42.19.0 is live on the unstable branch, and the multiplayer work in it is the direct follow-on to what we shipped in 42.18. The Indie Stone has positioned this one as another foundational update — performance, stability, bug fixing, with some controller-usability work added in — and the multiplayer section is where most of our cycle landed. Two foundation passes back-to-back is the kind of pace you only get to when the architecture work has settled enough to actually go fix things.

Our team has been working on the Project Zomboid multiplayer layer continuously since the Build 42 MP rollout in December, and 42.18.0 — now live on the unstable branch — is one we put significant effort into. The Indie Stone has framed this update as a modding and bug-fixing pass with some light balance changes, but the multiplayer section is by far the longest in the changelog, and most of our work this cycle is reflected there.

Build 42.17.0 is out on the unstable branch — bringing server-side sprinter support, new sandbox spawn options, and our latest round of multiplayer stability work.

Build 42.16.0 is a sweeping balance update covering Occupations, Extinction mode, Tailoring, and Firearms — a fresh start is recommended.

Build 42.15.0 introduces four named difficulty presets, six new firearms, and a wave of multiplayer stability improvements.

Build 42.14.0 is out with a comprehensive ammunition rework, rebalanced firearms, and dozens of multiplayer and performance fixes.

Build 42 Unstable now includes full multiplayer — featuring server-side player inventory to eliminate item-duplication exploits.

FatalZone is now available on Nintendo Switch — the full roguelite experience optimised for handheld play.

Our port of the auto-shooter roguelite FatalZone is now live on PlayStation 4, PlayStation 5, and Xbox — in partnership with 101XP.

Vertex Break will be attending GamesCom 2025 in Cologne, Germany — come meet us at the leading international gaming event!