Mods / Single player

• RRussian Voiceover - Part 1by AsdolgA mod adding Russian Voiceover into the game. A cooperative project of channel METAL TÄLES and creative union Mechanics VoiceOver. Mechanics VoiceOver: VK - YouTube / METAL TÄLES: VK - YouTube / Attention! To get the mod working, you will also need to subscribe to the 2nd part: __________________...17.4k downloadsupdated 6 y ago
• RRussian Voiceover - Part 2by AsdolgA mod adding Russian Voiceover into the game. A cooperative project of channel METAL TÄLES and creative union Mechanics VoiceOver. Mechanics VoiceOver: VK - YouTube / METAL TÄLES: VK - YouTube / Attention! To get the mod working, you will also need to subscribe to the 1st part: __________________...17.0k downloadsupdated 6 y ago
• CCryo Khnum (New Enemy Resource)by [-:-]HarbingerAnother Enemy Resource has entered the field! As part of my idea of new enemy variants with different attack patterns, new visuals and new ways of enhancing the gameplay, this Cyro Khnum shall bring in a different kind of threat than its normal counterpart, with spread-shot cyroballs, a frost bre...15.3k downloadsupdated 6 y ago
• DDunesby noam 200014.9k downloadsupdated 6 y ago
• RReptiloid Highlander Enemy Resourceby [-:-]HarbingerMy first Serious Sam 4 Workshop Upload. :o So since SS4 lacked Highlanders and simple Recolors are not trendy these days, I decided to give it a shot in making a familiar but different sort of enemy for such an iconic foe. The Highlander is clad in protective armor to better shield itself from we...14.8k downloadsupdated 6 y ago
• RREBORNby FakostSaving humankind from an alien invasion is a common thing for our hero. Wounded countless times but never defeated, he surely knows how to deal with bastards from outer space. But this time, someone different will stand in his way, someone as powerful as the most serious man on Earth himself... W...12.3k downloadsupdated 12 mo ago
• NNSKuber's Resource Managerby NSKuberYou may notice that your list of weapons is empty upon first use of the mod. This is because you have to use the Update database button on the bottom row first to obtain the list of supported entries! You may also notice that Stats Modifications are "Disabled" by default. To enable them, press th...10.4k downloadsupdated 5 y ago
• TThebes - Karnak (Demo)by Cyborg.SeriousSiteEgypt? Egypt again?! Welcome to the "Thebes - Karnak (Demo)" map! It's not just a port, it's a map adaptation with own characteristics and differences! Features - Mixed HD and SS4 gameplay. - Extended Netricsa System. You can see visual information during reading or, for example, have ability to...8.7k downloadsupdated 11 mo ago
• UUnlandedby 76561198842066122Story and features As he returned from another failed mission, Sam Stone's helicopter is shot down and he is thrown from his seat. Wounded, but not defeated, Sam desires nothing more than to take his revenge against those that shot him down. Against all odds, Sam knows he should get to the neares...4.9k downloadsupdated 5 y ago
• HHowling Mountainby ThanadraxHowling Mountain awaits Welcome to Howling Mountain - an SP/COOP adventure set in Westen Europe around infamous, nameless mountain, which turned out to be a source of evil. This mission is the prequel to the original story of Serious Sam 4. In this episode you will dash through the forests, plain...4.5k downloadsupdated 6 y ago
• MMonsters Weaponsby Neo_miniganNow all main monsters weapons are yours. You can take it and use. 12 new weapons and some of them with secondary fire. All weapons now dropping from monsters. Like Rocket man after death drops his gun. Beta Version - Should be better if i will find some time to polish it.4.3k downloadsupdated 5 y ago
• MMystical Placeby 76561199040911078READ THIS! This is my first map in SS4, so please, don't be rude. I hope you enjoy it :D Information -This map will take 20 - 40 minutes. -4 Skill points! -6 Secrets around the map! -2 Side Quests! Prehistory Sam somehow appeared in this forest. I don't know how this happened but it was. Your mai...3.7k downloadsupdated 6 y ago
