AlliedModders is an open-source development community. We are focused on server-side modifications to any and all games on the Half-Life 1 and Half-Life 2 platforms. Our primary projects are:
SourceMod is an extensible, actively maintained server administration and scripting project for Half-Life 2. Its goals are clean API, good documentation, and high performance.
AMX Mod X is an extensible server administration and scripting project for Half-Life 1. It is now maintained on a need-basis only.
Metamod:Source is a powerful C++ plugin loader and API for Half-Life 2. It wraps a highly versatile library for detouring virtual functions.