Games like Serious Sam: Siberian Mayhem on Steam

For those who prefer not to search, lists of the most played, top deals and best free games like Serious Sam: Siberian Mayhem are available at the bottom of the page.

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Vomitoreum

Vomitoreum is an FPS Metroidvania with a focus on atmosphere and horror, inspired by the paintings of Zdzisław Beksiński.

Similarity 59%
Price 8.19€
Rating 8.6
Release 30 Jul 2021

Hubris

Hubris is a VR action-adventure game set in a unique and colourful Sci-Fi universe, with immersive movement options, including swimming, climbing, and jumping. Players will have to gather resources, craft food and upgrade their weapons to fight off alien wildlife, droids, and humanoid enemies.

Similarity 59%
Price 29.99€
Rating 7.2
Release 07 Dec 2022

STAR WARS™ Battlefront

The STAR WARS™ Battlefront™ Ultimate Edition includes the STAR WARS™ Battlefront™ Deluxe Edition as well as the STAR WARS™ Battlefront™ Season Pass.

Similarity 59%
Price 19.99€
Rating 7.6
Release 11 Jun 2020

Blood™ Fresh Supply

Battle an army of sycophantic cultists, zombies, gargoyles, hellhounds, and an insatiable host of horrors in your quest to defeat the evil Tchernobog. Squirm through 42 loathesome levels filled with more atmosphere than a Lovecraftian mausoleum.

Similarity 59%
Price 8.19€
Rating 9.3
Release 09 May 2019

Grimhook

Bounce, dash, and grapple through flooded caverns in this fast-paced first-person action platformer. Descend into Grimhook's sunken ruins as Dart, mastering Lovecraftian powers and decimating robotic foes. Explore, battle, and unravel the mysteries below Miletos.

Similarity 58%
Price Free to play
Rating 9.4
Release 08 Dec 2023

SCP: Observer

SCP: Observer is a frightening experience in which you'll play the role of a maintenance engineer trapped inside a security room. Survive by managing the emergency power supply, monitoring the facility's camera system for threats and blocking the paths of oncoming horrors.

Similarity 58%
Price Free to play
Rating 8.6
Release 25 Apr 2023

RIPOUT

Ripout is an online Co-Op horror FPS that will have players fight their way through procedurally generated derelict ships filled with mutants capable of reconfiguring their alien bodies. Survive with your trusty Pet Gun companion, collect loot, and customize your character to fit your playstyle.

Similarity 58%
Price -50% 9.99€
Rating 6.0
Release 28 May 2024

G String

Slip into the Standard Issue Biosuit as Myo Hyori, a gifted Korean teenage girl who must face the perils of the future. Survive many hazards, explore a seemingly endless metropolis and beyond as the world around you implodes and history marches towards its inevitable conclusion.

Similarity 58%
Price 13.99€
Rating 7.9
Release 16 Oct 2020

Prodeus

Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware.

Similarity 58%
Price -95% 1.25€
Rating 9.0
Release 23 Sep 2022

Red Trigger

Red Trigger is an FPS Puzzle game inspired by Portal, Antichamber and more. Use a gun that can expand or retract red blocks. The catch? You can only expand three blocks at a time - so you need to manage your energy wisely.

Similarity 58%
Price 6.89€
Rating 8.6
Release 08 Jul 2016

The Darkness II

An intense first person shooter that delivers a twisted and gripping narrative of tragedy, modern crime drama, and supernatural horror.

Similarity 58%
Price 29.99€
Rating 9.0
Release 09 Feb 2012

Occult

Occult is a dynamic cooperative game with elements of horror and quest. You are waiting for a variety of opponents, puzzles and endings!

Similarity 58%
Price -25% 2.99€
Rating 7.0
Release 19 May 2022

FOREWARNED

FOREWARNED is a 1-4 player co-op survival horror. Delve deep into ancient Egyptian ruins with your team of fellow archaeologists. Investigate phenomena, collect treasure, discover lore, survive danger, and banish the evil that lurks within.

