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
- Puzzle-Cubesby Inso1984Modding Resources / Details & Decorumupdated 6 y ago
- starry nightby komaokcModding Resources / Skyboxesupdated 6 y ago
- mpa109by KaratekaeferModding Resources / Skyboxesupdated 18 y ago
- effect_mapby $uRf3rMaps / Developer & Test Mapsupdated 7 y ago
- lakeboxby komaokcModding Resources / Skyboxesupdated 18 y ago
- frozenby komaokcModding Resources / Skyboxesupdated 18 y ago
- dreamy oceanby komaokcModding Resources / Skyboxesupdated 18 y ago
- night oceanby komaokcModding Resources / Skyboxesupdated 18 y ago
- Wake up movmentby ShirkModding Resources / NPCs & Scripted Sequencesupdated 6 y ago
- Dark toon skyby (=Faithless=)Modding Resources / Skyboxesupdated 5 y ago
- Bus_hl2_Driveableby simPyModding Resources / Vehiclesupdated 6 y ago
- Exploding Mill Houseby AmaroqOkamiModding Resources / Buildings & Structuresupdated 7 y ago
- medieval prefabsby Colt_Modding Resources / Buildings & Structuresupdated 18 y ago
- Real Trainby sierramonModding Resources / Vehiclesupdated 7 y ago
- Map the firstby Groovy PantsMaps / Developer & Test Mapsupdated 7 y ago
- simpsons_sky_v2by ph1l-dkModding Resources / Skyboxesupdated 5 y ago
- simpsons_skyby ph1l-dkModding Resources / Skyboxesupdated 5 y ago
- Lab double doorsby killer89Modding Resources / Doors & Windowsupdated 7 y ago
- Grimm Nightby BurnfingersModding Resources / Skyboxesupdated 14 y ago
- fade out n' inby RatchettModding Resources / Inputs & Functionalsupdated 18 y ago
- gm_serpent_trailby OffTheRoadMaps / Developer & Test Mapsupdated 5 y ago
- Vortigaunt Generator Chargeby ViralHatredModding Resources / NPCs & Scripted Sequencesupdated 6 y ago
- Futuristic Deskby CKY2KModding Resources / Furnitureupdated 6 y ago
- 90 surfaceprop texture pack +by CoolFENIXModding Resources / Developerupdated 7 y ago
- stormymountain_hdrby komaokcModding Resources / Skyboxesupdated 18 y ago
- swampbox_by komaokcModding Resources / Skyboxesupdated 18 y ago
- icebergsby komaokcModding Resources / Skyboxesupdated 18 y ago
- Varion 0.5 (Beta)by DucksterStandalone Modsupdated 5 y ago
- mpa108by KaratekaeferModding Resources / Skyboxesupdated 5 y ago
- Pack of Postersby DILFModding Resources / Decalsupdated 17 y ago
- Blizzardby Hitman in PyjamasModding Resources / Skyboxesupdated 5 y ago
- Mirrors_Edge_Source_Beta0.9by Kosai106Standalone Modsupdated 6 y ago
- combine_v_zombiesby TappMaps / Developer & Test Mapsupdated 7 y ago
- Halo skybox (day)by BurnfingersModding Resources / Skyboxesupdated 14 y ago
- mpa106by KaratekaeferModding Resources / Skyboxesupdated 5 y ago
- mpa105by KaratekaeferModding Resources / Skyboxesupdated 5 y ago
- mpa104by KaratekaeferModding Resources / Skyboxesupdated 18 y ago
- lake_oceanby komaokcModding Resources / Skyboxesupdated 5 y ago
- ocean_mountainby komaokcModding Resources / Skyboxesupdated 18 y ago
- strandedby komaokcModding Resources / Skyboxesupdated 18 y ago
- Zombie riseby SFArielMaps / Example Mapsupdated 5 y ago
- lost at seaby komaokcModding Resources / Skyboxesupdated 18 y ago
- HL2 Rotating Thingby robotboy655Modding Resources / Doors & Windowsupdated 7 y ago
- HL2 Vending Machineby robotboy655Modding Resources / Inputs & Functionalsupdated 18 y ago
- Sony Ericsson W610iby robotboy655Modding Resources / Details & Decorumupdated 6 y ago
- mms_sky05by AmstaFFModding Resources / Skyboxesupdated 18 y ago
- mms_sky04by AmstaFFModding Resources / Skyboxesupdated 18 y ago
- mms_sky03by AmstaFFModding Resources / Skyboxesupdated 18 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.