Valve has opened up Team Fortress 2's full client and source code, encouraging players to 'change, extend, or rewrite' the ...

A Team Fortress 2 sourcemod attempting to build Team Fortress 2 back to its true golden age (2007-2010). The goal is to deliver a curated, faithful TF2 experience–refining its visuals and doing our ...

With all the hopium-fueled hubbub about Half-Life 3 recently, it's worth remembering where the majority of that hype has stemmed from - new Source 2 code being datamined from updates to the likes of ...