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
- Monorail tram v1by AsG_AlligatorModding Resources / Traps & Trickeryupdated 6 y ago
- Cargo Plate v1by AsG_AlligatorModding Resources / Bridgesupdated 6 y ago
- e3_bugbaitby freredarmeMaps / Developer & Test Mapsupdated 7 y ago
- realsky1by komaokcModding Resources / Skyboxesupdated 15 y ago
- Improved-Water [UPDATED]by Bruh303Modding Resources / Water & Fluidsupdated 7 y ago
- Ussr shelterby EddieLTUModding Resources / Buildings & Structuresupdated 16 y ago
- Sky55by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky51by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky49by komaokcModding Resources / Skyboxesupdated 5 y ago
- Sky27by komaokcModding Resources / Skyboxesupdated 16 y ago
- Simple Bunkerby EddieLTUModding Resources / Buildings & Structuresupdated 16 y ago
- Worldcraft prefabsby EddieLTUModding Resources / Buildings & Structuresupdated 16 y ago
- Backround entityby EddieLTUModding Resources / NPCs & Scripted Sequencesupdated 6 y ago
- Sky48by komaokcModding Resources / Skyboxesupdated 15 y ago
- Sky47by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky46by komaokcModding Resources / Skyboxesupdated 16 y ago
- Lunar_sky_01by t.I.P.Modding Resources / Skyboxesupdated 16 y ago
- Sky45by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky44by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky43by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky42by komaokcModding Resources / Skyboxesupdated 16 y ago
- Testing Textures Pack 1by PiedoomModding Resources / Developerupdated 7 y ago
- Skybox texture packby komaokcModding Resources / Skyboxesupdated 15 y ago
- Zodiacby DevieusModding Resources / Castaway Mapsupdated 6 y ago
- Sky41by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky39by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky38by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky50by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky37by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky36by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky35by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky34by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky33by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky32by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky40by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky31by komaokcModding Resources / Skyboxesupdated 5 y ago
- Sky30by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky29by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky28 (LDR version)by komaokcModding Resources / Skyboxesupdated 16 y ago
- sky28_HDRby komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky26_HDR (yes, HDR!)by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky25by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky17by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky24by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky23by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky15by komaokcModding Resources / Skyboxesupdated 16 y ago
- Sky14by komaokcModding Resources / Skyboxesupdated 16 y ago
- sdk_buss_stop (fixed)by SGC BSSaarModding Resources / Vehiclesupdated 7 y 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.