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Best games that started as Half-Life mods

These games had humble beginnings, first as mere Half-Life mods, but have since grown into massive phenomena.

Valve adds "all the Team Fortress 2 client and server game code" to its Source mod tools, letting modders "build completely new games based on TF2" and publish the…

Valve has just issued a massive Source SDK update giving modders access to the Team Fortress 2 game code, opening the door ...
The Escapist

Garry’s Mod successor s&box goes open source to aid with development

The spiritual successor to Garry’s Mod, S&box, is being made open source by the developers over at Facepunch Studios. It’s a slightly odd move for a games studio to do with an actively in-development ...
VPEsports

Garry’s Mod 2 has finally found a release date — we’re waiting for it in 2026

Garry's Mod 2 arrives in April 2026. Experience C# modding and Rubikon physics for $20. Will your old mods survive? Find out now!