Host a Core Keeper server for your friends
Free, on your PC, no port forwarding. Core Keeper is planned for our launch catalog. Join the waitlist and we'll tell you the moment it's live.
Host a Core Keeper server free- RAM
- 2-4 GB
- Server OS
- Windows, Linux
- Typical group
- 2-8 friends
Why host Core Keeper with Multiplayer Rally
Cozy mining co-op with an unusual networking story: the server tunnels through Steam's relay by default, no open port needed. Our value here is the management, the always-on world, and the invite link for friends outside Steam.
- Light server: Core Keeper fits comfortably on most gaming PCs. Plan on 2-4 GB of free RAM.
- Runs the official Core Keeper server on Windows, Linux. We download it from the publisher and keep the runtime patched.
- Your Core Keeper world stays set up between sessions. The app handles restarts, updates, and the relay link so the squad can drop in whenever you're online.
How hosting Core Keeper works
- Step 01
Install Multiplayer Rally
One Windows app. It installs and manages the Core Keeper dedicated server for you. No command line, no config files.
- Step 02
Pick Core Keeper
We set the ports, the settings, and the restart schedule. You pick the world name and who's allowed in.
- Step 03
Share your link
You get one address your friends paste into the game, and they're in. Nothing to install on their side, no port forwarding on yours.
Core Keeper hosting questions
Plan on 2-4 GB of free RAM for a friend-group server. Your PC needs that on top of whatever else it's running; the app checks before installing.
Yes, that's the whole point. The agent on your PC makes an outbound connection to our relay, so you never touch your router. Your friends connect to the relay address and the traffic is tunneled to your Core Keeper server. Nothing is exposed to the open internet.
Yes. Each player needs their own copy of Core Keeper to join your server. We host the server side; the game itself comes from the store like always.
Core Keeper is in our planned launch catalog. Join the waitlist, pick Core Keeper as your game, and we'll email you when it's live.
Your PC is the server, so the world is offline until you turn it back on, then it's right where you left it. The agent restarts Core Keeper for you automatically. An always-on managed tier on our hardware comes later.