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Risk of Rain 2 Server Hosting
Loop, scale and take on the final boss with your squad while the AI copilot keeps the run going.
What do you need to host a Risk of Rain 2 server?
To host a Risk of Rain 2 server you need the free Risk of Rain 2 Dedicated Server tool from Steam (app 1180760, a Windows build), 2–4 GB of RAM, UDP port 27015 open, and a server.cfg with your name, password and player cap. Players then join through the game's console. Or rent a Risk of Rain 2 host server that is already set up: with GameTeam's dedicated server hosting you pay per GB of RAM, from $0.49/GB a week, slots are unlimited (the game itself is built for 4), and the AI copilot installs BepInEx mods and spots version mismatches.
Run your Risk of Rain 2 server by just asking.
A Risk of Rain 2 dedicated server has no menu, just a .cfg file and a console, and the game client has to match it exactly. Tell the copilot what run you want: it writes server.cfg, installs the mod pack and says plainly when the server and the game are on different builds.
Mods Installed, Versions Checked
BepInEx and packages installed by the copilot; mismatches are named, not guessed.
Cheap and Fast
A light game on a per-GB plan — a squad server costs very little.
One Server, Any Game
Switch the server when the squad rotates.
Risk of Rain 2 with friends
A co-op roguelike shooter where the difficulty climbs with time and so does your power: every item stacks, every run spirals out of control. Together it becomes a scramble to build the most ridiculous character before the game overwhelms you.
Risk of Rain 2 server RAM requirements
2-4 GB.
| Your server | Starting RAM | From (Budget, weekly) |
|---|---|---|
| A squad of 4, vanilla runs | 2 GB | $0.98 / week |
| A squad with a big Thunderstore mod list | 4 GB | $1.96 / week |
Risk of Rain 2 is light on a server: every run starts fresh, so there is no world save that grows week after week. Mods are what push it toward 4 GB. Change RAM in one click from the panel if a modded run starts to stutter. Player limit: 4 by default, and higher with mods that raise the cap.
How to set up a Risk of Rain 2 server on GameTeam
Deploy and pick a location
Start with 2 GB, or 4 GB if you plan a large mod list. Pick the location nearest your squad; we have 25+ across Europe, the Americas and Asia-Pacific.
Set up the run
Tell the copilot the server name, password, player cap and mode, or edit Risk of Rain 2_Data/Config/server.cfg in the file manager. Want mods? Ask it to add BepInEx and your Thunderstore list.
Connect from the console
Turn crossplay off in the game, open the console with Ctrl+Alt+` and type connect "address:port" with the address from the panel. With a password, run cl_password "yourpassword" first.
Good to know before you start
BepInEx has to be installed before mods can load, and the server and every client need the same mod versions.
Risk of Rain 2 server settings explained
The dedicated server reads console variables from Risk of Rain 2_Data/Config/server.cfg, one per line, each ending in a semicolon, for example sv_maxplayers 4;. The file starts as a copy of the server_startup.cfg that ships with the server. A startup warning about a missing server_pregame.cfg is harmless. The variables you will touch:
| Setting | What it does |
|---|---|
sv_hostname | The name shown in the server browser. |
sv_password | Password players must give with cl_password before connecting. Leave empty for an open server. It is stored as plain text, so don't reuse a real password. |
sv_maxplayers | Player cap. The game is designed for 4, which is the default. |
sv_port | The UDP port the game listens on. Default 27015. |
steam_server_heartbeat_enabled | 1 advertises the server to Steam so it appears in the in-game server browser; 0 keeps it direct-connect only. |
steam_server_query_port | Port Steam uses to query the server for the browser listing (27016 in common setups). |
steam_server_steam_port | Steam's own port for the server. Like the query port, it is optional and only used for the browser listing. |
sv_custom_tags | Comma-separated tags shown in the browser, handy for "modded" or a region. |
gamemode | ClassicRun for a normal run, InfiniteTowerRun for Simulacrum. |
Risk of Rain 2 server commands
Players type these in the game client's console, opened with Ctrl+Alt+`. Turn crossplay off in the game settings before connecting by IP.
| Command | What it does |
|---|---|
connect "address:27015" | Joins the server at that address and port. Use the exact address and port from the GameTeam panel. |
cl_password "password" | Sets the password for the next connect. Run it before connect, on the same line if you like: cl_password "pw"; connect "address:port". |
Can I add mods to a Risk of Rain 2 server?
