You saw Minecraft and moved on and made a game made inside a game engine, did you knew coding before backrooms level building Minecraft stuff?
Anyways, to escape Level 0, you'll have to noclip to Level 1, noclipping can be stressful and painful, but once you've got the hang of it, you can surely noclip to other levels in no time!
Like the game btw.
- Jacek86 (Formally Mr. Backrooms Man, or TheBackroomsMasters on Wikidot)