Mods / Single player

• TTFE's Technology Test Levelby Owlet VIISorry for this useless upload, but I had to do it to satisfy my OCD. Map by Croteam.741 downloadsupdated 13 y ago
• RRealm Of Illusionsby DeviantelThe first part of the Realm of Illusions trilogy. Story-driven, where your choices determine one of two possible endings, but also full of fights. Lower in quality than later parts, since it dates back to 2006.734 downloadsupdated 11 y ago
• RRealm of Thoth - Classic collective mappackby 76561198841929330Realm of Thoth is a huge campaign made by talented SED1 mappers. The project was being worked on for 9 months and the idea was to make a full campaign working as a team. 5+ hours of content 9 beautiful diverse maps to explore 48 secrets to find 4000+ enemies to slaughter List of participants and...724 downloadsupdated 1 mo ago
• LLucienby DeviantelA story-driven, single player map throughout which the very 'reality' in which your are playing is brought to question. It's the second part of the Realm of Illusions trilogy. WARNING: Some parts of the mappack may cause epileptic seizures due to flashing colors and lights.635 downloadsupdated 11 y ago
• SStellaby DeviantelA single player, story-driven, emotional journey, where your choices determine one of two possible endings. It is the third part of the Realm of Illusions trilogy. There are some fights, and moments where you have to move quickly, so make sure you save your progress from time to time. WARNING: So...617 downloadsupdated 11 y ago
• OObject class SPby AzuneA long singleplayer map, with the possibility of a cooperative and not a bad optimization.604 downloadsupdated 10 y ago
• RRed Station (Hardcore coop) - BETAby Grandgok_7554Продолжение этой карты - ВОЗМОЖЕН БАГ НА ТУРИСТЕ КОГДА ДВЕРЬ НЕ ОТКРЫВАЕТСЯ Космический корабль рухнул на планету. Похоже мы высадились как раз вовремя. Войска Ментала штурмуют Красную Станцию, люди на ней обречены. Нам предстоит с боем прорываться внутрь и ДАЖЕ НЕ ПЫТАЙТЕСЬ СДЕЛАТЬ ЭТО В ОДИНОЧК...599 downloadsupdated 10 y ago
• CCorrupted By Chaos - Machine Of Doomsdayby 76561198399253147Description One of my most successful maps for Serious Sam, created in just 28 days and published for the first time in August 2017. Player's path will pass through an ancient abandoned alien outpost filled with deadly mechanisms and traps. In addition, during the passage, player will regularly f...547 downloadsupdated 5 y ago
• CCold Rocksby Tush o' MobiusOnce I got Serious Sam Revolution and saw that it uses Steam Workshop, I decided to upload to it one of my old levels (this one was made along with friend though) into it. It's a single-player map. It's quite newbie one and is even UNoptimized (I was dumb and connected everything into single sect...544 downloadsupdated 12 y ago
• FFix Russian voice actingby Chef-PovarFix Russian voice acting from Dzhigurda at the beginning of the chapter Land of the Damned, where the phrase is pronounced in English #fix #russian465 downloadsupdated 3 y ago
• MMeat Yardby BmpCorpThis map exploits one simple idea: what will happen if you drop a f-load of enemies on the arena at once. The map isn't new, but it was made when computers already allowed experiments like this. However, the FPS still can and propably will drop down at some moments, especially when crowd of kamik...441 downloadsupdated 12 y ago
• RRepentanceby CR!STALLLEnglish description: You are an FBI agent. You are going to carry out an investigation in the mansion of one family. You also need to find out what happened to the other FBI agents who were sent to the mansion before you. This is a horror map. It is not recommended to play for faint-hearted peopl...385 downloadsupdated 5 y ago
• CCursed Realms - Tomb Of Hunting Darknessby 76561198399253147Description This is the huge and long map created for the "Manhunt 2017" contest and released first in March of 2018. Player will have to enter a chain of caves and shrines built inside them, which were opened to explore after the earthquake. Mental's army already here, and has its own special in...366 downloadsupdated 3 y ago
