Game Feed

42.20.4 STABLE & 42.19.2 UNSTABLE & 41.78.21 LEGACY Hotfixes Released

by AmazingSully

While this update should not break saves, if you encounter any bugs please ensure you can replicate them on a fresh save with no mods installed before reporting them to our team here. FIXES Fixed security vulnerabilities. Mod makers should be aware that as part of this fix, the loadstring and loadstream methods have been removed. If your mods used these methods you will need to update your mods. If you were using these methods to execute code sent from the server, then you will need to create the necessary methods and call them by sending the appropriate commands. If you are unable to replace these methods in your case, please report the issue in the #mod_portal channel of The Official Project Zomboid Discord server, explaining how you were using them As always, discussions regarding this update can be found pinned to the Project Zomboid Discussions Forums here.

42.20.3 STABLE Hotfix Released

by AmazingSully

While this update should not break saves, if you encounter any bugs please ensure you can replicate them on a fresh save with no mods installed before reporting them to our team here. MP Improved server player limit handling, including support for up to 254 players and administrator access when servers are full Fixed an issue that would cause the client to hang on "Loading Map" forever FIXES Addressed multiple causes of a memory leak that could lead to performance degradation and crashes over time If you continue to encounter an out of memory error in a new save, please submit a bug report with your logs and profiler video from debug so the team can investigate Implemented several memory optimisations Reduced instances of black and gray boxes appearing when travelling quickly through the world Additional causes of this issue are still being investigated and will be addressed in a future update Fixed issues that could cause errors during lighting updates. As always, discussions regardin...

Show your Spiffo’s pride, and help us fundraise

by Rockjaw

"Welcome to Spiffo’s, how can we serve you today?"Today we're launching our latest collaboration with the wonderful humans at Makeship. Here’s what’s on the menu:A Chef Spiffo plushie, with that cheeky raccoon looking as happy as can be in his adorable chef’s outfit!Our Spiffo's Restaurant Pin Collection, featuring:A Spiffo’s logo pin ( © Spiffo’s Corporation, 1993) created with a special “layered” effectA ‘Happy Birthday Spiffo’ pinA ‘Spiffo gets his burger on’ pinAnd last but not least, an official keychain with a delightful plushie version of the, uh, Spiffo part of Spiffo’s logo, seen here with all these other exciting official items!Be the envy of your friends! Represent your corporate allegiance with pride! All hail Spiffo!FUNDRAISINGOnce again (and thanks to the generous accountants at the Spiffo’s Corporation), all of our proceeds from this campaign will be donated to Mary’s Meals, a charity dedicated to providing nutritious meals to hungry schoolchildren all around the world.W...

42.20.2 STABLE Hotfix Released

by AmazingSully

While this update should not break saves, if you encounter any bugs please ensure you can replicate them on a fresh save with no mods installed before reporting them to our team here. TECHNICAL/DEBUG Fixed percent symbol handling in files Mods should use %% to display % characters A temporary workaround was implemented to allow both methods of processing, however mod makers should update their mods to use %% to display % characters going forward as this workaround will be removed in a future unstable update Error logs will be populated highlighting the error so mod makers can see what needs to be updated going forward Fixed quick tips displaying % as %% Added memory debug-information when showing fps debug info As always, discussions regarding this update can be found pinned to the Project Zomboid Discussions Forums here.

42.20.1 STABLE Hotfix Released

by AmazingSully

While this update should not break saves, if you encounter any bugs please ensure you can replicate them on a fresh save with no mods installed before reporting them to our team here. MP Improved Lua checksum validation for multiplayer anti-cheat Fixed an issue that caused significant performance problems with chunk unloading on multiplayer servers This should fix most of the bugs players were getting on high-pop servers due to server lag Fixed errors and crashes that could occur when selecting Multiplayer while certain languages were selected Fixed an issue where vehicles could temporarily disappear for players after another player disconnected Fixed an issue that would allow broken B41 worlds to be hosted on B42 servers Fixed an issue where players switching from b41 to B42 could be met with a missing menu FIXES Improved memory usage by reusing discarded world data Fixed a memory leak that could lead to performance degradation and crashes over time If you continue to encounter an out...

Perennial early access game Project Zomboid hit a new concurrent player record after a huge map update added reworked towns, a spooky orphanage and '400 procedural basements'

by Rick Lane

It's been a big week for Project Zomboid, the wildly successful zombie survival sim that, like a doomsday prepper holed up in a fortified basement, simply refuses to leave Steam early access. Its first major build update since 2021 coincided with a slight price increase for The Indie Stone's undead phenomenon, but this didn't stop the game from setting a new record for concurrent players on Steam... Read more.