Similarity 58%
Price -90% 1.13€
Rating 8.8
Release 25 Apr 2024

Arizona Sunshine® 2

It's time to say hello to your old pal, Fred. Arizona Sunshine® 2, the next-gen sequel to the fan-favorite VR apocalypse, packs even more gore-geous zombie action! And what's better than braving the end of the f*cking world alone? Surviving it with your new best friend--Buddy.

Similarity 58%
Price -44% 27.99€
Rating 8.0
Release 07 Dec 2023

STAR WARS™ Republic Commando™

You are the leader of an elite squad of Republic Commandos, your mission is to infiltrate, dominate, and ultimately, annihilate the enemy. Your squad will follow your orders and your lead, working together as a team - instinctively, intelligently, instantly. You are their leader. They are your weapon.

Similarity 58%
Price 9.75€
Rating 9.3
Release 08 Jul 2009

FragPunk

FragPunk is a thrilling 5v5 hero shooter where Shard Cards allow you to break the rules of combat and ensure that no two rounds are ever the same. Get ready to unleash your skills!

Similarity 57%
Price Free to play
Rating 7.2
Release 06 Mar 2025

Forgive Me Father

Forgive Me Father is a dark retro horror FPS set in a comic book style world inspired by the novels of H.P. Lovecraft. As the only one left with full senses, you begin a journey in search of answers and relief. How long can you last?

Similarity 57%
Price -87% 2.57€
Rating 8.2
Release 07 Apr 2022

My Friendly Neighborhood

Something scary is happening with everyone's favorite Saturday morning puppet show, The Friendly Neighborhood! Play as Gordon, a repairman sent to get to the bottom of this disturbing dilemma. Fend off puppets and solve puzzles in this survival horror adventure.

Similarity 57%
Price -95% 1.56€
Rating 9.1
Release 18 Jul 2023

Boomerang X

Harness the power of a mystical boomerang to fling yourself through the air in this acrobatic arena shooter. Slice, fly, and blast through swarms of evil creatures on an abandoned island with a cryptic past. Stay agile or meet your doom.

Similarity 57%
Price -81% 3.74€
Rating 9.0
Release 08 Jul 2021

The Story of Henry Bishop

The story of Henry Bishop is a first-person psychological thriller, where the player will have to fight, guess riddles, immerse into a mystical plot and an incredible story.

Similarity 57%
Price 5.89€
Rating 7.9
Release 07 Nov 2019

The Windows Are Gone

Haunted by grief and guilt after a tragic accident, you start seeing a house in your dreams. No matter what you do, you can't get its image out of your mind. You feel it calling for you, so you answer it.

Similarity 57%
Price Free to play
Rating 8.7
Release 02 Oct 2023

That Which Gave Chase

A first-person dog sledding thriller. Play as a sled dog musher hired to transport a scientist deep into the unforgiving wastes of the arctic.

Similarity 57%
Price 4.99€
Rating 8.6
Release 23 Jun 2023

Eternal Evil

A small town is being taken over by ghouls. Solve puzzles, carefully read notes and use various weapons against horrific and evolving enemies to uncover what is behind this gruesome event. Eternal Evil is an old-school survival-horror game.

Similarity 57%
Price 28.99€
Rating 7.2
Release 01 Nov 2022

Lust from Beyond: M Edition

Descend into madness in a first-person survival horror inspired by Lovecraft and Giger. Solve the mystery of esoteric cults. Cross the gate to the blasphemous land of Lusst’ghaa. Play the new M-rated cut of the fan-favorite Lust from Beyond.

Similarity 57%
Price 14.99€
Rating 6.4
Release 10 Feb 2022

Most played games like Serious Sam: Siberian Mayhem on Steam

Take a look at the top games like Serious Sam: Siberian Mayhem that are currently attracting the largest player bases on the Steam platform, as of April 20th 2025.

