- Pixel Backrooms, ported from the browser game to s&box

- Levels 0 to 20, then endless generated levels with their own realities (dream, corrupted, machine, void and more)

- 18 kinds of entities that see, hear, chase and search for you

- Survival: health, stamina, flashlight battery, hunger, thirst, sanity, temperature, corruption and radiation

- Keycards, generators, documents, artifacts, rare rooms and reality portals

- Shop, skills, research, factions, quests, achievements, a codex and stats

- Sounds: synthesized like the original, plus a few from the s&box library

- Realistic lighting and materials, with a Retro Pixel style option in Settings