ModsSerious Sam: Siberian Mayhem
Serious Sam: Siberian Mayhem mods
A mod changes the game itself. It needs something to load it, it may need other mods first, and it only works on the versions its author built it for.
276 mods, most downloaded first · newest update 17 Oct 2026
Modifications103Weapons81Single player65Additions60Cooperative55Models49Graphics42Player Models37Resource Pack37Enemies34Sounds34Maps29Custom Campaign25survival24Versus12Music9Multi-pack9ctf7Language6
- The Ripper from Duke Nukem (NRM Weapon Resource)by UrbanDeHumanInspired by the Russian prototype of the 3-barrel assault rifle, "The Ripper" Chaingun Cannon is a powerful machine gun created by the EDF by the request of the Nuclear Duke himself. This beast of a weapon greatly utilizes its own 3-barrel system and shoots 1200 rounds per minute to overwhelm the...818 downloadsupdated 3 y ago
- Tasty Ammo Pick Up Sounds!!!by Mr.OgurchickT_TDidn't it bother you that when choosing ammunition you hear the same sound every time? This mod will fix it! Now, like SS2 ammunition, each type of ammunition has its own unique sound.812 downloadsupdated 4 y ago
- Unlockables Unlocker for Moddableby Ryason55This mod properly unlocks all of the unlockable skins in Siberian Mayhem by setting the appropriate unlock flags on your ingame profile. It will take effect after starting any level.800 downloadsupdated 4 y ago
- AK Opticby Spy's Cr3edOkay so basically... this mod adds optic to the AK also some Material overhaul. Remember when people used to remove the Optic from AR in 4? Did you suddenly changed your mind, hm, do you want it back?785 downloadsupdated 5 y ago
- Unlock Everythingby Samg1nUnlocks all weapon skins and all playermodels in the menus. Props to Supersniper98 for the thumbnail xD784 downloadsupdated 4 y ago
- Genshin Impact - Ganyuby NekorieGanyu from Genshin Impact. Ported from Serious Sam 4. A notable feature is eye movement and blinking (you can see it on the last pic). I don't think it was actually working in SS4. Original model by miHoYo, taken from here Sounds by miHoYo, taken from Honey Impact You can also get the SS4 version779 downloadsupdated 4 y ago
- Bow (Weapon Resource)by 76561198898868461Bow from The Last Hope is now available as a weapon resourse. Includse both regular and explosive arrows. It can be spawned from NSKuber's Resource Manager. For mappers: Content/SeriousSam4/Databases/Weapons/TLH/Bow/BowWeapon.ep Content/SeriousSam4/Databases/Weapons/TLH/Bow/BowWeapon_Explosive.ep...769 downloadsupdated 18 mo ago
- Sulphuric_Weaponsby Sulphuric_GlueA collection of all the weapons I have made or will make. These are resources for modders to put in levels, they do not add anything to the base campaign. Weapons parameters are under SeriousSamSM/Databases/Weapons except the Fusion Blaster, which is under SeriousSam4/Databases/Weapons. Sorry for...729 downloadsupdated 2 y ago
- Serious SamCraft - Enact the Endingby Sulphuric_GlueThings are getting out of hand, Sam - Mental is invading other games now! Notes This map should be played with prebaked lighting off, or else most of the level will be too dark. I have made efforts to reduce frame drops under dynamic lights as much as I can by using alternate models that use less...727 downloadsupdated 9 mo ago
- SamCraft Repositoryby Sulphuric_GlueA repository for the base textures, models, sounds etc for SamCraft. This does not do anything by itself. This is a pack of resources used by SamCraft maps.714 downloadsupdated 10 mo ago
- BFE Sunglasses for Samby UrbanDeHumanA mod coming back from Serious Sam 4 to Serious Sam: Siberian Mayhem! It replaces Sam's sunglasses with orange sporting sunglasses that he had in Serious Sam 3: BFE.707 downloadsupdated 5 y ago
- Original Crosshairsby Samg1nPort of Original Crosshairs mod for SS4. Adds all crosshairs from other games.690 downloadsupdated 5 y ago
