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

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

Valve and Microsoft have come to an agreement to waive the Havok Engine fee which will make modding games like Team Fortress 2 and Half-Life: Alyx easier. In a tweet from @TF2CCWiki - who reached out ...