Excave sounds like a great idea. I like the idea of roguelikes (I love exploration), but I’ve never liked the crushing difficulty that often comes with them. Fortunately, Excave is designed to be an entry point into the genre for newcomers, with a much tamer difficulty level while still maintaining traditional elements of the genre. For instance, like most roguelikes, your weapons and armor degrade with use. However, in Excave, repairs are as simple as going to town, for which there is no penalty (a good thing too, since the game will apparently generate dead ends occasionally).
Excave is a 3DS game by Japanese developer Mechanic Arms. It will be released on the Japanese eShop November 27th for ¥700. The game looks interesting, so I hope someone will localize it for a Western release.