1. DayZ

Similarity 52% How long can you survive a post-apocalyptic world? A land overrun with an infected "zombie" population, where you compete with other survivors for limited resources. Will you team up with strangers and stay strong together? Or play as a lone wolf to avoid betrayal? This is DayZ – this is your story. DayZ is a survival, open world and online co-op game developed and published by Bohemia Interactive. Released on December 13th 2018 has received 424,833 reviews of which 325,442 were positive and 99,391 were negative resulting in a rating of 7.6 out of 10. The game has hit the top spot as the #1 most played game like Serious Sam: Siberian Mayhem, thanks to its 44,331 peak concurrent players over the last day.
7.6
325,442
99,391

44,331
players

2. FragPunk

Similarity 57% FragPunk is a thrilling 5v5 hero shooter where Shard Cards allow you to break the rules of combat and ensure that no two rounds are ever the same. Get ready to unleash your skills! FragPunk is a fps, free to play and hero shooter game developed and published by Bad Guitar Studio. Released on March 06th 2025 has received 33,468 reviews of which 24,577 were positive and 8,891 were negative resulting in a rating of 7.2 out of 10. While seeing 8,413 players online at once in the last 24 hours, this game is currently ranked #2 among games like Serious Sam: Siberian Mayhem based on player count.
7.2
24,577
8,891

8,413
players

3. Deep Rock Galactic

Similarity 56% Deep Rock Galactic is a 1-4 player co-op FPS featuring badass space Dwarves, 100% destructible environments, procedurally-generated caves, and endless hordes of alien monsters. Deep Rock Galactic is a dwarf, co-op and pve game developed by Ghost Ship Games and published by Coffee Stain Publishing. Released on May 13th 2020 has received 338,542 reviews of which 329,265 were positive and 9,277 were negative resulting in an impressive rating of 9.6 out of 10. While seeing 6,864 players online at once in the last 24 hours, this game is currently ranked #3 among games like Serious Sam: Siberian Mayhem based on player count.
9.6
329,265
9,277

6,864
players

4. STALCRAFT: X

Similarity 52% STALCRAFT: X is the largest open-world online game in the Chernobyl Exclusion Zone. Explore the world full of mutants and anomalies alone or with friends — unforgettable emotions guaranteed. STALCRAFT: X is a free to play, mmorpg and multiplayer game developed and published by EXBO. Released on December 09th 2022 has received 74,560 reviews of which 56,938 were positive and 17,622 were negative resulting in a rating of 7.6 out of 10. With 5,350 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Serious Sam: Siberian Mayhem.
7.6
56,938
17,622

5,350
players

5. Warhammer 40,000: Darktide

Similarity 51% Take back the city of Tertium from hordes of bloodthirsty foes in this intense and brutal action shooter. Warhammer 40,000: Darktide is the new co-op focused experience from the award-winning team behind the Vermintide series. As Tertium falls, Rejects Will Rise. Warhammer 40,000: Darktide is a action-adventure, horror and combat game developed and published by Fatshark. Released on November 30th 2022 has received 111,015 reviews of which 78,530 were positive and 32,485 were negative resulting in a rating of 7.0 out of 10. With 5,260 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Serious Sam: Siberian Mayhem.
7.0
78,530
32,485

5,260
players

6. Halo: The Master Chief Collection

Similarity 60% The Master Chief’s iconic journey includes six games, built for PC and collected in a single integrated experience. Whether you’re a long-time fan or meeting Spartan 117 for the first time, The Master Chief Collection is the definitive Halo gaming experience. Halo: The Master Chief Collection is a great soundtrack, fps and classic game developed by 343 Industries, Splash Damage, Ruffian Games, Bungie and Saber Interactive and published by Xbox Game Studios. Released on December 03rd 2019 has received 240,140 reviews of which 221,902 were positive and 18,238 were negative resulting in an impressive rating of 9.1 out of 10. With 4,905 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Serious Sam: Siberian Mayhem.
9.1
221,902
18,238

