ValveSoftware/source-sdk-2013

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

9952 stars · 3015 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

Valve's Source SDK 2013, the source code for the Source engine's game layer including Half-Life 2, Half-Life 2: Deathmatch, and Team Fortress 2. It lets developers build and distribute custom Source engine mods on Windows and Linux.

Use cases

• create a Half-Life 2 mod
• build a Team Fortress 2 mod
• learn Source engine game programming
• distribute a mod on Steam
• study Valve's game source code

When to choose

• you want to build a mod for HL2, HL2DM, or TF2 on the Source engine
• you need to compile mods against the Steam Runtime for Steam distribution
• you want to study real shipped game code from Valve

When to avoid

• you want to make a game on a modern engine like Unity or Unreal
• you need a non-commercial-free license - the SDK license is non-commercial only
• you want to modify the engine renderer itself, which is not included

Facets

framework · maturity maintenance

game-engine sdk developer-tools gaming-tools windows cpp source-engine game-modding half-life-2 team-fortress-2 valve mod-sdk game-development linux steam

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markdown · JSON · MCP: product_card(name="ValveSoftware/source-sdk-2013")