Getting started with your Core Keeper server

This guide takes you from your order to your first connection: choosing a plan, getting around the Game Panel, grabbing the Game ID and joining from the game. The other pages of this section then cover world settings, importing an existing world, mods and troubleshooting.

Choosing a plan

YorkHost offers Core Keeper server hosting on AMD Ryzen or Intel CPUs, NVMe storage and a 10 Gbps network, with Anti-DDoS protection and 7/7 support on Discord. Core Keeper's official dedicated server runs natively on Linux, with no emulation layer. Four plans are available:

Plan	vCores	RAM	Storage	Indicative price	Best for
Tin	1	2 GB	10 GB NVMe	€1.99/month	A duo or small group of 1 to 4 players on a vanilla world
Scarlet	2	4 GB	20 GB NVMe	€2.99/month	A full group of 4 to 8 players, the game's official format
Octarine	3	6 GB	30 GB NVMe	€4.99/month	More than 8 players (raised MaxPlayers) or a few mods
Galaxite	4	8 GB	40 GB NVMe	€6.99/month	Heavily explored worlds, modded servers or long-running playthroughs

Up-to-date pricing

The reference prices and specifications are the ones shown on the Core Keeper page of the YorkHost website at the time of ordering.

How much RAM do you need?

Core Keeper is a lightweight game. Memory usage mostly depends on three factors:

• How many players are online: the game is designed for 8 players; beyond that, keep some headroom.
• How much of the world has been explored: the further you dig from the Core, the more areas the server has to keep in memory.
• The mods installed on the server.

You can move up to a bigger plan from your client area as your world grows.

Accessing the Game Panel

Your server is installed automatically after you order and is managed from the Game Panel (Wisp):

1. Log in to your Game Panel:
   • game.yorkhost.fr
2. Select your Core Keeper server
3. You land on the Console: this is where you start, stop and restart the server, and follow its startup in real time

The most useful tabs for Core Keeper:

Tab	Use
Console	Start / stop the server, read the logs, grab the Game ID
Files	File manager: worlds, mods, server files
Startup	Startup settings exposed by the panel: world name, seed, mode, max players
Backups	Server backups
Schedules	Scheduled tasks, for example an automatic restart

To transfer files (a local world, mods), you can also use SFTP access. Your credentials are under Settings → SFTP Details: see SFTP extension for VSCode or use a client such as FileZilla or WinSCP.

Getting the Game ID

Core Keeper doesn't use an IP address to join a game: the server generates a Game ID, a game identifier that players enter in the game. No ports to open on your side.

1. Start the server from the Console
2. Wait for startup to finish: the Game ID appears in the console, on a line that explicitly mentions it
3. Copy it in full

The Game ID doesn't show up in the console?

Depending on the server version, the Game ID is also written to a text file at the root of the server, usually GameID.txt. Open it from the Files tab. If neither the console nor the file shows it, see Troubleshooting.

Keep the Game ID within your group

The Game ID works as an access key: anyone who knows it can join your server. Only share it with the players you invite, and avoid posting it on a public Discord server or showing it on stream.

The IP:PORT address shown in the panel is the one assigned to your server. You don't need it to join the game with the Game ID. Don't change the port manually: port opening is handled on our side (see Are all ports open?).

Joining the server from the game

Once the server is running and you have the Game ID:

1. Launch Core Keeper (PC version, Steam)
2. From the main menu, select Join Game
3. Paste the Game ID
4. Pick your character and confirm

Then share the Game ID with your friends: they follow the same steps.

Same version as the server

The client must be on the same version as the server. If Steam has updated your game but not the server yet (or the other way round), the connection fails. See Troubleshooting.

Console players

Our dedicated servers are built for the PC (Steam) version of Core Keeper. Cross-platform play isn't guaranteed on a dedicated server: if console players are part of your group, contact our support.

First settings to make

1. The world: choose the name, the seed and above all the mode (Standard, Hard, Creative or Casual) before starting the real playthrough, see Configure the server and world.
2. Player count: adjust the maximum number of players to your group, see Configure the server and world.
3. Your backups: schedule regular backups, especially before importing a world or adding a mod, see Import a world and backups.

Learn more

• Configure the server and world: name, seed, mode, max players, Game ID
• Import a world and manage backups
• Install mod.io mods
• Troubleshooting

Need help?

Our team is available 7 days a week on Discord or through your client area.