• MMental's cityby Mental ModeSam, I found out that Mental conducts various experiments in his city, creating new types of soldiers. One of the new types is the prototype. It has a very great strength, he can destroy half of our army in the shortest time! We urgently need to find a prototype and destroy it before Mental clone...3.6k downloadsupdated 5 y ago
• AA Seriously Stupid Planet Badass Remasterby Seriously StupidSECOND PART REQUIRED: It IS HIGHLY RECOMMENDED TO DISABLE THESE MODS BEFORE PLAYING: PLEASE NOTE:This mod uses a few replacement files as well as files from SSHD TFE, HD TSE, SS3 and Fusion. Check and disable your workshop packages if you encounter unusual issues while loading the levels or durin...3.5k downloadsupdated 4 y ago
• CCrate Canyonby SkorlyThe sort of sequel to Container Castle that no one asked for is finally here! Fight your way through the Crate Canyon in order to get to the Crate Arena. Here you must fight a powerful foe. The map should take roughly 30-40 minutes to complete if you visit every area.3.3k downloadsupdated 6 y ago
• MMystical Place 2by 76561199040911078READ THIS! This is prequel of first part of Mystical Place. Hope you enjoy! Information -This map will take x2 time than first part. -6 Skill points! -10 Secrets around the map! -2 Side Quests! (NEW!) Music Peace Music - BaltaZzar - In the Dark Forest Fight music - (sorry, i forgot it) War Music...3.1k downloadsupdated 5 y ago
• TThe Shrineby ThanadraxIt is not called like that for no reason Welcome to The Shrine - another SP/COOP episode from Sam's adventures, set on lonely islands among the ocean. Something evil is happening around, and you should get rid of it. In this mission, Sam is trying to have a vacation but ends up beating Mental's h...3.0k downloadsupdated 6 y ago
• TThe Sirian Star - WIPby StruppiDescription Welcome to The Sirian Star, a custom made campaign for Serious Sam 4. It tries to bring back the classic Serious Sam gameplay where you explore nice looking locations, become more and more powerful by collecting big guns and mow down lots of enemies within interesting designed encount...2.9k downloadsupdated 2 mo ago
• PPyramid of Prophecyby 76561199192948673Brutal Serious Sam? Or maybe Super-Brutal-Serious-Sam-from-the-future with a fancy beard? This mysterious hero has already appeared in the original story campaign, helping us in the most desperate moments. But how many of his exploits have remained hidden from humanity? Sam knows the truth, but a...2.8k downloadsupdated 1 mo ago
• CContainer Castleby SkorlyContainer Castle is single player map that is set in a strange, volcanic and unfriendly place where all the buildings are made of containers. Stuck inside the Container Castle itself, Sam "Serious" Stone must find out of this sticky situation, although Mental's minions and the recent volcanic eru...2.8k downloadsupdated 5 y ago
• FFROST COASTby FakostAfter another timelock malfunction you ended up in some frozen lands full of Mental's troops that are begging to be eliminated. What a nice place for a New Year vacation2.5k downloadsupdated 3 y ago
• EExitable Mechsby KolibriOS forth cpu greenarrayMakes you able to leave mechs and do mech fights on foot if you dare!2.4k downloadsupdated 6 y ago
• AA Seriously Stupid Planet Badass Remaster (Part 2)by Seriously StupidSecond part of files necessary for ASSPBR. Download the first part here:2.4k downloadsupdated 4 y ago
• FFinal Solstice Campaign - Level 1: Crescent Starby NeiserUpdate Level 2 is out now! This map also received a small performance update (I doubt it's anything noticeable). Story Before the arrival of Mental's forces to Earth through the Tunguska portal, the EDF sent Serious Sam to find and stop the general in charge of the invasion. Now, it is up to Sam...2.4k downloadsupdated 4 y ago
• SSerious Sam 4 Italia Reworked (WIP)by MattStarChiefSerious Sam 4 Italia Reworked reworks the Italy chapter of the base game by speeding up the pacing, increasing the challenge of levels, and diversifying encounters. The idea of a fully reworked campaign has sadly been scrapped. Life is too busy and I can no longer dedicate the time necessary to c...2.3k downloadsupdated 4 y ago
