Pixel Dungeon

Pixel Dungeon
Stable game
Developer	Watabou
Theme	Fantasy
Influences	Brogue
Released	Dec 04, 2012 (0.1)
Updated	Sep 04, 2015 (1.9.1)
Licensing	GPL, freeware
P. Language	Java
Platforms	Android,iOS,Windows,Mac OS X,Linux
Interface	pixel-art graphics, simple animation, touch interface
Game Length	short
	Official site of Pixel Dungeon

Pixel Dungeon is a coffeebreak roguelike

Pixel Dungeon is a traditional roguelike game with pixel-art graphics and simple interface for Android devices (https://play.google.com/store/apps/details?id=com.watabou.pixeldungeon).

There is also a desktop version (Windows/Mac/Linux) of Pixel Dungeon (http://watabou.itch.io/pixel-dungeon).
Since May 29, 2015 it is available on Steam (http://store.steampowered.com/app/365900/).
Since Jun 17, 2015 it is available on App Store (https://itunes.apple.com/app/pixel-dungeon/id1002210090/).

Features

Pixel-art graphics
Simple touch interface
25 randomly generated levels (sewers, abandoned prison, caves, dwarven metropolis & demon halls)
Various dungeon features (incl. hidden and locked doors, traps, chasms, chests etc.)
25 types of monsters + 5 bosses
80+ types of items (incl. armor, weapons, potions, wands etc.)
4 Character classes: Warrior, Mage, Rogue & Huntress
Specializations (sub-classes), 2 for each class
Enchanted weapons
Inscribed armors
Alchemy
Shops
NPCs and simple quests
Music & sound fx
Rankings (high scores)
Badges (achievements)

Pixel Dungeon is open source, license: GPLv3 https://www.gnu.org/licenses/gpl-3.0.en.html