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Core Keeper Server

Dig, build, and battle in the underground with friends on your own Core Keeper dedicated server.

Server Plans​

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Features​

  • Persistent World - Your underground keeps expanding
  • Co-op Mining - Dig together efficiently
  • Boss Battles - Fight powerful underground bosses
  • Base Building - Construct underground bases
  • Farming - Grow crops and raise slimes
  • Mod Support - Community modifications
  • Auto-Save - Never lose progress

Quick Start​

  1. Create Account - Sign up at reactor-servers.com
  2. Choose Plan - Select based on player count
  3. Configure - Set world name and seed
  4. Launch - Server starts in 1-2 minutes
  5. Join - Connect via in-game server list

Server Settings​

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Gameplay Features​

Mining & Exploration​

  • Procedurally generated caverns
  • Multiple biomes (Desert, Jungle, Ice, etc.)
  • Hidden secrets and treasures
  • Resource veins and rare ores

Base Building​

  • Build anywhere underground
  • Crafting stations and automation
  • Decorations and furniture
  • Storage organization
  • Lighting systems

Combat & Bosses​

  • Fight underground creatures
  • Summon and defeat bosses
  • Unlock new areas
  • Gather rare loot
  • Craft powerful equipment

Farming & Cooking​

  • Plant crops in farming plots
  • Raise slimes for resources
  • Cook meals for buffs
  • Fish in underground lakes
  • Automate production

Backups​

Never lose your progress:

  • Auto-Save - Every 5-30 minutes (configurable)
  • Daily Backups - Full world backup at 2 AM UTC
  • Download Saves - Export world files
  • Restore Backups - Revert to any backup
  • 7-Day Retention - One week of backups kept

FAQ​

How do I join my server?​

In Core Keeper:

  1. Launch the game
  2. Click "Join Game"
  3. Click "Internet" tab
  4. Enter your server IP and port (27015)
  5. Enter password if set
  6. Click "Join"

Can I use my existing world?​

Yes! Upload your save:

  1. Find your save in %userprofile%\AppData\LocalLow\Pugstorm\Core Keeper\Steam\<steamid>\worlds
  2. Copy the world file (.world)
  3. Upload via server dashboard
  4. Restart the server

What's the best server plan?​

Recommendations by group size:

  • Bronze: 2-4 players, early game
  • Silver: 4-8 players, mid game
  • Gold: 8-16+ players, late game mega bases

Larger worlds with extensive bases need more RAM.

How do I set a world seed?​

  1. Go to server settings
  2. Set "World Seed" to a number (or 0 for random)
  3. Create new world
  4. Share seed with friends for identical worlds

Seeds control:

  • Biome placement
  • Boss locations
  • Resource distribution
  • Cave layouts

Can I enable PvP?​

Yes! Configure PvP settings:

  1. Enable PvP in server config
  2. Set friendly fire on/off
  3. Configure death penalties
  4. Restart the server

Note: Core Keeper is designed for co-op, so PvP is experimental.

How do I add mods?​

Core Keeper mod support is community-driven:

  1. Install BepInEx on server
  2. Download mod files
  3. Upload to BepInEx/plugins folder
  4. Restart the server
  5. Players install same mods locally

Check Core Keeper Modding Discord for mods.

Why can't I find my server?​

Common issues:

  • Wrong region filter - Check region settings
  • Password protected - Server won't show in public list
  • Firewall blocking - Check port forwarding (27015)
  • Version mismatch - Update server or client
  • Max players reached - Increase limit

Try connecting by IP directly instead of browser.

How do I reset the world?​

To start fresh:

  1. Go to server dashboard
  2. Click "World Management"
  3. Click "Create New World"
  4. Set new world seed (optional)
  5. Restart the server

Warning: This deletes all progress!

What happens during seasons?​

Seasons affect gameplay:

  • Spring: Normal gameplay, planting season
  • Summer: Faster crop growth, heat
  • Autumn: Harvest season, preparing for winter
  • Winter: Slower growth, cold mechanics

Seasons change automatically or can be locked.

How do I run a dedicated build server?​

For creative building:

  1. Set difficulty to "Peaceful" (no enemies)
  2. Give admin powers to trusted builders
  3. Increase inventory size multiplier
  4. Enable unlimited resources (via mods)
  5. Focus on base construction

Perfect for community building projects.