• ((UPDATE 1) Mystical Place 3 - The Finalby 76561199040911078Update log: -Changed a picture of 3 level. -Added some decorations in 3rd level to make it more beautiful. -Fixed balance in 3rd level. -Some secrets in 3rd has been changed and changed location. -Bike in 3rd level now standing on visible place. Roads in 3rd level are wider (here you go, fiendzy)...2.3k downloadsupdated 5 y ago
• BBlackwater Cityby FinzyA custom campaign for Serious Sam 4 inspired by Ratchet & Clank! Story: In Solana Galaxy, Planet Rilgar has come under attack from Mental's forces. Captain Sam Stone receives a distress call and moves in to investigate. It seems the system's own defense forces are too busy at the moment, or so a...2.2k downloadsupdated 5 y ago
• TThe Sirian Star - WIP - Content Pack 1by StruppiDescription This is a content package for the custom campaign The Sirian Star. It is required to play the mentioned mod. Because of the great filze size, I had to split the content into multiple workshop packages. For more information, check out the custom campaign's main workshop page.2.2k downloadsupdated 5 mo ago
• TThe Quick Encounter - Custom Campaignby SkorlyThere's something seriously suspicious going on in the ruins. Someone has to take a good look at what's going on there. And that someone just so happens to be you, Serious Sam. Travel to the ruins, and take care of this nonsense as soon as possible. Fight through 6 relatively short, but action pa...2.1k downloadsupdated 4 y ago
• SSeriously Stupid Modified Enemies (Resource Pack)by Seriously StupidReplacement pack version can be found here: An enemy pack for Serious Sam 4 based on experimental changes for A Breakfast in France Remastered. Files can be found in Content/SeriousSacor Special thanks to: - Danny S - scripting, effects, LOD modifications - Biomech - sounds - NSKuber - scripting...2.1k downloadsupdated 5 y ago
• AAdventures Of Pesko - WIPby MarkoJPlease be aware of the following changes: 1. No Further Updates:There will be no additional updates of patches released for "Adventures of Pesko". The current version available on the Steam Workshop will be the final iteration. 2. Technical Support: Unfortunately, I won't be able to provide ongoi...2.0k downloadsupdated 5 y ago
• BBunkerby Mental ModeAfter you destroyed the lava golem in the city of Mentala, you teleported to the ground. But where did you end up? What is this strange place? My sensors have detected a huge structure underground. I think you should find it and investigate. Maybe there is something useful. But all your big weapo...1.8k downloadsupdated 5 y ago
• FFrenchieby RoosevWARNING!: Survival Scoring is not "required" for the map to work, however it will fix HUD issues. Frenchie is a French Countryside-themed Survival Map that is playable on both Solo and CO-OP. Features: 13 Waves + The Endless Mode. Multiple secrets that can aid you in your fight for Survival. Cust...1.8k downloadsupdated 4 y ago
• KKenny's Marsh Hopper Moment Fixby VraboIn the Breakfast In France level after you've completed the "dronning on" sidequest, Kenny calls you and seemingly has a schizophrenic moment where he goes "..Ah!! No I love frogs! I'm sorry. I'm sorry. I'm so sorry!" The reason he has a schizophrenic episode is because Croteam never fixed these...1.8k downloadsupdated 6 y ago
• SStonefield Massacre Survivalby ThanadraxCozy, pure slaughter night survival map with open field made in 4 hours, 2048x2048 playable area. I always wanted to see a night level in Serious Sam 4. Features three vehicles scattered across the road, a freaking mech, new enemy type - cannon biomech, and lots of respawning gadgets. Check fores...1.7k downloadsupdated 6 y ago
• AAssault On The Fortress (Remastered)by NeiserStory Mental has been developing new dangerous technologies in a remote place called "The Fortress." Attack one of Mental's most heavily fortified emplacements and put an end to their scheme by any means necessary. Main Changes - Now playable in Co-Op - Improved the visuals (especially the lighti...1.7k downloadsupdated 4 y ago
• AAdepti's Abode: Recarvedby NekorieThis is an updated and improved version of the original Adepti's Abode. Adepti's Abode: Recarved has several notable changes: - improved visuals - new custom environment models - updated balance (enemy and item balance) - new boss - semi-new weapon - updated puzzles and secrets - most chests are...1.7k downloadsupdated 4 y ago
