Install Sourcemod/Metamod CS2 plugins

Metamod:Source is a plugin loader that sits between the game engine and gameplay. SourceMod was the historical framework under Source 1; on CS2 (Source 2), it is replaced by CounterStrikeSharp, which provides an equivalent C# API.

Cause / The problem

Without Metamod, you cannot install any admin plugin, community anti-cheat, or custom game mode. On CS2, SourceMod Source 1 plugins do not work: you need CounterStrikeSharp.

Solution

1. Download Metamod:Source v2 (master branch / dev build) from sourcemm.net — version 1.x does not support Source 2.
2. Extract the archive into your server’s game/csgo/ folder. This creates an addons/metamod subfolder.
3. Verify loading: restart the server, open the console and type meta. You should see the list of Metamod plugins (empty at first). If nothing shows up, the vscripts or the metaplugins.ini file is misplaced.
4. For CS2, install CounterStrikeSharp (the SourceMod replacement):
   • Download the release from the CounterStrikeSharp GitHub.
   • Extract into game/csgo/addons/counterstrikesharp/.
   • The plugins/ folder will hold your compiled .dll / plugin files.
5. For CS:Source, install classic SourceMod:
   • Download SourceMod 1.11 from sourcemod.net.
   • Extract into cstrike/addons/sourcemod/.
   • Plugins go in addons/sourcemod/plugins/ (.smx).
6. Add an admin: edit addons/sourcemod/configs/admins_simple.ini (SourceMod) or counterstrikesharp/configs/admins.json (CS2). Grant the z flag for full admin.
7. Test in game: type sm_admin in the console to open the administration menu.

Update Metamod and CounterStrikeSharp after every major CS2 update: a server inconsistent with the Metamod version causes a silent load failure.