• TTimeshift - Chaak's Portal Mazeby 76561198399253147Description This is an ancient underground Maya complex, saturated with atmosphere of the Second Encounter first levels. Duration is about 30 minutes. Gameplay is designed for an experienced player ready for surprises. The map was completed in just 18 days as part of Mapper Challenge at Serious S...351 downloadsupdated 5 y ago
• CClown Temple Part1by nifran_taySam has discovered an ancient temple. Mental is already there and mayhem ensues. Can Sam discover the nature of the temple or anything about those who built it. This is a release for testing. It has been fully tested in single player on normal.335 downloadsupdated 10 y ago
• LLeaked 0.10 build beta mapsby GeorggLevels from the recently leaked 0.10 build ported to Revolution - Tomb of Ramzes - Yellow Terrain - Dream Waterfall - Oasis - Dunes - Karnak Temple Complex Singleplayer only as things break in CO-OP - The levels WILL NOT appear in the Split screen or network menus Fixed all (that I and "testers"...324 downloadsupdated 19 mo ago
• DDEMO: The Time Crusader Episode 1 - Lost in Timeby KafkaUPDATE: A remade full version is now available here: Serious Sam: The Time Crusader Demo - Episode 1: Lost in Time This is my first map ever, and a first in the Time Crusader campaign I'm making. I suggest playing on normal difficulty since I didn't adapt it for other difficulties. Single player...321 downloadsupdated 19 mo ago
• PPhoenix Worldby Ar2R-devil-PiNKyOne of the most spontaneous maps, which emerged from a simple experiment with lighting, in a couple of hours grew into something more. The map is very short, it can be completed in a couple of minutes.310 downloadsupdated 3 y ago
• SSamuel Free World - Part 2by samsamsamOverview Title : Samuel Free World - Part 2 (v1.0) Author : samsamsam(SAM Chen) Date of Release : April 3rd 2022 Editor(s) used : Serious Editor (SSTSE SEd x64 2015/4/6) (original Revolution support but enemy mutator not) Cooperative : Yes Play time : over 3 hr Time made to make: idk lmao This is...299 downloadsupdated 5 y ago
• II am Alone (or a generic ketchup-horror story)by Ar2R-devil-PiNKyA short horror map with loud sounds. This map was originally intended for a contest in 2011, but was abandoned. Before the end of 2013 it was decided to finish this map (kinda). Now it's 2023, I was bored and decided to make a English translation, change some stuff, add additional sounds and put...297 downloadsupdated 3 y ago
• MMapping Jam 7 - 200x200x200by LakiMapping Jam 7 was a mapping event for Classic TSE v1.07 that was happening between 1st September and 15th November 2024. This event's theme was creating a map around 30 minutes long in limited boundary of 200x200x200 units. List of participants and their maps (not a ranking): Laki - The Bell Towe...296 downloadsupdated 22 mo ago
• CCaverns Under Necropolisby 76561198399253147Attention! Due to some supernatural circumstances, the Revolution version does not spawn enemies. I am attaching versions for classic TFE until a solution to the problem is found: - Russian Version - English Version Description: This is a two-map mappack in ancient Egypt style, first released in...295 downloadsupdated 3 y ago
• BBadmapby Samg1nthis is something worse than just bad took me so much time to upload my first (7 months old) map better ones coming NEVER gl with monsters it has no end just enjoy upd 02.03.18: ♥♥♥♥ man how could it get up to 16th in the most popular page (in past 3 months)?!?!?!?!?!? is community that dead that...293 downloadsupdated 3 y ago
• FFour Wallsby Ar2R-devil-PiNKyA map in the puzzle and escape room genre. It was originally created for the Brainiacs 2018 competition. Not much to say, try to get out, the exit door is nearby.263 downloadsupdated 3 y ago
• HHong Pong 97by Dreamy CecilA strange mod, rumored to have been found on a flash drive recovered from Saddam Hussein's dumpster. Recommended to play with sound effects at 0% and with music at 100% for the full immersion.257 downloadsupdated 19 mo ago
