Serious Sam: Siberian Mayhem — patch notes and updates
Stored observation / content update:
Dated developer announcements recorded from Steam. Open the source for the complete update.
| Update | Date | Excerpt / source |
|---|---|---|
| Serious Sam is Back, Baby! Enter the Shatterverse | 2026-03-26 | Hey folks, It's a massive day for everyone at Croteam and Devolver Digital because we get to announce a brand new partnership with Behaviour Interactive, who are working on the next installment of the Serious Sam series. Serious Sam: Shatterverse is their take on the franchise, and a reimagining of the backpedalling mayhem you all love as a roguelite cooperative shooter. With Croteam hard at work on the Talos Principle and an exciting new IP, we're thrilled to have games industry legends at Behaviour Interactive take on the legendary Serious Sam IP as the lead developer on Serious Sam: Shatterverse. Davor Hunski, lead designer at Croteam, lea |
| A Seriously Serious Christmas | 2025-12-23 | From all of us at Croteam, we’d like to wish you a seriously Merry Christmas.May you enjoy the holidays with friends and loved ones, stay full of health, and welcome 2026 with joy, optimism, and a positive spirit for the year ahead.Thank you for being part of our community, and once again, Merry Christmas! |
| Featured Mod - City Of The Pyramids | 2023-03-10 | Hello and welcome to the new episode of Featured Mod! For the first time in our series, we will be featuring a campaign for Siberian Mayhem! Today’s mod is “City Of The Pyramids”- a one-level campaign made by Neiser! The story is very simple- you’re taken to Ancient Egypt once again where Mental’s forces are running wild and it's up to you to save the planet by eradicating them! “City Of The Pyramids” recreates Egypt in all its beauty and also takes elements from all four Serious Sam titles. For a moment it will make you forget that you are playing a community mod and not an official Serious Sam level! So what are you waiting for? Go back to |
| Anniversary Update 1.07 | 2023-01-25 | Hello, folks! Today is a very special day for all of us here at Timelock Studio, because exactly one year ago, Serious Sam: Siberian Mayhem hit the stores worldwide. You can say our brainchild has its first birthday, and what a journey that was... While the road was long and full of hard work, we are extremely pleased by the results and your warm welcome. Our team constantly updated and supported Siberian Mayhem throughout this year, polishing it and adding all sorts of new content: from new player models and seasonal events to entirely new game mode. And we cannot thank our lovely community enough for your love and support! We appreciate eac |
| Hotfix 1.06c | 2022-12-29 | Fixed an issue that caused increased player speed on NG++ and further to reset to normal speed after watching a cutscene; Fixed an issue that caused allied Draconian Burner’s AI to randomly break; Fixed an issue where some of the enemies’ original attachments would not show up if a seasonal savegame is loaded without seasonal content available (disabled/out of season); Fixed enemy navigation issues and a certain invisible wall in Crime and Punishment; Various visual fixes and adjustmetns in Siberiade; Fixed male underwater death sounds on female player models. We are planning to make NG+ available ouside of Serious difficulty in the next patc |
| Hotfix 1.06b | 2022-12-22 | Fixed Serious Editor incorrectly displaying text information/icons. Added fireworks to make discovering Christmas areas on levels easier. Fixed a few instances of drones getting stuck out of player’s view and blocking level progression. Improved displayed message in situations when the player has the “Way to Go” button, used to open NG+ upgrade menu, unbound. Adjusted Lasergun “overheating” sound effects and Deathray visual effects. Fixed the bug where another player could enter Minimech while it’s already occupied in Song of the Stormbringer in Co-Op. Fixed a few navigation issues in Crime and Punishment. |
| Merry Christmas Update 1.06 | 2022-12-18 | Ho-ho-ho! Santa Sam is back in this Merry Christmas update! But this time Santa has a big mission - he has to find a super gift for you. Yes, exclusively for you! A powerful Freezer-Burner gun! If you want to play with this toy, you'll have to help Santa Sam! Here are the instructions: Find a lonely Christmas tree in each level and slap some decorations on it; Explore a fairytale universe full of wonders (and survive); Pick up a piece of the Freezer. Once you've collected all the fragments, the Freezer is yours! Make sure that you are on a fresh playthrough, as Christmas trees will not appear on savegames created on previous versions of the g |
| Hotfix 1.05b | 2022-10-27 | Bug fixes: Added missing translations for NPC alternative voice lines. Fixed an error in seasonal script that could sometimes appear in Cooperative for clients. Fixed a relocated secret Hoverboard in Crime and Punishment not counting towards total secrets statistics. Note, the secret still will not count in statistics, if you are playing on a save that was created on previous game version. Visually updated a specific ugly terrain spot in Crime and Punishment. |
| Halloween Spooky Update 1.05 | 2022-10-25 | It's a spooky month! A seriously spooky month, but Serious Sam is not afraid of neither creepy skeletons, nor flying pumpkins. But what about you? Let’s figure it out in this Spooky Halloween Update! This update delivers a little bunch of improvements and bug fixes as usual, but also features a Halloween special event. This event will be active from October 25 00:00 UTC, up until November 4th 23:59 UTC, but if you miss it - you'll be able to check it out next year, as it's not going away. What’s New: Halloween-themed game menu, Netricsa and enemies. If you're scared, turn off seasonal content in the Game Options menu and restart the game; New |
