Game
Source Engine
Versions, mod loaders and mod compatibility for Source Engine.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
- Mods indexed
- 1.4k
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
Most popular
This source publishes no download figure, so these are ranked by how many people saved or subscribed to them.
- HL2 Redux Arms ResourceModding Resources / Models & Textures
- S.T.A.L.K.E.R. All ModelsModding Resources / Models & Textures
- HD Over-Detailed Brushwork WallsModding Resources / Buildings & Structures
- sky56Modding Resources / Skyboxes
- Cut HL2 Garbage Composite PropsModding Resources / Models & Textures
- Water SourceModding Resources / Water & Fluids
- Apartment building 5 floorsModding Resources / Buildings & Structures
- Tropospheric BoxesModding Resources / Skyboxes
- Brick textureModding Resources / Textures
- Realsky3 (HDR)Modding Resources / Skyboxes
- New water for CS:SModding Resources / Water & Fluids
- Realsky6_HDRModding Resources / Skyboxes
- 4 metal texturesModding Resources / Packs & Bundles
- Surfaceprop Tool Texture PackModding Resources / Developer
- Half-life 2 Styled DecalsModding Resources / Models & Textures
- realsky1Modding Resources / Skyboxes
- HD Refractive Shattered GlassModding Resources / Textures
- Pixelitz HL2 HEV Arms RemakeModding Resources / Models & Textures
- Pixelitz HL2 Gravity Gun RemakeModding Resources / Models & Textures
- Half-Life 2 - Extended MaterialsModding Resources / Textures
- HL2 Unused PropsModding Resources / Models & Textures
- Metro 2033 All ModelsModding Resources / Models & Textures
- mr.who & komaokc hybridModding Resources / Skyboxes
- [HL2 Survivor] AssetsModding Resources / Models & Textures
Browse all 1.4k Source Engine mods Sortable by downloads, rating and date.
Why Source Engine mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Source Engine mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.