Best Core Keeper Server Hosting (2026): World, Mods, and Slot Checklist
Core Keeper looks lightweight until a world has been mined, expanded, automated, and revisited by a full party. The server is the keeper of the world ID, saves, progression, and the mod/config state that determines whether everyone can join cleanly.
The official dedicated-server baseline is a small party, but the connection limit is configurable and hosting tiers go beyond it. Compare world management and recovery as carefully as slots and RAM.
The short version
| Default scale | The dedicated server defaults to 8 players; the current hosting tiers expose 8, 16, and 30 slots. |
|---|---|
| World load | Large mined worlds, automation, bosses, and persistent sessions can outgrow a fresh-save test. |
| Mods | Community/mod.io-style content and version compatibility should be checked before applying a collection to a live world. |
| Connection | The world ID/connection flow and password or whitelist are part of the player experience. |
| Operations | The source fragment lists automatic updates, backups, console/config tools, FTP, and four regions. |
What actually matters when choosing Core Keeper hosting
Use these checks when comparing any provider. They are deliberately tied to this game’s server model, so a high slot number or generic “unlimited” badge cannot answer them for you.
1. World size and automation headroom
A new Core Keeper world is cheap to run; an old world with tunnels, farms, machines, and boss areas is a better capacity test.
Check: Ask how RAM and CPU scale as the world grows, not only how many players the plan can list.
2. The real player limit
Eight is the default/balanced party size, while larger advertised tiers are useful only if the server and group can sustain them.
Check: Confirm whether the slot number is concurrent players and whether it is configurable without editing the wrong file.
3. World ID and access controls
Players need a reliable way to join the same persistent world, while private groups need password or whitelist control.
Check: Test the shared-world join path and ask what happens if the server is moved or restarted.
4. Mod/version discipline
A mod that works in a local session can still fail when the dedicated server, clients, and world are on different builds.
Check: Look for supported mod installation, version notes, file access, and a backup before each change.
5. Save upload and restore
The world is the product. A host should make it possible to migrate from solo play, another host, or a local dedicated server.
Check: Verify FTP/world upload, automatic snapshots, and a restore process you can perform without waiting for support.
6. Price versus a small-party alternative
A cheap eight-slot server can be perfect for a friends-only world, but a larger automated world may need more resources than the slot label suggests.
Check: Compare RAM, backups, file access, regions, and upgrade cost at the world size you expect after a month.
Green flags and red flags
Use these as questions for a provider, not as a substitute for testing the exact game build, map, mod list, or save.
Green flags
- The host states the default eight-player scale and explains larger tiers.
- World IDs, passwords, and whitelist behavior are documented.
- Backups can be downloaded and a world can be imported.
- Mod installation includes version and recovery guidance.
Red flags
- Slot count is sold without any world-size or RAM context.
- The provider cannot explain what happens to the world ID after a move.
- Mods are promised without a restore point or compatibility note.
- There is no practical save-export path.
Where Supercraft fits the checklist
Supercraft is the operator behind the offer shown below, so this section is an affiliation disclosure as well as a comparison. The useful claim is limited to what the corresponding hosting page actually lists; verify unusual mods, platform mixes, or capacity assumptions before ordering.
Current Core Keeper hosting offer
These are the current plan facts collected from the canonical hosting page. Prices are loaded from WooCommerce at request time and adapt to the visitor’s store currency; no static price is embedded in the guide.
The default-sized private party and a normal persistent world.
A larger group, more automation, or a world with substantial progress.
Large communities or heavily developed worlds with more headroom.
The cards show Supercraft’s current plan structure for this game. They are included so you can compare a concrete offer against the checklist; they are not a claim that Supercraft is objectively the best provider for every group.
See the full Core Keeper server hosting pageCore Keeper hosting FAQ
How many players can a Core Keeper server hold?
The dedicated server defaults to 8 players and the limit is configurable. Supercraft lists 8 slots on S, 16 on M, and 30 on L. Larger worlds and automation still need more headroom than a fresh world.
Can I upload my existing Core Keeper world?
Yes, a provider should support uploading a world from solo play, another host, or a local dedicated server. Keep the original copy and verify the imported world before replacing it.
Does Core Keeper hosting support mods?
The hosting page and wiki describe community/mod support. Check the exact mod, version, and whether every player needs the same client-side content before applying it to a valuable world.
Is Plan S enough for a normal party?
It is the natural starting point for the default eight-player scale and a normal private world. Move to M or L when the world is heavily mined/automated or your concurrent group is larger.
What makes a Core Keeper host worth paying for?
Persistent uptime, world export, backups, reliable world-ID access, config/file control, and an upgrade path are the useful differences over a one-off local session.
Keep researching
Sources used for this guide: Core Keeper community wiki: dedicated server setup · Supercraft Core Keeper hosting page.