Mon Yu is a first-person dungeon-crawling RPG in which players build a party of adventurers and delve into monster-filled labyrinths. Defeating enemies to earn stronger weapons and armor is at the heart of its progression.

Players map out dungeon floors, fight turn-based battles, and steadily upgrade their party's gear and skills to push deeper. Its focus on exploration, loot, and character building appeals to fans of classic dungeon crawlers who enjoy a steady climb in power.