https://zfplay.itch.io/the-exit-of-nightmare

The Exit of Nightmare is a psychological horror game with collection and puzzle elements. You're trapped in nightmare world and your goal is to find your way back to reality.

You wake up in a strange building and you're not supposed to be here. There were no doors and windows in the building, and only one elevator leading to an unknown floor. Each of floor offers a unique environment and puzzle to discover.