Welcome to The Reclaimers Library (c20), a project which aims to document and centralize the immense tribal knowledge of the Halo modding community. This is an unofficial resource by modders, for modders, covering Halo Custom Edition and the new MCC mod tools for all titles.

Mods are fan-made modifications to a game that change or add content, or implement unofficial bug fixes and new features. Halo has a 20+ year tradition of modding which is still going strong. On c20 we focus on today's best practices and tools.

Everyone makes mods for different reasons, be it rebalancing the sandbox, learning new skills, expanding content, or plain curiosity. Regardless, we hope this resource can help you.

What's new?

• Tools:
  • Combined HEK and H1A tools under common pages, with callouts on differences.
  • Listed obsolete tools in once place to cut down on junk pages.
  • Documentd Deathstar deprotector.
  • Centralized mod tools installation.
• Tags:
  • Added actor type definitions.
  • Explained shader_model change color.
  • Added descriptions for various tag fields.
  • Added explanation of aim assist.
• Scripting:
  • Updated some examples on the scripting page to be clearer.
  • Added a page with advanced scripting techniques.
  • Added more limits and better described existing ones.
  • Documented the Halo Script Preprocessor.
  • Added descriptions for some functions and globals.
• Engine:
  • Listed all game_variant options for testing MP modes in Standalone.
  • Updated descriptions of game state, added glow datum.
  • Described AI props and AI actions.
• Guides:
  • Flatter page organization.
  • Reworked some content into a "My first box level" guide.
  • Moved Blender setup and tips to the Blender page, same for the Toolset.
  • Added a map porting overview.
  • Added troubleshooting of "waiting for space to clear".
• Other:
  • Added an overview of the sealed world rules.
  • Moved the scale and unit conversions page and improved descriptions of units.
  • Improved descriptions for H1 materials and symbols.
  • General editing to be less Custom Edition-centric, be more clear, fix typos, add cross-references, etc.
  • Mobile-friendly interface with swipe gesture support.

Getting started

New to modding? Check out the general information section. Each other section in the sidebar will allow you to explore game-specific guides and reference materials.

Featured guides:

• Creating a custom Halo 1 level
• Creating a custom Halo 1 skybox
• Creating a custom Halo 2 level
• Creating a custom Halo 3 level