Tools

The launcher installs mods. These are the tools that make them — standalone apps and commands that read your installed copy of Halo Campaign Evolved directly, on their own release cadence.

Example super jump mod using tag edits to the biped jump velocity

MJOLNIR Tag Editor

v0.9.0Download

Browse and edit the Blam tags, textures and audio inside your installed game.

  • Every asset, four ways in
  • Values you can trust
  • Edits that verify themselves
View tool

mjolnir CLI

Build from source

Inspect and patch tag data from the command line.

  • Find your way around
  • Set a field by path
  • Check the whole install
View tool

Install them from the launcher

The launcher's Tools view installs and updates every tool that publishes a build, checks the download against its published hash, and keeps it beside your game — so you do not have to track versions by hand.

Get the launcher

More to come

Anything that publishes a manifest here becomes installable from the launcher, so new tools land without a launcher release. If you are building one, or want one built, say so — the roadmap is set in the open.