4,905
players

7. Borderlands 2

Similarity 52% The Ultimate Vault Hunter’s Upgrade lets you get the most out of the Borderlands 2 experience. Borderlands 2 is a loot, shooter and action game developed by Gearbox Software, Aspyr (Mac) and Aspyr (Linux) and published by Aspyr (Mac), Aspyr (Linux) and 2K. Released on September 20th 2012 has received 290,406 reviews of which 272,708 were positive and 17,698 were negative resulting in an impressive rating of 9.3 out of 10. With 3,632 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Serious Sam: Siberian Mayhem.
9.3
272,708
17,698

3,632
players

8. SCP: Secret Laboratory

Similarity 59% Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape. SCP: Secret Laboratory is a free to play, multiplayer and horror game developed and published by Northwood Studios. Released on December 29th 2017 has received 211,312 reviews of which 193,314 were positive and 17,998 were negative resulting in an impressive rating of 9.0 out of 10. With 3,262 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like Serious Sam: Siberian Mayhem.
9.0
193,314
17,998

3,262
players

9. Halo Infinite

Similarity 51% From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience. Halo Infinite is a free to play, fps and multiplayer game developed by 343 Industries and published by Xbox Game Studios. Released on November 15th 2021 has received 176,290 reviews of which 123,035 were positive and 53,255 were negative resulting in a rating of 6.9 out of 10. With 2,630 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Serious Sam: Siberian Mayhem.
6.9
123,035
53,255

2,630
players

10. Half-Life 2

Similarity 55% Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat. Half-Life 2 is a fps, action and sci-fi game developed and published by Valve. Released on November 16th 2004 has received 242,104 reviews of which 236,300 were positive and 5,804 were negative resulting in an impressive rating of 9.7 out of 10. With 1,774 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Serious Sam: Siberian Mayhem.
9.7
236,300
5,804

1,774
players

Best deals on games like Serious Sam: Siberian Mayhem on Steam

Discover fantastic savings with the best discounts on a variety of games like Serious Sam: Siberian Mayhem available on Steam right now, updated on April 20th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like Serious Sam: Siberian Mayhem.

1. My Friendly Neighborhood

Similarity 57% Something scary is happening with everyone's favorite Saturday morning puppet show, The Friendly Neighborhood! Play as Gordon, a repairman sent to get to the bottom of this disturbing dilemma. Fend off puppets and solve puzzles in this survival horror adventure. My Friendly Neighborhood is a singleplayer, survival horror and funny game developed by John Szymanski and Evan Szymanski and published by DreadXP. Released on July 18th 2023 has received 2,716 reviews of which 2,597 were positive and 119 were negative resulting in an impressive rating of 9.1 out of 10. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Serious Sam: Siberian Mayhem.
9.1
2,597
119

-95% 31.20€ 1.56€

2. Prodeus

Similarity 58% Prodeus is a first-person shooter of old, re-imagined using modern rendering techniques and technology. Experience the quality you’d expect from a modern AAA game, designed with retro aesthetics and gameplay that invoke the tech-imposed limits of older hardware. Prodeus is a boomer shooter, fps and retro game developed by Bounding Box Software Inc. and published by Humble Games. Released on September 23rd 2022 has received 7,436 reviews of which 6,913 were positive and 523 were negative resulting in an impressive rating of 9 out of 10. Thanks to its incredible 95% discount, this game is now the #2 best deal in games like Serious Sam: Siberian Mayhem.
9
6,913
523

