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ARK Dedicated Server: A Hands-On Setup Guide with SteamCMD
So you want your tribe to play ARK: Survival Ascended together on a world that stays alive whether you’re online or not. That’s exactly what a dedicated server gives you. In this guide we’ll stand one up from scratch using SteamCMD, wire up the ports, tune the config files, and make it restart itself so you’re not babysitting a terminal at 2 a.m.
Fair warning before we start: an ARK dedicated server is one of the heaviest game servers you’ll ever run. Keep that in the back of your mind as we go — it shapes almost every decision below.
Key Takeaways
• An ARK dedicated server is a persistent world your group connects to, running independently of any single player’s machine.
• You install it anonymously through SteamCMD using app ID 2430930 (ARK: Survival Ascended dedicated server).
• ARK is notoriously RAM-hungry — under-provisioned RAM is the number-one cause of lag and crashes.
• You’ll open UDP 7777 (game), a query port, and RCON (TCP) in your firewall.
• A systemd unit keeps the server alive, auto-restarting on crash and on reboot.
What is an ARK dedicated server?
A dedicated server is a standalone process that hosts the ARK game world. Unlike a non-dedicated (host-in-game) session, it doesn’t need a player logged in — the map, your bases, your tamed dinos, and the day/night cycle all keep running on the box 24/7. Your tribe simply connects over the network.
The trade-off is that *you* provide the horsepower. And ARK demands a lot of it. Survival Ascended is built on Unreal Engine 5, so the world simulation, creature AI, and structure tracking eat memory and CPU cycles continuously — even with nobody online.
Here’s the thing most first-time admins learn the hard way: ARK is RAM-hungry by design, and it gets hungrier with every mod and every loaded chunk of a populated map. The single most common cause of a laggy, rubber-banding, or outright crashing ARK server is *under-provisioned RAM*. When the server runs out of memory, it doesn’t fail gracefully — it stutters and dies exactly when a full lobby of players is online and the map is fully loaded. So provision generously, well above the bare minimum, especially if you plan to run mods. Treat RAM as your primary budget line, not an afterthought.
What are the system requirements for an ARK server?
There’s no single official number, but the practical ranges below reflect what a stable ARK: Survival Ascended server needs. More players, more mods, and larger maps push you toward the high end.
| Resource | Vanilla / small group | With mods / busy map |
|---|---|---|
| RAM | Substantial — high single-digit-to-low-double-digit GB | Significantly more; budget generously per mod |
| CPU | Modern multi-core, strong single-thread performance | More cores + high clock speed |
| Storage | SSD strongly recommended, tens of GB | SSD required; mods grow the install |
| Network | Stable, low-latency, decent upstream | Low-latency mandatory for a smooth feel |
Two things to internalize. First, CPU single-thread performance matters because ARK’s main simulation loop leans hard on one core. Second, always use an SSD — ARK saves are large and frequent, and spinning disks cause save-time hitches that players feel as freezes.
How do you install an ARK server with SteamCMD?
SteamCMD is Valve’s command-line tool for downloading dedicated server files. Let’s install it on a fresh Linux box.
First, create a dedicated, non-root user to run everything (good security hygiene):
“`bash sudo adduser –disabled-password –gecos “” steam sudo su – steam “`
Now grab SteamCMD. On a Debian/Ubuntu host you may need the 32-bit libs first:
“`bash sudo apt update sudo apt install -y lib32gcc-s1 curl mkdir -p ~/steamcmd && cd ~/steamcmd curl -sqL “https://steamcdn-a.akamaihd.net/client/installer/steamcmd_linux.tar.gz” | tar zxvf – “`
Run it once to let it self-update. You should land at a `Steam>` prompt:
“`bash ./steamcmd.sh “`
“` Steam Console Client (c) Valve Corporation — type ‘quit’ to exit — Loading Steam API…OK Steam> “`
Now download the ARK: Survival Ascended dedicated server. The Steam app ID is 2430930. We log in anonymous (no account needed for this server), set the install directory, then run `app_update` with `validate`:
“` Steam> login anonymous Steam> force_install_dir /home/steam/ark-asa Steam> app_update 2430930 validate Steam> quit “`
The validate flag is your friend — it verifies every file against Steam’s manifest and re-downloads anything corrupt. Expect this to take a while; the install is large. When it finishes you’ll see something like:
“` Success! App ‘2430930’ fully installed. “`
How do you configure the server?
ARK reads two main config files. After the first launch (or you can create them ahead of time) you’ll find them under:
“` ~/ark-asa/ShooterGame/Saved/Config/WindowsServer/ ├── GameUserSettings.ini └── Game.ini “`
`GameUserSettings.ini` holds the basics — server name, passwords, and rate multipliers. Open it and set the essentials:
“`ini [ServerSettings] ServerPassword=letmein ServerAdminPassword=ChangeThisStrongPassword XPMultiplier=2.0 TamingSpeedMultiplier=3.0 HarvestAmountMultiplier=2.0 RCONEnabled=True RCONPort=27020
[SessionSettings] SessionName=My Tribe’s ARK Server Port=7777 QueryPort=27015 “`
`Game.ini` is for deeper tuning — breeding rates, per-resource overrides, engram points. A common starter tweak:
“`ini [/script/shootergame.shootergamemode] MatingIntervalMultiplier=0.5 BabyMatureSpeedMultiplier=10.0 “`
Set a strong `ServerAdminPassword` — it doubles as your RCON password. Leave it weak and you’re handing strangers admin commands.
