Unturned Dedicated Server Hosting: Hardware Specs, Setup, and Optimization for 2026

Unturned is easy to dismiss as “the free zombie game,” but its dedicated server is a real workload with specific quirks. The good news: it is far lighter than ARK or Rust, so a modest dedicated server handles a full 24-player vanilla server with room to spare. The catch: modded servers with Rocket or OpenMod, large curated maps, and 100-player communities scale RAM and CPU requirements faster than most hosts expect. This guide covers the hardware you need, the setup path, and the configuration options that keep a server stable for months.

Because Unturned servers are so light at the low end, many owners start on a shared VPS and hit resource caps the moment they add mods. If you are planning a public server, start from the hardware you will need in six months, not what works for a weekend with friends. Our comparison table shows dedicated plans with the CPU and RAM tiers that give Unturned headroom for plugins and player growth.

How Unturned Servers Actually Use Resources

Unturned’s dedicated server is built on Unity and runs a single main loop. That means single-thread performance matters more than core count — a modern 4-core CPU at 4+ GHz will outperform an older 8-core Xeon for a single instance. RAM scales with map size, player count, and mods: the stock PEI map with 24 players sits around 3–5 GB, while a modded 100-player server on a large workshop map easily needs 10–16 GB. Bandwidth is light — expect roughly 50–150 KB/s per player, so a 100-player server peaks around 15–30 Mbps plus overhead.

Server Type	CPU	RAM	Storage	Bandwidth
Vanilla, 24 players	4 cores @ 4.0+ GHz	8 GB	120 GB SSD	100 Mbps
Vanilla, 50 players	4–6 cores @ 4.0+ GHz	12 GB	250 GB SSD	250 Mbps
Modded (Rocket/OpenMod), 50+ players	6 cores @ 4.0+ GHz	16 GB	500 GB NVMe	500 Mbps
100+ players / multiple maps	8 cores (i7/Ryzen 7 class)	32 GB	1 TB NVMe	1 Gbps

NVMe matters here more than the spec sheet suggests: Unturned streams map assets and saves world state periodically, and modded servers load hundreds of workshop items at startup. A SATA SSD works for vanilla, but modded servers restart much faster and save more smoothly on NVMe.

Installing the Server with SteamCMD

Unturned’s dedicated server is distributed through SteamCMD. On a fresh Ubuntu dedicated server, the install is straightforward:

# install steamcmd
sudo add-apt-repository multiverse && sudo apt update
sudo apt install steamcmd

# install the dedicated server (appid 1110390)
steamcmd +login anonymous +force_install_dir /home/unturned \
  +app_update 1110390 validate +quit

After the first run, the server generates a Servers/<instance>/Server/Config.json file plus Commands.dat. Key settings in Config.json:

{
  "Server_Name": "MyServer [PVP]",
  "Server_Description": "24/7 vanilla + Rocket",
  "Server_Password": "",
  "Max_Players": 24,
  "Port": 27015,
  "Cycle": 300,
  "Cheats": false,
  "Monetization": false
}

• Cycle is the autosave interval in seconds (default 300 = every 5 minutes). Lower it to 120–180 on busy servers to limit rollback loss; each save is a short disk write, so NVMe keeps it stutter-free.
• Max_Players above 24 requires the server browser “Advanced” settings and enough RAM — a 100-player modded server is a 16 GB job, not an 8 GB one.
• Workshop mods are added via Workshop_Download_Map and Workshop_Download_Item commands in Commands.dat, or via the Steam workshop ID list in Config.json for curated setups.

Rocket vs OpenMod for Plugins

Rocket is the long-standing modding framework for Unturned and still the most common choice in 2026; OpenMod is the newer, actively maintained alternative with a cleaner API. Both add permissions, kits, homes, and admin tools. From a server-owner perspective, the difference is plugin ecosystem: most mature plugins are Rocket, while new development has shifted toward OpenMod. Running either adds roughly 200–500 MB of RAM and a small CPU cost per tick — negligible on dedicated hardware, painful on a 2 GB VPS.

Keeping a Public Server Stable

• Backups: Unturned saves world state in Level/<map>/Server/ and player data in Players/. Back up the whole instance directory nightly with a tool like restic or rclone; a 10 GB instance compresses to 2–3 GB.
• Auto-restart: Unity-based servers leak memory over weeks. Schedule a nightly restart at 4–5 AM with a systemd timer — players accept scheduled restarts far better than midday crashes.
• Monitor: Track RAM, CPU, and player count with a lightweight agent (Netdata or Telegraf) and alert when memory climbs past 85%.
• DDoS: Unturned servers are UDP targets and attract booters once they top a server list. Use a provider with always-on UDP filtering or an upstream DDoS-protected IP; game-level mitigation is not optional for a public server.

Unturned rewards modest hardware more than any other survival game — a mid-range dedicated server runs a healthy public community with plugins, nightly restarts, and proper backups. InterServer’s dedicated plans start well above the vanilla requirement, so you get headroom for mods, bigger maps, and player growth without reordering hardware later. Check current InterServer dedicated configurations to price a 16 GB NVMe build for a 100-player modded Unturned server.

Start vanilla, confirm stability at 24 players, then add Rocket or OpenMod and workshop content one layer at a time — that sequence tells you exactly where your server’s ceiling is. When you are ready to scale past shared hosting, compare plans side by side on CPU clock speed, RAM, and NVMe to find a box that will still have headroom after the mods pile up.