Level 13: Vitrum Madness, Backrooms: A Complete guide

Steam Community :: Guide :: 100% Achievement/Walkthrough and Collectibles Guide (Grassroom Update)

The Backrooms: Level's 13-50 explained

Level 10: The Bumper Crop/Field of Wheat, Backrooms: A Complete guide

ゆっくり解説】「Level 13: Vitrum Madness」について【The Backrooms】

Level 13?, Backrooms Wiki

Level 0: The Lobby/Tutorial, Backrooms: A Complete guide

Found what I believe is 'Level 13' after I no-clipped out of Level 7 : r/ backrooms

Partygoers =), Backrooms: A Complete guide

The REAL “first” Backrooms Level…

The unseen parts of level 13 : r/backrooms

The Backrooms: Level's 13-50 explained

☂️ Level 13: Vitrum Madness 🏡(ガラスの狂気), Backrooms Wiki