How do you launch the server with the right ports?
ARK launches by passing the map name plus query string options on the command line. Here’s a clean launch for The Island:
“`bash cd ~/ark-asa/ShooterGame/Binaries/Win64 ./ArkAscendedServer.exe TheIsland_WP?listen?SessionName=”My Tribe’s ARK Server”?Port=7777?QueryPort=27015?RCONEnabled=True?RCONPort=27020 -servergamelog “`
On a Linux host you’ll typically run the Windows binary under Proton/Wine or use the native build path your distro provides — the option string is identical either way.
You should see startup logs and, after a minute or two:
“` Server: “My Tribe’s ARK Server” has successfully started “`
Which ports does ARK need open?
Open these in your firewall. ARK is picky here — miss the query port and your server simply won’t appear in the browser.
| Port | Protocol | Purpose |
|---|---|---|
| 7777 | UDP | Game traffic (player connections) |
| 27015 | UDP | Steam query (server list visibility) |
| 27020 | TCP | RCON (remote admin console) |
With `ufw`:
“`bash sudo ufw allow 7777/udp sudo ufw allow 27015/udp sudo ufw allow 27020/tcp sudo ufw reload “`
A quick sanity check from another machine:
“`bash nc -zvu YOUR_SERVER_IP 7777 “`
How do you add mods to an ARK server?
ASA uses an in-game mod system powered by CurseForge. You don’t manually download mod files — you tell the server which mod IDs to load and it fetches them on startup. Add them to your launch line:
“`bash ./ArkAscendedServer.exe TheIsland_WP?listen?Port=7777?QueryPort=27015 -mods=123456,789012 -servergamelog “`
Replace the IDs with the CurseForge project IDs of the mods you want. Order can matter for overhaul mods, so list them deliberately. And remember the unique insight from earlier: every mod you add increases the RAM appetite of the server. Two or three quality-of-life mods are usually fine; a stacked modlist on a busy map can multiply your memory needs.
How do you keep the server running with systemd?
You don’t want the server dying when your SSH session closes or the box reboots. A systemd service handles persistence, auto-restart on crash, and start-on-boot. Create the unit (as root):
“`bash sudo nano /etc/systemd/system/ark.service “`
“`ini [Unit] Description=ARK Survival Ascended Dedicated Server After=network.target
[Service] Type=simple User=steam WorkingDirectory=/home/steam/ark-asa/ShooterGame/Binaries/Win64 ExecStart=/home/steam/ark-asa/ShooterGame/Binaries/Win64/ArkAscendedServer.exe TheIsland_WP?listen?Port=7777?QueryPort=27015?RCONEnabled=True?RCONPort=27020 -servergamelog Restart=on-failure RestartSec=15
[Install] WantedBy=multi-user.target “`
Enable and start it:
“`bash sudo systemctl daemon-reload sudo systemctl enable –now ark.service sudo systemctl status ark.service “`
You should see `active (running)`. The `Restart=on-failure` line is what saves you — if ARK crashes (and at some point it will), systemd brings it back in 15 seconds.
How do you save and keep the server updated?
Use RCON to save the world cleanly before any maintenance — never just kill the process, or you risk losing recent progress:
“` saveworld “`
To update after a new ARK patch, stop the service, re-run the `app_update`, then start again:
“`bash sudo systemctl stop ark.service sudo su – steam -c “~/steamcmd/steamcmd.sh +force_install_dir /home/steam/ark-asa +login anonymous +app_update 2430930 validate +quit” sudo systemctl start ark.service “`
Wrap that in a small shell script and you’ve got a one-command update. Pair it with a scheduled `saveworld` and restart, and your server practically runs itself.
The hardware reality behind a smooth ARK server
Everything above works only if the box underneath has the horsepower. This is where a properly specced VPS or dedicated server earns its keep — and where ARK punishes the under-provisioned.
DarazHost offers VPS and dedicated hosting built for exactly this workload: the substantial RAM an ARK server demands (with plenty of headroom for mods and a full map), a strong, high-clock CPU for that single-threaded simulation loop, and full root access so you can run SteamCMD, edit your INI files, and manage the firewall without restrictions. You get SSD storage for fast saves with no hitching, a low-latency network so your tribe doesn’t rubber-band, and 24/7 support if something goes sideways mid-raid. In short, it’s the kind of generously provisioned hardware that keeps an ARK server smooth instead of stuttering exactly when players log on.
Frequently asked questions
How much RAM does an ARK dedicated server really need? More than you think. Vanilla small-group servers need a substantial amount, and that climbs significantly once you add mods or fill a busy map. Because RAM starvation is the top cause of crashes, provision generously above the minimum rather than running tight.
Do I need to log into Steam to download the ARK server? No. The dedicated server downloads with `login anonymous` in SteamCMD — no Steam account or game license required for the server files (app ID 2430930). You only need accounts for the players connecting.
Why doesn’t my server show up in the in-game browser? Almost always a query port issue. Confirm UDP 27015 (or your configured query port) is open in the firewall and forwarded, and that `QueryPort` in your config matches the launch line.
Can I run mods without hurting performance? A few lightweight mods are fine, but every mod adds to the RAM and CPU load. If you run a heavy modlist, scale your server resources up accordingly — don’t expect a minimum-spec box to carry a stacked install.
How do I update the server when ARK patches? Stop the service, re-run `app_update 2430930 validate` through SteamCMD, then restart. Always issue a `saveworld` via RCON before stopping so you don’t lose recent progress.
