jeff Lait. Official page: http://www.zincland.com/powder/index.php?pagename=release

Simon Parzer has released a bugfixed version, as the original release was not working, you may grab it at the GP32x boards linked below.