-95% 25.00€ 1.25€

3. Fashion Police Squad

Similarity 65% Even at this moment, our fashionable city is under assault. Baggy pants, dull suits, sightings of socks with sandals. A message needs to be sent, and it needs to be sent in style... Time to serve some good ol' Fashion Justice! Fashion Police Squad is a boomer shooter, fps and arena shooter game developed by Mopeful Games and published by No More Robots. Released on August 15th 2022 has received 1,356 reviews of which 1,196 were positive and 160 were negative resulting in a rating of 8.4 out of 10. Thanks to its incredible 95% discount, this game is now the #3 best deal in games like Serious Sam: Siberian Mayhem.
8.4
1,196
160

-95% 20.00€ 1.00€

4. INDUSTRIA

Similarity 55% Embark on a gripping journey in INDUSTRIA, an atmospheric FPS set in Cold War-era East Berlin. Unravel the secrets of a mysterious parallel dimension while searching for a missing colleague. Explore a haunting reality where the truth awaits. Discover the dark past that lies beyond. INDUSTRIA is a fps, action and sci-fi game developed by Bleakmill and published by Headup. Released on September 30th 2021 has received 3,188 reviews of which 2,265 were positive and 923 were negative resulting in a rating of 6.9 out of 10. Currently offered at a significant 95% discount, this title has earned the #4 position in the best deals for games like Serious Sam: Siberian Mayhem.
6.9
2,265
923

-95% 20.00€ 1.00€

5. Hunting Simulator 2

Similarity 52% With your hunting dog by your side, explore the Texan desert and forests of Colorado and Europe as you track down 33 animal species. Choose your gear from over 160 official weapons, accessories and clothing items (including Browning, Winchester and Bushnell). Hunting Simulator 2 is a action, hunting and adventure game developed by Nacon Studio Ghent and published by Nacon. Released on July 16th 2020 has received 855 reviews of which 573 were positive and 282 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 94% discount, this title has earned the #5 position in the best deals for games like Serious Sam: Siberian Mayhem.
6.5
573
282

-94% 43.00€ 2.58€

6. Shadow Warrior

Similarity 52% Shadow Warrior is a bold reimagining of the classic 3D Realms’ shooter from independent developer Flying Wild Hog (Hard Reset) starring the legendary and quick-witted warrior Lo Wang. Shadow Warrior is a action, fps and swordplay game developed by Flying Wild Hog and published by Devolver Digital. Released on September 26th 2013 has received 26,069 reviews of which 24,000 were positive and 2,069 were negative resulting in an impressive rating of 9.0 out of 10. Currently offered at a significant 93% discount, this title has earned the #6 position in the best deals for games like Serious Sam: Siberian Mayhem.
9.0
24,000
2,069

-93% 28.00€ 1.96€

7. SPRAWL

Similarity 61% SPRAWL is a hardcore retro FPS set in an endless cyberpunk megalopolis. Escape the walled city and take on the militarized government of the sprawl. Fueled by the blood of your enemies and a mysterious voice in your head, make your way towards the spire to topple whatever lays within. SPRAWL is a controller, sci-fi and combat game developed by MAETH and published by Rogue Games and Inc.. Released on August 23rd 2023 has received 1,950 reviews of which 1,712 were positive and 238 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 93% discount, this title has earned the #7 position in the best deals for games like Serious Sam: Siberian Mayhem.
8.4
1,712
238

-93% 15.14€ 1.06€

8. Borderlands: The Pre-Sequel

Similarity 54% Launch into the Borderlands universe and shoot ‘n’ loot your way through a brand new adventure that rockets you onto Pandora’s moon in Borderlands: The Pre-Sequel! Borderlands: The Pre-Sequel is a looter shooter, co-op and fps game developed by 2K Australia, Gearbox Software and Aspyr (Linux) and published by Aspyr (Linux) and 2K. Released on October 16th 2014 has received 41,144 reviews of which 33,531 were positive and 7,613 were negative resulting in a rating of 8.0 out of 10. Currently offered at a significant 93% discount, this title has earned the #8 position in the best deals for games like Serious Sam: Siberian Mayhem.
8.0
33,531
7,613