- Classic Weapons Order for Num 3-4by timilyo80It's back! It's fresh! It's brand new! It's that one mod that saved the muscle memory of over 600 players, now available for SM!!! (change the order of the weapons on slot 3 and 4, so the double shotgun and the minigun are first and the single shotgun and the AK are seconds (like in the good old...670 downloadsupdated 5 y ago
- PKM (Weapon Resource)by 765611988988684617.62 mm Kalashnikov machine gun (ПК) - a Soviet machine gun developed as the single machine gun for the Armed Forces of the USSR. The PK was adopted by the Armed Forces of the USSR in 1961. Used in many wars and armed conflicts 2nd sex. XX - c. XXI. According to the assessment of the American gun...669 downloadsupdated 18 mo ago
- UrbanDeHuman's WEAPON DROP 01 (NRM Weapon Resource)by UrbanDeHuman----- WEAPON DROP 01 ----- This Weapon Drop brings KRISS Vector, M110, M249, MCX Spear, and last, but not least - the MP5K to Serious Sam: Siberian Mayhem! All weapons have different stats, Netricsa messages and that beautiful animation work of mine that you know and love. For modders: Item path:...668 downloadsupdated 16 mo ago
- [SM] Reshaded Weapons Packby Samg1nThis mod replaces majority of Node shaders on all SS4 and SM weapons, gadgets, and player projectiles with the superior Standard shader for the purpose of bringing out the metallicity, details and making the models look actually dark in shadows. Majority of SS4 weapons are ported from Sacor's ASS...659 downloadsupdated 4 y ago
- Mantling (Script)by NekorieThis mod adds mantling/climbing to ledge ability. After jumping/falling press or hold jump key again near a ledge to mantle onto it. Also works when mantling onto moving/rotating objects. Also works in multiplayer but first person animations on clients might look a bit weird sometimes compared to...653 downloadsupdated 3 y ago
- Scripted Viewmodel Ammo Belt/See through magazine Handlerby 76561198956493704This workshop item is only a script and is intended to help mod creators. Description: This workshop item adds a script for the gradual disappearance of bullets while shooting, you may have already seen its work in the PKM weapon. Weapon Resource from Bazar. Tutorial: 1. Preparing the Bullets in...648 downloadsupdated 9 mo ago
- Astolfo Playermodel(SM)by 76561198354942332My name is Astolfo! One of the Twelve Paladins of Charlemagne! Pleased to meet you! Here you go, Astolfo is in Siberian Mayhem, ready to shoot some Aliens! Hope you enjoy the gift!647 downloadsupdated 4 y ago
- Fall of Melancholy Village [Custom Story Campaign]by DizellfestCaught within the darkness an ill man must find a way to solve one mystery on why everyone has disappeared and on why dark creatures started to plague these lands. Explore the Villages, solve the mystery. The notes should help. |||PROJECT INFO||| FoMV is a short side project of mine which tells t...636 downloadsupdated 3 y ago
- AK-74 Audio Upgradeby SkullByteThis addon replaces ALL AK-74 sounds of Serious Sam: Siberian Mayhem. You can view examples from the video above.623 downloadsupdated 4 y ago
- Suspicious Spencerby PikaCommandoThis mods adds Suspicious Spencer, a Draconian Burner who is most certainly not an EDF spy in disguise, as a player model.611 downloadsupdated 5 y ago
- Audiolog Enhancementsby Samg1nLets you pause the audio logs seen in the fourth and second levels. Also adds a fancy inspection animation when you pick one up. In the settings, bind a button to STOP AUDIO LOG PLAYBACK (not bound by default) - pressing it will stop the currently playing audio log sound, if any (key to stop play...607 downloadsupdated 4 y ago
