After months on the unstable branch, multiplayer for Build 42 reached the default branch at the end of July.
Project Zomboid's Build 42 became the default stable branch on 29 July 2026 with version 42.20, and multiplayer came with it. Multiplayer had been available on the unstable branch since December 2025.
What it means for servers
- Dedicated servers no longer need a beta flag to run Build 42
- Build 42 needs noticeably more RAM and CPU than Build 41, so server owners are budgeting 8 GB and up for mid-sized groups
On 4K60.com
Project Zomboid is on our phase 2 list. If you want it sooner, say so in the Discord.



