From GameBrew - a wiki dedicated to Video Game Homebrew.
First Age Angband. It’s a roguelike game, a variant of Oangband, which in turn is a variant of Angband.
Different from Oangband, there are new varieties of Elves, Dwarves and Men. Dwarves as a whole tend to have better Intelligence than Wisdom; the reverse is true for (most) Elves and Hobbits. Different races also have significantly different starting conditions.
There are multiple towns, small and large, spread throughout the wilderness. Each race starts in its natural town.
There are multiple dungeons (five, to be precise). At the bottom of each is a guardian, who can only appear there or in special circumstances (which you may be able to guess...) be summoned. The first specialist ability (and second as well for warriors) is still learned at the beginning, but the two others each become available on killing a dungeon guardian. It is possible to ignore the other dungeons and head straight for Angband, but there's a heavy price to pay.
Stylus - perform all controls by using the virtual keyboard