Black Ops Zombies: Backrooms

Round-based Black Ops III Zombies in Backrooms: Escape Together's levels, played in Garry's Mod.

• Four levels in Backrooms' order: Level 0, Level 1, Level 3, Level 2.
• Beat each level's round, finish its Backrooms objectives and solve its puzzle (VHS code, breakers, fuses, pressure dials) to escape.
• Lights Out and the Alarm: Smilers in the dark, and an unkillable Bacteria that hunts you until you hide in a cubby.
• Play the numbered hazmat survivors with emotes, a whistle and the camcorder.
• Black Ops III music, announcer, perks, Mystery Box, power-ups and zombie sounds.
• Start menu with room codes, and proximity voice chat.

Needs Garry's Mod, Backrooms: Escape Together and Black Ops III on Steam. Nothing from either game is included: the first Play converts what it needs from your own copies (about a minute, once).