Explorers in an underground cavern in Core Keeper

Available at launch

Core Keeper server hosting.

A Core Keeper world your friends can join with a Game ID, whether or not you are online. 4 to 16 slots, from £4.99 a month.

Compare plans

Choose a plan

Core Keeper’s server grows with the world and the number of players. Friends suits a small group; bigger worlds want Community or Public.

Billing

6 months (save 10%) and yearly (save 15%) open in March 2027.

Community8 slots · 4 GBBigger worlds and more players

£8.99 a month

Renews monthly until you cancel

Memory4 GB, reserved

Player slots8

ProcessorAMD Ryzen CPU

Processor timeHalf a thread always yours, bursts up to 2 threads when the machine is quiet

Disk10 GB NVMe

Automatic backupsHourly backups, kept for up to 48 hours, in their own 10 GB backup space that doesn’t use your disk

Off-site backupsEvery 6 hours, encrypted, with 7 daily copies kept, plus 3 backups of your own

LocationUK

Join the Discord

Add-ons, any time from HQ

Extra burst, +2 CPU threads+£2.99 a month

Extra disk, +25 GB+£1.99 a month

Extra disk, +50 GB+£3.99 a month

5 more backups+£1.49 a month

Backup bundle+£2.99 a month

Core Keeper plans and monthly prices
Plan	Memory	Slots	Processor threads, always yours / burst	Disk	Suits	Monthly
Friends	2 GB	4	¼ thread / 1	5 GB	Up to 4 players	£4.99
Community	4 GB	8	½ thread / 2	10 GB	Bigger worlds and more players	£8.99
Public	6 GB	16	½ thread / 2	15 GB	Large worlds shared with many players	£13.99

Which size do I need?

The Core Keeper plan we suggest for each number of players
Players	Suggested plan
1 to 4	Friends · 4 slots · 2 GB
5 to 8	Community · 8 slots · 4 GB
9 to 16	Public · 16 slots · 6 GB
More than 16	Bigger than our largest plan

Not sure? Start smaller: moving up charges only the difference for the days left. Bigger than our largest Core Keeper plan? Ask us.

Prices include everything, with nothing added at checkout. No VAT will be added to these prices. Each server renews automatically until you cancel, in one step in HQ, and we email you before each renewal. Pay by card, Apple Pay or Google Pay. Founder offer: 10% off your server plan for the first 12 months (on your first server only, for the first 200 accounts that pay, one per person; closes at 200 or on 31 March 2027). 72-hour full refund on your first purchase (one per customer). A thread is half of a processor core; bursts use idle processor time on the machine, so they aren’t guaranteed.

What you get on Core Keeper

Core Keeper

Game ID in HQ

HQ shows the Game ID on the Connect page and keeps it across restarts.

Core Keeper

World settings in a form

World name, mode, seed, season and who can join.

Core Keeper

Slots locked to your plan

Player slots are set from your plan on every start.

Core Keeper

Saves on stop

A stop from HQ lets the server save before it quits.

On every Exclsv server

Off-site backupsEvery 6 hours, encrypted, in another data centre, with 7 daily copies kept.

Undo and the BinUndo this change takes back one settings save, and a roll-back can be undone too. Deleted files wait in the Bin for 7 days.

Saved setupsUp to 3 on one server, say a modded world and a vanilla one. Switch between them any time.

Crash careAfter a crash HQ starts the server again and tells you why it stopped. If it keeps crashing, HQ names the likely cause and offers to remove it.

Memory that’s yours2 to 6 GB of DDR4 ECC memory, never shared or oversold, plus CPU threads that are always yours.

UKAn AMD Ryzen CPU, 128 GB DDR4 ECC memory, NVMe storage and always-on network DDoS protection.

A person on supportBy ticket or email.

How players join

Players join from the address HQ shows on your server page, or the share link that opens a page with these steps.

Core Keeper

Choose Join Game.
Type the Game ID shown in HQ.
Choose Join.

Core Keeper server guide: join, mods, settings and fixes Guides in the help centre

Mods

Core Keeper server mods aren’t offered yet.

Server

The game’s own dedicated server (Linux)

Mods fromNone at launch

Settings · Exclsv HQPreview

World nameAn Exclsv Core Keeper world

World modeNormal

World seedRandom

SeasonThe real date

Max players4Set by your plan

HQ stops the server, writes the file, checks it and starts it again. Each save can be undone on its own with Undo this change.

Good to know before you buy

What Core Keeper on Exclsv can’t do, or does differently.

Anyone with the Game ID can join. There is no server password, so share the ID only with people you trust.
HQ can’t kick or ban players: Core Keeper’s server has no command for it.
No server mods yet.
Every player needs Core Keeper and the same game version as the server.

Questions about Core Keeper servers

How do I join a Core Keeper server?

Choose Join Game, type the Game ID shown in HQ and choose Join.

Can I set a password?

No. Core Keeper servers have none, so anyone with the Game ID can join.

Does the Game ID change?

Not when the server restarts. It changes if the server is reinstalled without the old ID set, so paste the old one in Settings first.

Can I use mods?

Not yet.

How much does a Core Keeper server cost?

£4.99 a month for 4 slots and 2 GB, £8.99 for 8 slots and 4 GB, or £13.99 for 16 slots and 6 GB.

Available at launch

Your Core Keeper server, ready in a few minutes.

Orders open soon. We test every game on our own machines before it goes on sale.

Opening soon

Or come and say hello. Tell us what you play and hear the news first.

Join the Discord [email protected]

Nothing is on sale yet.