Dev Builds


Metamod:Source uses rolling releases, and updates are continuous. Updates to stable versions of MM:S are small and non-disruptive. It is generally recommended to run the latest stable build, however, it is not necessarily urgent to upgrade when a newer build appears.

These are unstable, development MM:S builds. For stable builds, see this page instead.

Latest downloads for version 1.12 - build 1221:



Metamod:Source's PDB Symbol Server: https://mms.alliedmods.net/symbols/.
Click here to see how to use this URL in Visual Studio. The URL is not web-browseable.

Latest 20 Builds from 1.12 Branch (Click here for all)

Build DownloadChange Details Src
1221 Fix build attempting to run for s2
1219 Fix clang ref in CI
1217 loader: Detect HL1MP and SDK2013(2025) mods as HL2:DM for now
1216 Tweak game detection for MCV and Blade (fixes #200)
1215 Port S1 tf2/css/dods/hl2dm build fixes from master
1211 Trigger build for hl2sdk-hl2dm update
1210 chore: Add another build dir pattern to .gitignore
1208 fix(sourcehook): Disable tests on linux x64 for now
1205 Update to latest hl2sdk-manifests
1204 undo the compiler flags change
1194 Trigger build for hl2sdk-l4d2 changes
1193 Trigger build for L4D2 changes (#180)
1192 Fix using updated SdkTarget in core/AMBuilder
1190 Trigger build for hl2sdk-manifests changes
1189 Use clang-14 to work around a PLT/GOT bug.
1188 Clean up the SDK detection algorithm to fix hl2dm errors.
1185 Fix minimal rebuilds on buildbot.
1184 Fix Windows build.
1181 Restrict C++ linker workarounds to Linux.
1180 Fix linker issues.
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