-93% 41.86€ 2.93€

9. F.E.A.R. 3

Similarity 60% F.E.A.R. 3 delivers all the hallmarks that define the F.E.A.R. brand: terrifying paranormal experience, frenetic combat and a dramatic storyline. F.E.A.R. 3 is a fps, horror and co-op game developed by Day 1 Studios and published by Warner Bros. Interactive Entertainment. Released on June 21st 2011 has received 12,640 reviews of which 9,005 were positive and 3,635 were negative resulting in a rating of 7 out of 10. Currently offered at a significant 93% discount, this title has earned the #9 position in the best deals for games like Serious Sam: Siberian Mayhem.
7
9,005
3,635

-93% 19.71€ 1.38€

10. Metro: Last Light Redux

Similarity 55% It is the year 2034. Beneath the ruins of post-apocalyptic Moscow, in the tunnels of the Metro, the remnants of mankind are besieged by deadly threats from outside – and within. Mutants stalk the catacombs beneath the desolate surface, and hunt amidst the poisoned skies above. Metro: Last Light Redux is a post-apocalyptic, fps and atmospheric game developed by 4A Games and published by Deep Silver. Released on August 27th 2014 has received 68,992 reviews of which 62,486 were positive and 6,506 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 92% discount, this title has earned the #10 position in the best deals for games like Serious Sam: Siberian Mayhem.
8.9
62,486
6,506

-92% 19.75€ 1.58€

Free games like Serious Sam: Siberian Mayhem on Steam

Check out this fantastic list of free-to-play games like Serious Sam: Siberian Mayhem you can enjoy on Steam right now, updated on April 20th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like Serious Sam: Siberian Mayhem.

1. FragPunk

Similarity 57% FragPunk is a thrilling 5v5 hero shooter where Shard Cards allow you to break the rules of combat and ensure that no two rounds are ever the same. Get ready to unleash your skills! FragPunk is a fps, free to play and hero shooter game developed and published by Bad Guitar Studio. Released on March 06th 2025 has received 33,468 reviews of which 24,577 were positive and 8,891 were negative resulting in a rating of 7.2 out of 10. With 8,413 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Serious Sam: Siberian Mayhem.
7.2
24,577
8,891

8,413
players

2. STALCRAFT: X

Similarity 52% STALCRAFT: X is the largest open-world online game in the Chernobyl Exclusion Zone. Explore the world full of mutants and anomalies alone or with friends — unforgettable emotions guaranteed. STALCRAFT: X is a free to play, mmorpg and multiplayer game developed and published by EXBO. Released on December 09th 2022 has received 74,560 reviews of which 56,938 were positive and 17,622 were negative resulting in a rating of 7.6 out of 10. Thanks to its free to play tag and a daily player base of 5,350, this game has secured the #2 spot in the ranking of free games like Serious Sam: Siberian Mayhem.
7.6
56,938
17,622

5,350
players

3. SCP: Secret Laboratory

Similarity 59% Deep within a secure underground facility, a sudden containment breach allows many of the secured anomalies to escape from their chambers. Assist the Foundation in re-securing the facility, help the Insurgency in their goal to capture it, or wreak havoc as an SCP in a frantic bid to escape. SCP: Secret Laboratory is a free to play, multiplayer and horror game developed and published by Northwood Studios. Released on December 29th 2017 has received 211,312 reviews of which 193,314 were positive and 17,998 were negative resulting in an impressive rating of 9.0 out of 10. Thanks to its free to play tag and a daily player base of 3,262, this game has secured the #3 spot in the ranking of free games like Serious Sam: Siberian Mayhem.
9.0
193,314
17,998

