Source EngineMods
Source Engine
Source Engine mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
1,445 mods · newest update 29 Aug 2026
- Gravity Gun Cannonby BigDogModding Resources / Inputs & Functionalsupdated 6 y ago
- Panel Building Prefabsby MrTims1324Modding Resources / Buildings & Structuresupdated 8 mo ago
- Art Building Zone Prefabby VEESOORModding Resources / Buildings & Structuresupdated 7 y ago
- Unreal Tournament 2004 SkyboxesModding Resources / Skyboxesupdated 2 mo ago
- GAMEMAZE3DˢᵒᵘʳᶜᵉStandalone Modsupdated 2 mo ago
1.4k mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.