Project Zomboid peaks at 124k players

by SteamDB

Project Zomboid has peaked at 124,995 concurrent players on 9 August 2026. View charts and more statistics on our website.

The massive Project Zomboid Build 42 is out now

by

Project Zomboid just had a big free upgrade with Build 42 now out in the stable branch, bringing with it an overhaul to various parts of the game. Read the full article here: https://www.gamingonlinux.com/2026/07/the-massive-project-zomboid-build-42-is-out-now/

Build 42.20.0 Stable Released

by AmazingSully

As part of our preparations for the release of Build 42 Stable, we've also released a small security patch for Builds 41 and 42.19. We'd like to thank Jorge Escabias for responsibly disclosing this vulnerability and bringing it to our attention before it could be exploited. We greatly appreciate the time and effort involved in reporting issues like this, which helps us keep the game secure for everyone. There is a small chance this change may affect some mods. If you encounter any compatibility issues after the update, we would ask that mod authors please report them in the mod_portal channel on our Discord so we can investigate. How do I switch back to Build 41? Right-click PZ in your Steam library. Select "Properties". Under "Game Version & Betas" select "legacy41". B42 Feature List The patch notes below cover the changes between 42.19 and 42.20. For an overview of the features and additions introduced between Build 41 and Build 42, check out our feature list here. Please note that B...

B42 CHECKLIST

by nasKo

Tomorrow, Wednesday 29th July, we will be releasing Build 42 of Project Zomboid!This is a quick post to ensure that those who want to continue playing Build 41 are aware of how they can do so with minimal disruption, and indeed to tick off a few other items to be aware of.Apologies for the overall boring post! Hopefully yesterday’s map overhaul excitement counterbalances it a little.THOSE WANTING TO STAY ON 41Build 41 savegames clearly will not be compatible with Build 42.If you are a Build 41 player who wants to minimise disruption on the 42 launch, or a server owner / online player who wants to continue on Build 41, then there is already a beta channel for you (and your players) to move over to before the event.To reiterate: you can safely swap to the Build 41 beta now.To do so:Right-click PZ in your Steam library.Select “Properties”.Under “Game Versions & Betas” select “legacy41”.THOSE WANTING TO FINISH AN UNSTABLE 42.19 GAMEDue to additional map content being added, existing saves ...

42.20: The Big Glow Up

by nasKo

Hi everyone, as previously mentioned Build 42.20 will be coming to the public stable branch this Wednesday, July 29th! For full details on this please check out this announcement blog. A big new part of this is a HUGE new upgrade to the Knox Event Exclusion Zone – that goes way beyond what you have already played during the Unstable beta. Our aim? To create a heavily evolved Knox Country that expands and overhauls the game’s Kentucky setting with new and reworked areas, that feel more lived-in, more natural, and more believable as places that existed long before everything went wrong. So what’s got us to this point? Let’s hand over to Art Director Ayrton Orio to explain: “Since Build 41 the Art Department has been hard at work on expanding the map westward, establishing an ambitious target quality, and revamping many of the existing towns in-game – while also hiring and restructuring.” “Overall Build 42 in the Knox Event Art Department saw four new map artists added to the team (Erika,...

The massive Project Zomboid 'Build 42' update confirmed for July 29

by

The incredibly detailed zombie survival game Project Zomboid is set to level up in a huge way with the proper release of Build 42 on July 29th. Read the full article here: https://www.gamingonlinux.com/2026/07/the-massive-project-zomboid-build-42-update-confirmed-for-july-29/

BUILD 42 STABLE PLANS

by AmazingSully

Project Zomboid version 42.20 will be coming direct to the stable public branch Wednesday, the 29th of July. Details on what this will entail will follow after, by way of celebration, the unveiling of our new Build 42 Steam Store trailer! This has been lovingly crafted by our Art Director Ayrton, captured by Amz, been blessed with 3D renders by Werlias, and received much sound love from Matteo and the team from Arrival. Our thanks too to our voice talent Michael Billington, Gemma Acosta, Jane Perry and Stefan Ashton - all of whom knocked it out of the park. So, onto some further important details on next week's excitement. THOSE WANTING TO STAY ON 41 Build 41 savegames clearly will not be compatible with Build 42. If you are a Build 41 player who wants to minimise disruption on the 42 launch, or a server owner / online player who wants to continue on Build 41, then there is already a beta channel for you (and your players) to move over to before the event. To do so: Right-click PZ in y...