I found a game in the Appstore called Kiloblocks lite and I built a a under ground house in the game

Kiloblocks Lite Gameplay Walkthrough #1 (Android, IOS)

Kiloblocks Lite | iOS/Android Mobile Gameplay (2019)

Kiloblocks lite (#4) Lava walkaway

Best Underground House in Kiloblocks Lite Part - 1

Kiloblocks lite (#1)

Underground Home in Kiloblocks Lite

Double story house in kiloblocks lite