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

Valve unleashes a colossal Source SDK update, granting full access to Team Fortress 2's client and server code. This unprecedented move empowers modders to create entirely new games based on TF2's foundation.

Unlike previous methods like Steam Workshop, this update provides complete control, allowing for extensive modifications, expansions, and even complete rewrites of Team Fortress 2. While commercialization is prohibited – all creations must be non-commercial and free – these new games can be published on the Steam Store, appearing as distinct entries in the Steam game library.

Valve's rationale, as detailed in a blog post, centers on respecting the community's significant contributions to TF2's content and player inventories. They urge mod creators to maintain this respect, refraining from monetizing efforts built upon the work of Workshop contributors. Ideally, many mods will retain compatibility with players' existing TF2 inventories.

This update isn't limited to TF2. Valve is also implementing a major upgrade across its back-catalog of multiplayer Source engine titles. This includes the addition of 64-bit binary support, scalable HUD/UI, prediction fixes, and numerous other enhancements for Team Fortress 2, DoD:S, HL2:DM, CS:S, and HLDM:S.

The news arrives following the December release of the seventh and final chapter in the long-running Team Fortress 2 comic series – a seven-year endeavor that showcased Valve's enduring commitment to this iconic franchise. The comics served as a valuable source of lore and character development, further solidifying TF2's place in gaming history.