While splitting up can help you find items faster, staying in pairs reduces the "sweep angle" you need to cover with flashlights.
Use bandages to revive fallen friends. Ensure the area is safe or "box yourself in" by closing doors before starting the revive process, as it takes time. A Backrooms Escape Together online
Surviving the Liminal Labyrinth: A Guide to Backrooms: Escape Together While splitting up can help you find items
In multiplayer, the number of required items (like VHS tapes or fuses) increases based on player count. A Backrooms Escape Together online
Sanity slowly drains over time. You must find food items like almond water or rice crackers to stay grounded. Survival Strategies for Multiplayer