Sigmore Mines is a graphical roguelike for mobile phones with elements based on PC game "Diablo". You are in control of warrior, mage or archer. As you are descending deeper into the dungeon, you gain experience, became stronger, find new magical weapons. Read quest tomes which give you quests.
Midp 2.0 and CLDC 1.0 or CLDC 1.1 Compatible phone.
Screen size 176x220 is recommendend, but not necessary.