• MMinecraft (Pre-Classic 1.1)by 76561198406869087That's just a 16x16x16 cobblestone planet and nothing more. You have some weapons which you can use to break blocks. The default objective is to destroy the entire planet. Notes: - The blocks are made of ModelHolders, so the collisions are a bit weird. - Don't dig straight down, you may get stuck...256 downloadsupdated 7 y ago
• DDream Atlas - Hexicaby 76561198399253147Description A short map for "Brainiacs 2018" mapping contest. The map is devoid of any fights, plot or obvious goal and, being only for solving puzzles and exploring a surreal place built in the abyss. First impressions can be completely disorienting because there are no direct hints. Player will...240 downloadsupdated 5 y ago
• IIce Valley (re-upload)by 76561198827052407My First Upload I really use this editor whenever I have nothing to do. Therefore, I'm not really a proffesional with this stuff. Although I do find it to be fun. With that being said, I do apologize for any technical difficulties within the level, if any. Enjoy! THERE ARE NO AUTOSAVES IN THIS LEVEL234 downloadsupdated 3 y ago
• TThe Time Crusader - Episode 1: Lost in Time (v.1.0)by KafkaPLEASE READ BEFORE PLAYING - THREE IMPORTANT THINGS: 1. Start the campaign by choosing "Episode 1: Green Valley Part 1" in the custom levels. That will start with the opening cutscene that leads into the first level. 2. Single player campaign for Normal difficulty. 3. Subtitles for real-time dial...233 downloadsupdated 5 mo ago
• [[64bit] Mayhemby Laki================================================================ Story : No story. Shoot the badies. Description : A small map using Thanadrax's 64-bit texture pack. Level design and texture mapping was done to resemble old low poly levels from games like Quake. It has fast pacing and a bunch of...220 downloadsupdated 3 y ago
• TThe Serious GAME.EXE Contest Maps Pack (Lost Media Restoration) - Russian Versionby 76561199104848778This is the return of a lost classic: This isn't just a collection of user-created maps—it's a restored piece of the Serious Sam community's history. This mod brings maps from the legendary GAME.EXE magazine contest, which took place during the heyday of the original Serious Sam (2001-2002), to S...201 downloadsupdated 3 mo ago
• TThe Big Houseby 76561199069800967You are supposed to be an ant and you are exploring a big house where you will go to new places while finding secrets, some bosses and enemies. Fun fact, maybe I'm wrong, but I think this is almost the first or second Serious Sam map of this style. I'm surprised I haven't seen other types of maps...195 downloadsupdated 15 mo ago
• MMapping Jam 8 - Key Huntersby LakiMapping Jam 8 was a mapping event for Classic TSE v1.07 that was happening between 31st January and 30th April 2025. This event's theme was creating a map where you would have to find 3 keys to proceed to the end of the map. List of participants and their maps (not a ranking): Wolf - SeriousGameS...180 downloadsupdated 16 mo ago
• RRun For Life (Mental Power Demo)by Dreamy CecilVersion for Classic TSE: Introduction Good evening, beheadies and gentlekleers, and welcome to Run For Life tournament! It's the second day of our show and... is it hot in here or it's just me? That's right, this time we're on Planet Kleer! And I've heard rumours that Earthlings are particularly...174 downloadsupdated 23 mo ago
• TThe Serious GAME.EXE Contest Maps Pack (Lost Media Restoration) - English Versionby 76561199104848778As promised, at the request of subscribers, this Collection has been translated into English, from the text to the voices. (If you're looking for the Russian version, it's also in my workshop.) This is the return of a lost classic: This isn't just a collection of user-generated maps – it's a rest...170 downloadsupdated 3 mo ago
• HHalf-Life Medkitby Chef-PovarReplacing a first aid kit that gives 50 health points (Large Health) with a first aid kit from Half Life. Credits: Valve Collection:166 downloadsupdated 3 y ago
• TThanas insanity: DEFORGED!!!(Beta edition)by Werewolf man (OH YEAH BABY)This mod is made for the 10th anniversary of the Serious sam HD: the second encounter mod Thanas Insanity by Thanadrax. Thanas Insanity is a custom campaign that doesnt replace the egypt levels but gives us an altered version anyways, which gives us plenty of custom enemies and music, which is gr...165 downloadsupdated 16 mo ago
