Once upon a Dungeon is a roguelike game with dense atmosphere and challenging gameplay. Explore dark dungeons full of dreadful foes. Defeat them using physical power or mighty spells. Collect unique items, enhance your attributes and face the main antagonist – Fallen One.
The game has following features:
procedurally generated levels
permanent death (optionally)
tons of loot (plain, magic, unique)
quite a lot of different (look/behavior) monsters
Source: The Developer Website.