| Hotfix Update 1.04b Changelog | 2022-08-02 | Fixed an issue where the player's view would randomly shift when playing in a Cooperative game. Fixed an issue where certain items in the game would become unpickable after loading a savegame. Fixed a bug where the Crossbow would sometimes lose some of its visual effects on clients in a Cooperative game. Fixed a bug where the clients in a Cooperative game would sometimes be unable to shoot while using the Babymech. Fixed slightly misplaced plasma gate on the bridge on the Crime and Punishment level. |
| Serious Sam: Siberian Mayhem Update 1.04 is Live! | 2022-08-01 | Hi, folks! if you see this message, that means... Yeah, another cool update! This update delivers a bunch of improvements and bug fixes, as well as gameplay and visual tweaks based on community and testers' feedback. Siberian Mayhem once again becomes a little bit cooler and a lot more serious! Full changelog What's New: New shotgun destructions for beheaded soldiers and male gnaars. New Perun crossbow destructions for all enemies. Updated cannon destructions for some enemies. Players will now automatically start climbing ladders when approaching them, instead of having to press the 'Use' button. Also, added ladder climbing sounds. Wait, do w |
| Update 1.03c Changelog | 2022-05-10 | Fixed the game sometimes stuttering with NVidia GPUs on some systems. Fixed frequent crashes on Roadside Picnic level. Reduced performance impact from T.A.C.T. explosions. Custom controller layout will now have standard bindings by default, so the player can adjust the config rather than recreate it from scratch. Fixed a bug when Hoverboard charge indicator sometimes would not disappear after player already dismounted Hoverboard. Fixed a bug with minefield pre-explosion sounds missing on clients in Cooperative mode. Fixed a bug when a client in Cooperative mode could not teleport from classic secrets or Alpha and Omega sidequest while riding |
| Hotfix Update 1.03b Changelog | 2022-05-04 | Fixed an issue with survival achievements not awarding. If you have already earned some survival medals, you will get corresponding achievements upon starting any level. Fixed grenade launcher double item on Castle of Pain survival level. Fixed birds sometimes flying through walls on Kleer Fortress survival level. Fixed enemies sometimes being too dark on Monkey Canyon survival level. Dragon Gates music setup is now more fitting to the gameplay. |
| Siberian Mayhem 1.03 delivers Survival, modding tools, and much more! | 2022-05-02 | Hey, folks! It's been really cold on the news lately, but fear not – something really hot comes to warm you up this May. We've been quite busy with another big update we promised a long time ago for all of you Siberian Mayhematics, and the time has finally come. Actually, the initial plan was to release it tomorrow, but we are kind of bad when it comes to proper calendar scheduling... So the "Tomorrow" Update comes today! We've got plenty of stuff prepared for this patch. Survival Mode finally finds its way to the game, with 6 new maps ready to test your skills & plunge you into some hectic non-stop action. New achievements and unlockables we |
| Serious Sam: Siberian Mayhem Update 1.02 is Live! | 2022-02-15 | Hi everyone! Patch 1.02 is now live! It comes with shiny Steam Trading Cards that you can collect and use to craft some cool badges, backgrounds, and custom emojis! The patch delivers plenty of bug fixes and performance improvements, as well as a bunch of gameplay improvements based on community feedback! We also know how eager our modding community is for some modding tools. We’ve already seen some mods being ported from Serious Sam 4 to Siberian Mayhem and we would like to let you know that we are working on delivering Siberian Mayhem modding tools as soon as possible. Full Changelog What’s New TRADING CARDS! WOOOOOOOOO! Stability and Perfo |
| Siberian Mayhem 1.01 is Live | 2022-01-28 | Dear friends, Siberian Mayhem was launched three days ago to a very warm welcome. While we have always believed we are creating something special, the reception has motivated us more than we ever thought possible to keep working on making Siberian Mayhem the best Serious Sam game it can be. The feedback we have been receiving since launch has proven to be invaluable, and we want to thank you for helping us prepare this first update that brings some relatively small but very important changes that will make the game work better across many different configurations. We'll continue working on future updates and fixes as issues come up, so please |
| Siberian Mayhem is Available NOW! | 2022-01-25 | |
| Serious Sam: Siberian Mayhem Launches January 25th | 2022-01-10 | Hi all! More than any time before, I bet you didn’t see this one coming. While there was a lot of talk about the next big thing coming for SS4 within the Serious Sam community, nobody came even close to what we are revealing today. Serious Sam: Siberian Mayhem is a stand-alone expansion to Serious Sam 4, working just as well whether you’ve played SS4 or not. Siberian Mayhem cranks the action up to 11. It’s a hybrid experience ready to deliver explosive fun to fans of classics, and the latest installments to the series. Siberian Mayhem is very important in another way. This game was designed, and its development has been led by some of the mos |