• TThe Big Kitchenby 76561199069800967You find yourself in a gigantic kitchen, but you are actually the size of an ant, so you will be able to explore a kitchen where you will have fun exploring it and finding secrets and monsters. Credits: Golden Laser by ZynChroMaTiK. Aludran Reptiloids from Serious Sam Beta by Bitkim Internal Test...149 downloadsupdated 15 mo ago
• RRat map packby 76561199069800967This is my first Serious Sam Classics Revolution map pack, which means you will play as if you are the size of a rat, ant, toy, I prefer to call it the size of a rat xd, so you will feel like everything is giant. . , it's not bad to have a little distraction, my idea is also to be able to explore...148 downloadsupdated 2 mo ago
• ((SV)RunJumpandShootby fil.smi93Let me introduce you to my first survival map. In it, I slightly altered the standard gameplay of Sam. Added speed and verticality to the gameplay. That's why I named it after what you have to do on it - run, jump and shoot. Defeat all ten waves of enemies on this map. Позвольте представить вам м...135 downloadsupdated 5 y ago
• TThe Big Bathroomby 76561199069800967You are the size of an ant and you are in a bathroom, you can walk through the toilet, or places like the bathtub, the floor and the cabinet where you wash your hands, etc., it is practically like a joke, because you will meet ugly monsters in random place Some small bugs i need to fix and maybe...131 downloadsupdated 15 mo ago
• SSewers Underwaterby 76561199069800967A level where Sam will fall in the middle of underwater sewers, it will be difficult to resist breathing so try to quickly look for places to catch your breath. Credits: Level created by me in Serious Editor by Croteam. New textures created by me from Paint by Microsoft.117 downloadsupdated 3 y ago
• TThe Big Poolby 76561199069800967You are the size of a rat and you are in a beautiful pool reflected by sunlight. And good morning by the way. ?? Credits: Golden Laser by ZynChroMaTiK. Aludran Reptiloids from Serious Sam Beta by Bitkim Internal Test Arachnoid by JesterOfDestiny. Next Encounter Werebull by JesterOfDestiny. Next E...112 downloadsupdated 15 mo ago
• DDark Island's "First" level but Differentby 76561199104121052I took Dark Island's first level, added 300 enemies, and changed the weapon progression. I might modify the rest of DI like this in the future. It took me 10 attempts to upload this map to steam because of bullshit editor errors, but I think I finally coaxed it to work. Music is Kill Switch by Ju...102 downloadsupdated 20 mo ago
• SSecret hunterby 76561199862295830Mod will add one level filled with secrets to game so far. Will you try to find them all? It will be more difficult to find them in next levels. P.S: To take a closer look at images with all secrets, you need to download it from your browser.96 downloadsupdated 4 mo ago
• 22 buildings in orbitby 765611990698009672 buildings floating from orbit, you start in a building with five floors full of spawned monsters, the second building belongs to the monsters, which is quite mysterious, your mission is to defeat the walker boss. The funny thing is that this level exists in one of my jumping kangaroo levels. Th...93 downloadsupdated 3 y ago
• TThe Big Classroomby 76561199069800967You are the size of a rat or almost a soldier ant so to speak, and you are in what is supposed to be any classroom, but you will be there during 00:00 AM and there will be no light, it seems a little creepy but no xd. I've been seeing that the size doesn't seem to have much to do with the lag, I'...88 downloadsupdated 15 mo ago
• TThe Framewarp: Taipo Editionby 76561199104848778The Framewarp is one of the most legendary user-created maps for Serious Sam, released on June 21, 2001. It was created by Mariano Cavallero, better known by his pseudonym Forager. He later gained widespread recognition as the creator of Forager and also worked as a level designer on Serious Sam...83 downloadsupdated 3 mo ago

98 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.