Yes, through BepInEx and Thunderstore packages. Server and clients must run matching mod versions.
Install BepInExPack from Thunderstore first: its winhttp.dll and doorstop_config.ini sit next to the server's Risk of Rain 2.exe, mods go in BepInEx/plugins and their settings appear in BepInEx/config after the first start. Thunderstore tags each mod as server-side, client-side or both, and the both kind has to be on every player's game too. The easy way to share the set is an r2modman profile: export it and your friends import the same mods and configs.
Risk of Rain 2 server ports
On GameTeam there is nothing to forward: the panel shows your server's exact address and port, which may differ from these defaults.
Pay per GB of RAM. Never per slot.
You pay for memory, not seats, and billing can be weekly, so you are never locked into a month the group might not play. Change RAM in one click, or switch the same server to another game. The AI copilot is included on every plan.
- ✓ AI copilot included on every plan
- ✓ Unlimited player slots — we never charge per slot
- ✓ Ryzen 9 7950X · NVMe storage
- ✓ DDoS protection included
- ✓ Switch to another game anytime
- ✓ 25 GB NVMe storage · 160 Gbps DDoS protection
- ✓ AI copilot included on every plan
- ✓ Unlimited player slots — we never charge per slot
- ✓ Ryzen 9 7950X · Unlimited NVMe storage
- ✓ 480 Gbps DDoS protection
- ✓ Switch to another game anytime
- ✓ Dedicated threads
- ✓ Automatic backups
- ✓ Priority support
Hardware & network
Locations
What server owners say
"Honestly didn't expect much from an 'AI manager', but it's how I run my server now. I'll type something like 'why did the server crash last night' and it actually reads the logs and tells me."
Verified review
"I'd been on two other hosts before this. What sold me was the AI manager catching a memory leak in one of my mods and naming the exact one — something I'd been chasing for weeks."
Verified review
"I'm not very technical and setting up servers always stressed me out. Now I just ask the assistant to fix a config, and it either walks me through it or does it for me."
Verified review
Risk of Rain 2 server hosting FAQ
How do I host a Risk of Rain 2 server?
Install the free Risk of Rain 2 Dedicated Server tool from your Steam library (or with SteamCMD, app 1180760), edit server.cfg in Risk of Rain 2_Data/Config, open UDP 27015 and start Risk of Rain 2.exe from the server folder. On GameTeam the install is done for you, and the copilot writes the cfg when you describe the run.
Is there a Risk of Rain 2 dedicated server?
Yes. There is an official one, published on Steam as a separate tool, the Risk of Rain 2 Dedicated Server, and it costs nothing to download. It is a Windows build with no menu: you configure it with server.cfg and players join through the console or the server browser. Without it, a co-op lobby runs on one player's game.
Why do I get a version mismatch joining a Risk of Rain 2 server?
The server and the game must be on the same build. The dedicated server has lagged behind game patches before (in late 2023 players were on 1.2.4.4 while the server sat at 1.2.4.1), and mods add a second layer: client and server need the same mod versions. Ask the copilot and it updates the server, compares versions and tells you which side is behind.
How many players can join a Risk of Rain 2 server?
The game is designed for 4, and sv_maxplayers defaults to 4. Bigger lobbies are a modded setup, so pick a mod made for it and check its page. GameTeam never charges per slot, so the cap is the game's, not ours.
Can I add mods to my Risk of Rain 2 server?
Yes, through BepInEx and Thunderstore. Install BepInExPack on the server first, then the mods into BepInEx/plugins. Server-side mods run only on the server; anything tagged client-side must be on every player's game at the same version. The copilot installs the set and lists the versions to share.
Can I run Simulacrum on a dedicated server?
Yes. Set gamemode in server.cfg to InfiniteTowerRun for Simulacrum, or ClassicRun for a normal run, then restart. Or just ask the copilot to switch modes.
How much does Risk of Rain 2 server hosting cost?
You pay per GB of RAM: $0.49/GB a week on Budget, or $1.99/GB billed monthly. A 2 GB vanilla server is $0.98 a week and a 4 GB modded one is $1.96 a week, with unlimited slots, the AI copilot included and 72 hours money-back.
Same server, any game.
Your Risk of Rain 2 server, ready for the next loop.
Deploy it, tell the copilot which run and which mods, and send your squad one connect line.
Deploy your Risk of Rain 2 server