Chika Aruki is a first-person fantasy dungeon crawler featuring a clean anime cel-shaded art style. Players take on the role of a young, somewhat introverted heroine venturing into mysterious underground passages, ancient ruins, and forgotten locations teeming with enemies, treasures, and uncharted paths.

The game combines straightforward dungeon exploration, turn-based combat, and equipment collection. Every step could lead to a new room, a locked door, a branching path, a reward chest, or a dangerous foe. The goal is not merely to fight but to survive, make the right choices, and gradually uncover what lies hidden in the depths.

Visually, the game employs a bright fantasy anime aesthetic—characterized by clean cel-shading, stone corridors, and magical lighting—complemented by a clear, intuitive UI inspired by classic dungeon crawlers.