Team Fortress 2 Modders Rejoice as Valve Releases Full Client and Server Game Code

Surprise! Valve has unleashed a massive update to the Source SDK, generously including the complete client and server game code for Team Fortress 2. This opens the door for players to craft entirely new games using this foundation. Unlike Steam Workshop or standard local mods, this update grants modders unprecedented freedom to modify, expand, and even completely rewrite Team Fortress 2 in virtually any conceivable way.

While commercialization is off the table—meaning any derivative works must be freely distributed on a non-commercial basis—creations can still be published on the Steam Store, appearing as distinct entries within Steam's game catalog.

In a blog post, Valve explained their reasoning: "Players have invested significantly in their TF2 inventories, and the Steam Workshop community has contributed a vast amount of content. The majority of in-game items are a testament to the TF2 community's hard work. To honor this, we're asking TF2 mod creators to respect that connection and refrain from creating mods designed to profit from the efforts of Workshop contributors. We hope many mods will continue to allow players access to their TF2 inventories, where appropriate."

Furthermore, Valve announced a substantial update to its entire back-catalog of multiplayer Source engine titles. This update introduces 64-bit binary support, scalable HUD/UI, prediction fixes, and numerous other improvements across Team Fortress 2, DoD:S, HL2:DM, CS:S, and HLDM:S.

Last December, after a seven-year hiatus, the seventh and final chapter of the Team Fortress 2 comic was released. These comics have served not only as a rich source of lore for fans, but also as a symbol of Valve's enduring commitment to one of its longest-running franchises.