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Valve Unleashes Team Fortress 2 Code: Modders Celebrate

Author:Kristen Update:May 23,2025

In an exciting development for the gaming community, Valve has unveiled a monumental update to the Source SDK, integrating "all" of the Team Fortress 2 (TF2) client and server game code. This significant release empowers players to craft entirely new games from the ground up using the source code of TF2. Unlike modifications through the Steam Workshop or local content mods, this update provides modders with unparalleled freedom to alter, expand, and even completely reimagine Team Fortress 2 in any conceivable way.

It's important to note, however, that any creations made with this new access must be offered for free on a non-commercial basis. This means that while modders can't profit from their work, they have the opportunity to publish their creations on the Steam Store, where they will appear as distinct new games within the Steam game list. Valve emphasizes the importance of respecting the community's contributions to TF2, particularly the vast array of items created through the Steam Workshop. They encourage modders to maintain compatibility with players' existing TF2 inventories where feasible, ensuring that the hard work of the TF2 community continues to be valued.

In addition to this groundbreaking update for TF2, Valve is rolling out a comprehensive update to all its multiplayer back-catalog titles built on the Source engine. This includes enhancements such as 64-bit binary support, scalable HUD/UI, prediction fixes, and numerous other improvements that will benefit not only TF2 but also titles like Day of Defeat: Source, Half-Life 2: Deathmatch, Counter-Strike: Source, and Half-Life: Deathmatch: Source.

This update comes on the heels of the release of the seventh and final installment of the Team Fortress 2 comic series in December, after a seven-year wait. The comics have not only provided fans with deeper insights into their beloved characters and narratives but also underscore Valve's ongoing commitment to one of its most enduring franchises.