How to Set Up a Core Keeper Dedicated Server

By Admin · Mar 1, 2026 · Updated Apr 23, 2026 · 24 views · 1 min read

Overview

Core Keeper is a mining sandbox game supporting up to 8 players. Setting up a dedicated server provides a persistent world that stays online when the host is not playing.

Requirements

A Breeze with at least 2 GB RAM
5 GB disk space

Step 1: Install the Server

sudo useradd -r -m -d /opt/corekeeper ckserver
sudo -u ckserver steamcmd +force_install_dir /opt/corekeeper/server \
  +login anonymous \
  +app_update 1963720 validate \
  +quit

Step 2: Create a Start Script

sudo -u ckserver tee /opt/corekeeper/start.sh <<'EOF'
#!/bin/bash
cd /opt/corekeeper/server
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:./linux64
./CoreKeeperServer -batchmode -logfile /opt/corekeeper/logs/server.log
EOF
chmod +x /opt/corekeeper/start.sh

Step 3: Create a Systemd Service

sudo tee /etc/systemd/system/corekeeper.service <<EOF
[Unit]
Description=Core Keeper Server
After=network.target

[Service]
User=ckserver
WorkingDirectory=/opt/corekeeper
ExecStart=/opt/corekeeper/start.sh
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

sudo systemctl daemon-reload
sudo systemctl enable --now corekeeper

Connecting

After starting, the server generates a Game ID. Players enter this ID in the game to connect. Check the server log for the Game ID.