id-Software/DOOM-3-BFG

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

5370 stars · 1443 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

The official GPL-3.0 source code release of Doom 3 BFG Edition, id Software's first-person shooter built on the id Tech 4 engine, written in C++. It ships engine and game code only; game assets must be purchased separately, and Steam integration, Bink video, and the 'Carmack's Reverse' stencil-shadow backend are excluded.

Use cases

• compile and play doom 3 bfg from source with my steam game data
• create a source port or updated fork of the doom 3 engine
• study how a professional AAA shooter engine and renderer are implemented
• port the doom 3 engine to other platforms or modern compilers
• build mods or a new game on top of the id tech 4 engine
• read the source behind carmack's stencil shadow and virtual texture rendering

When to choose

• You want to learn engine architecture from a classic, complete commercial shooter codebase
• You want a base for a community source port, mod, or modernized fork of Doom 3 BFG
• You own the game data and want to build the game executable yourself

When to avoid

• You need Steam features, Bink video, or stencil shadows via the depth-fail method, which are stripped from this release
• You want an actively maintained engine - the README itself points to improved community forks as better starting points
• You expect a playable game out of the box - game data is not included and must be bought via Steam

Facets

application · maturity maintenance

game-engine game graphics gaming-tools graphics windows cross-platform doom-3 id-tech-4 first-person-shooter fps source-port engine-source-code opengl gpl id-software retro-gaming game-development desktop

Member repositories

For agents

markdown · JSON · MCP: product_card(name="id-Software/DOOM-3-BFG")