Run a Core Keeper server for your crew
Mine deeper, craft gear and build a base together in a procedural underground world — created in minutes. Send friends the address and they're in. It runs continuously once started, so stop it from the dashboard when your crew's done for the day.
From 2 GB · ฿0.50 an hour while it's on
Never more than ฿7 per 24-hour round ·
Top up with PromptPay · free ฿20 credit on Discord
One night
A Friday night, 21:05–03:12
hours the server was on
for the whole night, at 2 GB
split 4 ways, each pays
Off for the other 17 h 53 min, nothing charged
Forget to switch it off and a 24-hour round still costs ฿7 at most
How to start
- 01Pick RAM, hit create
Choose a size from 2GB up, name your server, and hit create.
- 02Copy the server address
We assign an address automatically — copy it from the dashboard.
- 03Friends connect in-game
Friends pick Direct Connect in Core Keeper's own multiplayer menu, paste the address, enter the password from your dashboard, and drop into the mine together.
Why run Core Keeper on uniz.host
- Set up your world your wayPick a world seed and a difficulty mode when the world is first created, and tune the season to run any in-game event whenever your crew wants it.
- Stop it yourself, stay in controlThis game has no way to detect an empty server, so it never auto-sleeps — once started, it bills continuously until you stop it. If you forget, it is never more than ฿7 per 24-hour round.
- Lightest server on the platformA 2D pixel-art world means the smallest RAM footprint we offer — a bigger budget goes further here than on any other game.
- Invite friends to help run itFine-grained team permissions: who can restart, who can view the console — you decide.
Frequently asked questions
How much does a Core Keeper server cost?
Billed hourly by RAM size, from ฿0.50 an hour at 2 GB, for every hour the server is online, and never more than ฿7 per 24-hour round or ฿149 per 1-month round. Within each round, the system picks the cheaper one for you. That caps what a forgotten server can cost. Core Keeper has no auto-sleep, unlike the other games we host — remember to stop it yourself when you're done playing.
How much RAM do I need?
Core Keeper needs at least 2GB — the lightest requirement of any game we host. Go bigger for a longer-running world.
Can I change the world seed or difficulty later?
World name, world seed and difficulty mode are set once, the first time you save them, and lock permanently after — they define the world itself, so changing them later would start a brand-new one. Max players and the seasonal event override can be changed anytime.
How do friends join?
Copy the server address and password from the dashboard — friends pick Direct Connect in the game's own multiplayer menu, paste the address, and enter the password to join. No extra software needed.
Does this server auto-sleep when nobody's playing?
No — Core Keeper gives us no way to detect an empty server, so it doesn't auto-sleep like the other games we host. It keeps running, and billing, from the moment you start it. Stop it yourself from the dashboard when your session's over; if you forget, it is never more than ฿7 per 24-hour round.
Other games you can open the same system
All games
Ready to start digging with your crew?
Free credit via code · billed continuously while online · no card required