Hundreds of Kerbals were killed in the making of this mod.

Kerbalism is a mod for Kerbal Space Program that alters the game to add life support, radiation, failures and an entirely new way of doing science.

What's new : New and Noteworthy
Download : Github releases - CKAN
Docs & support : Github wiki - Discord - FAQ - Github issues - KSP forums thread
License : Unlicense (public domain)
KSP version : 1.5.x to 1.8.x
Requires : Module Manager, CommunityResourcePack
Mod compatibility - Changelog - Dev Builds

Download on Github releases or use CKAN

Two packages are available :

• Kerbalism is the core plugin, always required.
• KerbalismConfig is the default configuration pack.
  It can be be replaced by other packs distributed elsewhere.

Requirements

• Module Manager : must be installed in GameData
• CommunityResourcePack : must be installed in GameData

Third-party configuration packs

Make sure to install exactly one configuration pack only.
Don't combine packs unless there is explicit instructions to do so.

• ROKerbalism for Realism Overhaul / RP-1 by standecco
• SIMPLEX Living by theJesuit
• KerbalismScienceOnly for Kerbalism with the science feature only

Installation checklist for the "GameData" folder required content :

• CommunityResourcePack (folder)
• Kerbalism (folder)
• KerbalismConfig (folder, can be replaced by a third-party config pack)
• ModuleManager.X.X.X.dll (file)

Checking the mod compatibility page is mandatory before installing Kerbalism on a heavily modded game.

Kerbalism does very custom stuff. This can break other mods. For a lot of mods that breaks or need balancing, we provide support code and configuration patches. However some mods are incompatible because there is too much feature overlap or support is too complex to implement.

• Tutorials and documentation are available at the Github wiki

• Need help ?

  Ask on Discord or in the KSP forums thread
  Also see this short YouTube video about useful UI tips.

• You found a bug ?

  • Maybe it's related to another mod ? Check the Mod Compatibility page.
  • Maybe it's a known issue ? Check the GitHub issues and ask on the [official Discord].

• You want to report a bug ?

  • Reproduce it consistently, provide us with screenshots and the KSP.log, modulemanager.configcache and persistent.sfs files.
  • Report it on Github issues (preferred) or in the KSP forums thread (we don't go there often).

• You want to contribute or add support for your mod ?

  • Check the technical guide on the wiki
  • Pull requests are welcome, especially for mod support configs. For code contributions, it is recommended to talk to us on Discord before engaging anything.
  • Read the contributing documentation
  • To build the plugin from the source code, read the BuildSystem documentation

This mod is released under the Unlicense, which mean it's in the public domain.

It includes MiniAVC. If you opt-in, it will use the Internet to check whether there is a new version available. Data is only read from the Internet and no personal information is sent. For more control, download the full KSP-AVC Plugin.