Using tags like backroom level:

level-1, Habitable Zone

level-2, Pipe Dreams

level-4, Abandoned Office

level-9, The Suburbs

level-13, The Infinite Apartments

level-15, Futuristic Halls

level-33, The Infinite Mall

level-37, Sublimity

level-190, School Detention

level-423, The Gas Station

Tags to spawn special structure:

infinity corridor, large space

Best Setting:[CFG:3~4, LoRA Strength:0.4~0.6]

This is a LoRA model, you will need new version Automatic's 1111 SD-WebUI or additional-networks extension