Underkeep

Underkeep's visual assets — character and monster sprites, traps, tiles, effects, UI art, and store artwork — were produced using generative AI image tools. The developer selected, adjusted, and quality-checked every asset before it went into the game.

The English and Spanish text was machine-translated from the original Korean.

Parts of the source code were written with an AI coding assistant, under the developer's direction and review.

Music and sound effects are not AI-generated. They are human-made CC0 assets from Kenney and OpenGameArt, and the in-game font (Galmuri) is a human-made open-source font.

Underkeep does not use generative AI while you play. The game runs fully offline and generates no content at runtime.