Serious Sam: Siberian Mayhem Update is Live; Adds Survival Mode, 8 New Characters, and Modding Tools

Battle through six different maps with characters like Devolver Dude, Serious Sam Classic and Kleer Kurt with new Achievements to unlock.

Posted By | On 03rd, May. 2022

Serious Sam - Siberian Mayhem

Croteam and Timelock Studio have released a sizable new update for Serious Sam: Siberian Mayhem, the standalone follow-up to Serious Sam 4. It adds Survival Mode with six different maps along with new Achievements and eight new playable characters. Modding tools and support for the Steam Workshop have also been added. Check out the trailer below.

The new maps include Kleer Fortress, The Snowrider, Monkey Canyon, Dragon Gates, Horus Sanctuary and Castle of Pain. As for the new characters, you have Serious Sam Classic (from The First Encounter) along with Biker Blaze, Devolver Dude, Kleer Kurt, Dark Delilah and many more. The update also provides fixes for issues with player models, levels and visibility in the base game.

Check out the full patch notes below for more details. Serious Sam: Siberian Mayhem is currently exclusive to PC via Steam. For those seeking more Serious Sam mayhem, there’s Serious Sam: Tormental, a top-down rogue-lite that launched out of early access last month.

Serious Sam: Siberian Mayhem Update 1.03

Full changelog

What’s New:

  • Steam Workshop and Serious Editor are now available. Show us those filthy modder hands!
  • Survival mode has arrived! Check a look at 6 brand new levels with awesome visuals and new absolutely badass music. Survive solo or with friends in Co-Op! Those include Horus Sanctuary, Dragon Gates, Castle of Pain, Kleer Fortress, The Snowrider, and Monkey Canyon.
  • New player models! Old fan-favorites, and brand new ones alike: Serious Sammy, Dark Delilah, Biker Blaze, Kleer Kurt, Devolver Dude, Octanian Oleg, Beast of the Apocalypse, and Serious Sam Classic (The First Encounter).
  • All player models have been livened up through the use of a revolutionary technology of eye movement.

Gameplay fixes:

  • Reduced Hoverboard HP from 500 to 300. Still, General Brand now gets angry when you use the Hoverboard on him. Feet on the ground!
  • Changed default “Extra Enemy Strength per Player” in Cooperative mode to 0. Because Double Barrel into a Kleer’s face is sacred.
  • Minefield now kills the rider along with their ride. Checkmate, speedrunners (j/k we love you but it had to go for other reasons).
  • You can now mash “Use” when trying to mount a nimble monster, free from the fear of accidentally unmounting it right away, because there is now a delay before you can unmount.
  • Some enemies were awarding too few points, so we adjusted that.
  • Minor Biomechanoid now performs a parting shot during its death. Just like in old times.
  • Increased health awarded for melee kill of the Pyro and Draconian Burner enemy.
  • T.A.C.T. gadget now stops functioning when a cutscene starts.

Visual fixes:

  • Added weapon wheel preview icons for both alternate weapon skins.
  • Cutscenes have been tweaked and/or optimized, including a fancy fade-to-black before the start of each cutscene.
  • Fixed an issue where some decals (posters on walls, markups on the floor) would disappear when the player was close to them.
  • Fixed an issue with lots of models showing up dark, when playing with Prebaked Lighting enabled on Roadside Picnic level.
  • Fixed an issue with waypoint distance displaying incorrect value when the player is driving a vehicle which is too big for any possible path to the objective.
  • Fixed several visibility/sectoring issues across all levels.
  • Fixed an issue where General Brand would sometimes evaporate at the end of the boss fight.
  • Fixed an issue where the wrong model of the XPMR “Burner” raygun was displayed in Netricsa.
  • Fixed an issue where the dual-wielded “Burners” would sometimes light up the stripe on the wrong weapon when used with the controller.
  • “Burner” and Crossbow visuals now take the auto-aim into account.
  • Various visual fixes across player models.
  • Various visual fixes across all levels.

Other fixes:

  • Fixed an issue where invoking Netricsa in Co-Op would sometimes cause all spectators of the player who invoked it to have a permanent black screen.
  • Fixed an issue which caused softlock on “A Smell of Petroleum Prevails” after the AK fight (gate not opening) if the player loaded a save from an older version of the game. You can now use any save of that level.
  • Various other softlock fixes across all levels.
  • “Roadside Picnic”: fixed overly bright water reflections in the bunker.


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