3,262
players

4. Halo Infinite

Similarity 51% From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience. Halo Infinite is a free to play, fps and multiplayer game developed by 343 Industries and published by Xbox Game Studios. Released on November 15th 2021 has received 176,290 reviews of which 123,035 were positive and 53,255 were negative resulting in a rating of 6.9 out of 10. Attracting a solid base of 2,630 players due to its free access, this strategy game has achieved the #4 position in the best free games like Serious Sam: Siberian Mayhem.
6.9
123,035
53,255

2,630
players

5. No More Room in Hell

Similarity 52% The chances of you surviving this all out war of society and the undead are slim to none. Already, there are millions of the walking dead shambling about, searching for food to eat. There's no known cure. One bite can possibly end it all for you. However, you aren't alone in this nightmare. No More Room in Hell is a free to play, zombies and multiplayer game developed by No More Room in Hell Team and published by Lever Games. Released on October 31st 2013 has received 73,900 reviews of which 66,431 were positive and 7,469 were negative resulting in a rating of 8.9 out of 10. Attracting a solid base of 465 players due to its free access, this strategy game has achieved the #5 position in the best free games like Serious Sam: Siberian Mayhem.
8.9
66,431
7,469

465
players

6. Cry of Fear

Similarity 55% Cry of Fear is a psychological single-player and co-op horror game set in a deserted town filled with horrific creatures and nightmarish delusions. You play as a young man desperately searching for answers in the cold Scandinavian night, finding his way through the city as he slowly descends into madness. Cry of Fear is a horror, free to play and multiplayer game developed and published by Team Psykskallar. Released on April 25th 2013 has received 73,301 reviews of which 64,872 were positive and 8,429 were negative resulting in a rating of 8.7 out of 10. Attracting a solid base of 456 players due to its free access, this strategy game has achieved the #6 position in the best free games like Serious Sam: Siberian Mayhem.
8.7
64,872
8,429

456
players

7. Counter-Strike Nexon

Similarity 54% Counter-Strike Nexon is a Free to Play MMOFPS offering competitive PvP and PvE action including content from the original Counter-Strike and all new game modes, map creation function, weapons, and hordes of Zombies! Counter-Strike Nexon is a free to play, fps and zombies game developed by Valve and NEXON and published by NEXON. Released on October 07th 2014 has received 42,600 reviews of which 28,314 were positive and 14,286 were negative resulting in a rating of 6.6 out of 10. Attracting a solid base of 283 players due to its free access, this strategy game has achieved the #7 position in the best free games like Serious Sam: Siberian Mayhem.
6.6
28,314
14,286

283
players

8. Classic Marathon

Similarity 60% From the team that brought you Aleph One, the classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community. Classic Marathon is a fps, shooter and pvp game developed and published by Aleph One Developers. Released on May 10th 2024 has received 853 reviews of which 787 were positive and 66 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #8 spot among the most played free games like Serious Sam: Siberian Mayhem.
8.7
787
66

100
players

9. Garten of Banban 0

Similarity 53% Explore the origins of the mysterious Banban’s Kindergarten. Survive the dark past of the establishment. Try to make some friends. Uncover the truth behind the place, and who you are… Garten of Banban 0 is a horror, singleplayer and first-person game developed and published by Euphoric Brothers. Released on February 21st 2025 has received 2,497 reviews of which 1,810 were positive and 687 were negative resulting in a rating of 7.0 out of 10. The game currently holds the #9 spot among the most played free games like Serious Sam: Siberian Mayhem.
7.0
1,810
687

82
players

10. Knightfall: A Daring Journey

Similarity 52% Two knights, a strong bond, and a long journey. Take up the race for the rose, ride from town to town and take shelter before nightfall by any means necessary! If your bond is strong and your horse drifts well, you can be the recipient of the fabled rose. Luckily you brought guns! Knightfall: A Daring Journey is a indie, racing and horses game developed by and published by landfall. Released on April 01st 2022 has received 7,644 reviews of which 6,822 were positive and 822 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #10 spot among the most played free games like Serious Sam: Siberian Mayhem.
8.7
6,822
822

68
players