A free app for Android, by Vast Digital Space.

A classic dungeon-crawler with a new twist! Choose from four different classes – Warrior, Rogue, Wizard, or Monk – and enter the dungeon. Each dungeon has a unique boss, and you will need to use your skills to defeat them. You will also find loot and items in the dungeon, so you can gain new weapons and armor. The loot will help you to craft new weapons and armor. You will also be able to buy new weapons and armor in the shop. The game has a very easy to use interface, so it’s easy to play. You can even play the game on your phone.