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.
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.
Get early access for Core KeeperWhat you need
- RAM
- 2-4 GB
- Server OS
- Windows, Linux
- Typical group
- 2-8 friends
How hosting Core Keeper works
- 01
Install Multiplayer Rally
One Windows app. It installs and manages the Core Keeper dedicated server for you. No command line, no config files.
- 02
Pick Core Keeper
We set the ports, the settings, and the restart schedule. You pick the world name and who's allowed in.
- 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. 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.