- Secrets of Mystical Man :)by 76561199040911078Secrets of Mystical Man The events take place between the end of SS4 and the beginning of SS3. Sam, after killing the Creator, temporarily freed himself from the cycles of the Mystical Place. During this time, he managed to argue with Quinn that he could find something worthwhile in the first cav...582 downloadsupdated 17 mo ago
- Rigathar - Mental Madnessby Sulphuric_GlueMental is stepping up his game this time, Sam! Inspired by the Death Wish mode from A Hat in Time, this set of three levels takes parts from the Rigathar campaign and massively ramps up their difficulty, for short but highly intense encounters. This should be stressed - the maps are very difficul...536 downloadsupdated 4 y ago
- Foggy lawlessnessby 76561198882468386HI: hello everyone, despite the fact that this is my first map made, you can express criticism clearly and to the point so that in the future I can make maps better. Prehistory: when Sam arrived at the base, he wanted to take a nap. After he fell asleep, he dreamed of fog and a bunch of monsters....527 downloadsupdated 3 y ago
- Prototype Finishers Remakeby 76561198956493704This mod aims to recreate Old and Prototype Finishers animations. Includes animations for Gnaar Female - Eye Torn Gnaar Male - Eye Torn -New Octanian Gamma Trooper - Break Neck and Jump Kick Octanian Commander - Break Neck and Jump Kick Octanian Sniper - Break Neck and Jump Kick Octanian Grenadie...525 downloadsupdated 4 y ago
- Deja Vuby sharsteinEntire tunnel collapsed behind you, hundreds of tons of rocks and concrete fell down with excruciating sound, blocking pass, leaving no choice but move forward. Definetely work of Mental's slaves, but you actually don't mind it. After all, you never was against another encounter with alien hoards...523 downloadsupdated 14 mo ago
- Laser Projectiles Replacementby NeiserDescription Unless you have bloom enabled, the laser projectile models in SS4 look like a white spaghetti noodle mixed with a glowstick. This mod will replace the models for the following: - Laser Rifle projectile model - Minor Biomechanoid laser projectile model - Octanian trooper laser projecti...522 downloadsupdated 4 y ago
- HUD Indicators for Scoped Weapons (SM Port)by steak jacobsA port of Triple AAA's mod from SS4 to SM. Only affects the scopes of the Devastator and Sniper Rifle. Hope you enjoy! Link to original for Serious Sam 4 Workshop:510 downloadsupdated 4 y ago
- Double Jumpby 76561198879145591In short, this mod adds a double jump to the game Disclaimer! This mod is not mine, I just ported it here, the original author of this mod is NSKuber, thank him for this mod Link to the original - Update 2.0 from 03.01.2026 The original script has been modified so that double jumping can now be d...488 downloadsupdated 10 mo ago
- Pistol Reanimationby 76561198898868461"Mister Smith, Mister Wesson! Glad you could make it." As title suggets, it include new animations for Pistol made from scratch. Also includes new sounds. Credits: Bazar - Animations rzen1th - Sounds483 downloadsupdated 14 mo ago
- Empress (Black Rock Shooter: Dawn Fall)by tensor algebraThis mod adds the Empress incarnation of Black★Rock Shooter from the anime Black★★Rock Shooter: Dawn Fall as a playable character. Features fully rigged arms, team variants and both a shaded and shadeless variation. Massive thanks to noam 2000 for doing all the heavy lifting and helping me rig an...472 downloadsupdated 4 y ago
- Reptid's SS4 Touhou packby BuBunPachi : SaiDaiOuJouFeaturing 4 characters from Touhou project as playable characters, these are ports of my already-uploaded SS4 playermodels. For more information about the characters see : I will port more characters to Serious Sam in the future, Im open to suggestions. Special Thanks mystia and Kurumi Credits ZU...471 downloadsupdated 4 y ago
