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@StrataSource

Strata Source

The Strata Source team behind the Strata Source game engine.

This is the GitHub organization for Strata Source, an advanced, community-developed branch of the Source Engine. Here you can find our open-source components, such as our issue trackers, documentation, wiki software and some of our tooling. Contributions are always welcome! Please see our Contribution Guidelines to get started.

Games using Strata Source include Momentum Mod, Portal 2: Community Edition and Portal: Revolution.

Quick Links

Contribution Guidelines

We ask that you follow these guidelines when contributing to any of our repositories:

  • Use the rebase workflow to avoid unnecessary merge commits. This helps us keep a clean & linear commit history that's easy to review. We understand that this workflow can be intimidating for those new to git; please let us know if this is the case, we can help you clean up branch history before merging. See this tutorial for an explanation of the rebase workflow.
  • Avoid excessively large commits, as it's difficult for us to review.
  • Commit messages should follow conventional commits. We aren't super strict with these, but we prefer commits that are prefixed with feat: fix: or chore: at least.
  • Commit messages should be descriptive. Avoid generic and nondescript messages like "fix: fixed bug" or "fix: mistake".

Pinned Loading

  1. Engine Engine Public

    Issue tracker for Strata Source

    63 3

  2. Portal-2-Community-Edition Portal-2-Community-Edition Public

    Task tracker for Portal 2: Community Edition

    238 4

  3. Wiki Wiki Public

    Markdown pages for the wiki

    Python 17 27

  4. FGD FGD Public

    Forked from TeamSpen210/HammerAddons

    The FGD + Hammer resource files for games built on Strata Source.

    Python 23 20

  5. vtex2 vtex2 Public archive

    Deprecated in favor of: https://github.com/craftablescience/MareTF

    C++ 61 11

  6. sample-content sample-content Public

    Example assets and code for Strata Source games

    AngelScript 4 1

Repositories

Showing 10 of 77 repositories
  • p2ce-panorama-ui Public

    Panorama user interface for Portal 2: Community Edition

    StrataSource/p2ce-panorama-ui's past year of commit activity
    TypeScript 19 MIT 24 33 7 Updated Sep 8, 2026
  • pano-typed Public

    Near-full coverage of Panorama's APIs and data structures with Typescript definitions.

    StrataSource/pano-typed's past year of commit activity
    CSS 8 MIT 2 0 2 Updated Sep 6, 2026
  • FGD Public Forked from TeamSpen210/HammerAddons

    The FGD + Hammer resource files for games built on Strata Source.

    StrataSource/FGD's past year of commit activity
    Python 23 51 14 (1 issue needs help) 5 Updated Sep 6, 2026
  • Wiki Public

    Markdown pages for the wiki

    StrataSource/Wiki's past year of commit activity
    Python 17 27 15 5 Updated Sep 5, 2026
  • p2ce-mod-template Public

    Template P2CE mod

    StrataSource/p2ce-mod-template's past year of commit activity
    ReScript 15 9 0 1 Updated Sep 2, 2026
  • p2ce-addons Public

    Local addons shipped with Portal 2: CE

    StrataSource/p2ce-addons's past year of commit activity
    Squirrel 8 CC0-1.0 9 0 0 Updated Aug 31, 2026
  • angelscript Public

    AngelScript fork with changes needed for Strata Source

    StrataSource/angelscript's past year of commit activity
    C++ 7 0 0 0 Updated Aug 25, 2026
  • libbinkdec Public
    StrataSource/libbinkdec's past year of commit activity
    C 0 LGPL-2.1 0 0 0 Updated Aug 23, 2026
  • strata-wiki Public

    The wiki site for the Strata Source Official Wiki

    StrataSource/strata-wiki's past year of commit activity
    Svelte 4 4 5 2 Updated Aug 22, 2026
  • libwebm Public Forked from webmproject/libwebm

    Mirror only. Please do not send pull requests.

    StrataSource/libwebm's past year of commit activity
    C++ 1 BSD-3-Clause 91 0 0 Updated Aug 15, 2026