- Steam App
- Zombie Panic! Source (17500)
- Event type
- patch note
- Published
- 30 October 2025 - 19:20:09 UTC
- Source
- steam_community_announcements
Hello everyone! We're very excited to introduce the long-awaited v3.3 patch and to announce our plans to migrate Zombie Panic! Source to the latest 'TF2 SDK' update-branch!What does this mean?Back in February, Valve released a massive update to the Source SDK which adds Team Fortress 2's client and server game code, making it possible for modders to change or rewrite TF2 however they like. This update brought a lot of cool new features, changes, and improvements to all of Valve's multiplayer Source engine titles, such as 64-bit support, Steam Networking (Peer-to-Peer) and many more.Our programmers are currently in the process of bringing all of those features into ZPS and they will arrive in future updates when they are ready. We'll have a detailed dev blog explaining each one of those new features, what we've been working on, and new upcoming content in the near future!What's new?Today'...