No More Room in Hell is a co-op survival horror shooter developed by Lever Games. It started as a Half-Life 2 mod in 2011 and launched as a standalone, free-to-play game on Steam in 2013, built on the Source engine. Up to eight survivors band together against a slow, relentless zombie outbreak where every shot and every footstep counts.
The game leans hard into realism. Ammo is scarce, friendly fire is always on, and a single bite can infect you and turn you against your own crew. There is no mid-round respawn, so one careless push can end a run. Players work through Objective maps to escape the outbreak or dig in for Survival mode and hold the line against endless waves.
Sessions swing from quiet, white-knuckle scavenging to frantic last stands when the horde finally breaks through. A deep library of Steam Workshop maps and community campaigns keeps the rotation fresh for months. Running your own dedicated No More Room in Hell server means your crew sets the difficulty, the map list, and the rules, with the world ready whenever someone logs on.
The community keeps No More Room in Hell alive through Steam Workshop. Custom Objective and Survival maps, total-conversion campaigns, and reworked weapon packs all install cleanly on a dedicated server. Popular community maps add fresh routes, new escape scenarios, and tougher horde pacing than the base map roster.
As a Source engine game, No More Room in Hell leans on single-core CPU performance for a smooth server tick rate when the screen fills with infected. NVMe storage keeps map loads and Workshop downloads fast, and a few gigabytes of RAM comfortably cover a full eight-player session.
| Server type | RAM needed | Players | Recommended plan |
|---|
| Small co-op | 2 GB | Up to 4 | 2 GB plan |
| Standard server | 4 GB | Up to 6 | 4 GB plan |
| Full server | 8 GB | Up to 8 | 8 GB plan |
Running No More Room in Hell on a dedicated server hands your group full admin control. Set friendly fire, difficulty, and the map cycle, whitelist your crew, and keep custom Workshop maps loaded around the clock. No host has to stay online for the rest of the squad to keep playing.
PingPlayers pairs that control with high-frequency hardware, NVMe storage, and enterprise DDoS protection, so your server stays smooth when the outbreak peaks. Ping AI handles setup, config questions, and Workshop map installs by chat, so your crew spends time surviving instead of wrestling with server files.