- Extended FOV for weapons + gadgetsby 76561198879145591The simplest mod that just makes a big fov for guns and gadgets470 downloadsupdated 3 y ago
- Rocket Launcher Repositionby BjovicOriginal mod by Vrabo469 downloadsupdated 5 y ago
- Score Points on HUDby Sadako lover <3Mod return score points on your HUD461 downloadsupdated 5 y ago
- Crossbow Audio Upgradeby SkullByteI've always felt the vanilla Crossbow of Siberian Mayhem felt weak due to it's bland and quiet sounds. This addon completely overhauls said sounds. View the video above for example. I hope you enjoy!448 downloadsupdated 4 y ago
- M79 Grenade Launcher (NRM Weapon Resource)by UrbanDeHumanYou have to use NSKuber's Resource Manager in order to spawn and/or replace any weapon with M79 Grenade Launcher. The M79 grenade launcher is a break-action, single-shot weapon that carved its legend in the Vietnam War. Popularized through films depicting the conflict, it became a cultural symbol...444 downloadsupdated 18 mo ago
- Double Shotgun Grenade Launcher Attachmentby PikaCommandoA port of the SS4 Double Shotgun Grenade Launcher Attachment mod.436 downloadsupdated 4 y ago
- Shantae Player Modelby BiomechanoidRet-2-Go! This adds in Shantae as a playable model for Serious Sam: Siberian Mayhem. Ripped and rerigged by Pan. This model has 5 variations: - Shantae - Shantae (Bikini) - Shantae (Camo) - Shantae (Néga) - Shantae (Santa) All include custom arms also rigged by Pan and sounds, as well as red and...429 downloadsupdated 4 y ago
- Grenade launcher Reposition (SS4 port)by VraboPorted from Serious Sam 4. Original description: Tired of your grenade launcher looking like it's hiding in the corner and afraid to show off it's cute upgrade module to you? Tired of the grenade launcher trying to distance itself from it's rocket relative by positioning itself in an odd way? Wel...425 downloadsupdated 4 y ago
- [Player Model] Nyx - Quake Champions' Fathom Agent (+Ghost variant)by UrbanDeHuman"The shadows hide me!" Ages have passed since the peaceable Melem learned to harness the Fathom Orb, imbuing themselves with a trace of its baleful energy to enable “Ghost Walk” - a momentary phase-shift into another dimension. Even when they were sieged by hulking, chitinous marauders, the Ghost...419 downloadsupdated 2 y ago
- Cannon - Planet Badass Positionby VraboThis is a mod that's been ported from Serious Sam 4. Original description: Cannon (Planet Badass position) This mod changes the viewmodel positioning of the cannon so that it resembles the version we've seen in the pre-release footage. It is not meant to be a perfect replica, it's simply my own t...418 downloadsupdated 4 y ago
- Classic Green Bomberby NeiserReplaces the bomber's color texture and nothing else. All credit goes to Soulmyr for the texture. Original by Soulmyr in SS4:413 downloadsupdated 4 y ago
- Shotgun Audio Upgradeby SkullByteThis addon replaces ALL Shotgun sounds of Serious Sam: Siberian Mayhem. You can view examples from the video above. Here's the original mod I should credit: New SS3 Single Shotgun Firing Sound413 downloadsupdated 4 y ago
- Tribe Of The Bells 2026 - Campaignby DizellfestLet the bells ring. DIFFICULTY: Easy Theme: Fantasy, Winter Wonderland Music: Metal, Techno Bot Support: Yes Weapons: Custom, All Unlocked Time To Beat: 25Minutes Enemy Count: Medium Level Count: 1 Universe: Unknown (Not Serious Sam Story) Worktime: 6 Days (FEATURES) - Automatically spawned AI Sa...410 downloadsupdated 11 mo ago
- Fulgore (Player Model)by PanFulgore from Killer Instinct with sounds, team colours and first person hands. Model, textures and sounds belong to Double Helix Games.407 downloadsupdated 5 y ago
276 mods, most downloaded first. Each one has its own page here with what it needs to run and where its author publishes it; the files themselves stay with the author and are never re-hosted on this site.