• HHEAVEN'S GATESby FakostYou left alone in the middle of a french field full of flowers and Mental’s troops. What a nice place to die - pure 16km open field. Go wherever you want. No barriers. No limits. Just you and tons of enemies - explore the area to find weapons and gadgets - 5 secrets - 3 different vehicles includi...1.7k downloadsupdated 5 y ago
• EEnhanced Werebull Ridingby AsdolgBrings back one of the cut features into the game. Now you can have more fun riding angry steaks! Changes are as simple as they could be: - Enabled first-person mode when riding werebull. - Allowed dual-wielding when riding werebull. Third-person animations are broken if using dual-wielding. You'...1.6k downloadsupdated 6 y ago
• FFinal Solstice Campaign - Level 2: The Grand Forestby NeiserUpdate I'll be putting this campaign on hold indefinitely. I'm not sure if I'll ever finish it. I can't afford the time right now to make more maps :( I hope you enjoy the maps I've made :) Story After your ship was shot down by a mysterious watchtower, you got to work on mowing down Mental’s min...1.6k downloadsupdated 2 y ago
• OOuterLandsby 76561198842066122Long Story Short After being unexpectedly transported through a dimensional portal, Sam awakens and overlooking. In the distance, he catches a glimpse of a distant city, offering hope and a potential safe haven. Determined to reach his destination, Sam must traverse, battling hordes of relentless...1.6k downloadsupdated 3 y ago
• DDesertedby Roosev(I have recently added resources to this map. MAKE SURE YOU HAVE SUBSCRIBED TO THESE RESOURCES! Otherwise, big bang, or crash I guess...) A classic map makes a return! Consider this a "remaster" of an old classic... inside of SS4. Features: A fully functional Sirian Bracelet is back! Random music...1.6k downloadsupdated 4 y ago
• FFEUDAL CHINA 2025by FakostWelcome to the Feudal China - the second episode of Serious Sam Next Encounter. Now in hi-res, with fancy 2k textures, bigger guns and new combat encounters. But only 3 levels - 3 fully remastered Feudal China levels: Monkeys of Juyongguan HD™, Jiayuguan Fortress Reawakened™ & Dunhuang Oasis Rebo...1.5k downloadsupdated 17 mo ago
• MMental's Factoryby serious bomb背景介绍(Level) 在Mental入侵地球不久后，Mental的军队在地球上建设了很多工厂，其中包括但不限于武器工厂，生物改造工厂，资源工厂。。。某天萨姆乘坐前往任务地点的飞机遭到了大范围的能量波攻击，导致飞机坠毁，萨姆很幸运的掉进了某个Mental工厂前哨站附近的水池中，战斗就此打响。 Not long after Mental invaded Earth, Mental's army built many factories on Earth, including but not limited to weapon factories, biological modificati...1.5k downloadsupdated 2 y ago
• MMiddle Agesby ArtEM-41Having lost to Metal in space, Serious Sam returns to Earth. Free the castle from alien invaders and solve its mystery! System requirements Random access memory: 16 GB RAM P.S. This memory requirement is caused not by any of my wishes, but by the jokes of the engine. I do not know how to fix this...1.4k downloadsupdated 11 mo ago
• EEvacuationby Mental ModeSam, you've been on important business at the top of the mountain. But all your plans were thwarted as Mental's troops invaded this territory. There are a lot of attackers, you will have to evacuate by helicopter. Unfortunately, the helicopter cannot fly up to you, it will meet you at the foot of...1.4k downloadsupdated 6 y ago
• SSSHDWeapon&Item_CompletePack(Resource)by serious bombSSHDWeapon&Item_CompletePack(Resource) -This package contains SSHD weapons and items, including HD style weapons, HD style health, HD style armor, and HD style bullets. -The weapon has been adapted for Sam 4, and players can call HD weapons and corresponding upgrade accessories through NRM. The a...1.4k downloadsupdated 12 mo ago
• OOfficeby Mental ModeMental's army has captured over the office building. With the help of energy, they summon new soldiers to Earth. The only option is to turn off the generators in the building. Do it, Sam and Good Luck! Testers: Castiel____, Nikita Postironiev. Music: Mental Mode. Office - Peace; Home (Backing Tra...1.3k downloadsupdated 5 y ago

166 single player 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.