How to Install Core Keeper Mods: Steam Workshop, mod.io and Manual

How to install mods: Steam Workshop, mod.io or manually

Install from the Steam Workshop

1. Open the mod you want on the Core Keeper Steam Workshop.
2. Click “Subscribe”.
3. Restart the game and the mod is loaded (“This mod requires a game restart to be installed”).
4. Updates to Workshop mods are downloaded automatically while the game is closed.

Install from mod.io

1. Open the Core Keeper page on mod.io, or the mod.io menu on the game’s main menu.
2. Subscribe to the mod. Some mods require other mods (dependencies), which the mod’s description lists; install those too. If one is missing, the game says “Mod is missing a dependency” or offers to install it.
3. Restart the game to load it. Subscribed mods keep themselves up to date while the game is closed.

Install manually

Put the downloaded mod files in the game folder under CoreKeeper_Data/StreamingAssets/Mods/, with a separate folder for each mod. The game loads these as “Local” mods. You update manually installed mods yourself by replacing the files.

We have not confirmed whether mods work on the console versions (Switch, PlayStation, Xbox).

The in-game mod list, and what to do when a mod doesn’t work

• Mod list: the Mods menu shows how many mods loaded and how many failed, links to the page each mod came from, and lets you change the load order.
• If a mod fails to load: the list shows a warning with the reason (for example “Mod is missing a dependency” or “Mod failed to load”). Details are written to the game's log file (Player.log).
• If the game won't start: the game turns off all mods (“All mods have been disabled, because one or more of your chosen mods prevented the game from launching”). Review your mods and restart.
• Elevated Access mods: the game warns that these mods can reach files and the internet outside the game, and recommends installing them only from reputable sources.
• After a game update: a mod may not work until its author updates it. When that happens is up to the author, so check the last-updated date on the Workshop or mod.io.

How to make mods (official Mod SDK)

The developer, Pugstorm, publishes an official modding tool (the Mod SDK, a Unity project you open through Unity Hub) and documentation. The documentation walks through changing game data, adding scripts and prefabs, and building custom scenes, with examples such as new items, crafting stations and enemies. From the SDK you can build and install a mod locally, and upload it to the Steam Workshop or mod.io when it is ready.

• Official modding documentation
• Official Mod SDK (GitHub)

Menu names and messages are the game's own English text, and the local mod folder is read from the game's code (Core Keeper 1.3.0.6). Mods are made by the community (the game itself says to “enjoy mods at your own discretion”); this site has not reviewed the content or safety of individual mods. Automatic updates, the mod.io menu, dependency lists, source links and what the Mod SDK covers are from the official modding documentation (modding.corekeepergame.com).