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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Shadow Man Remastered

He is coming, stalking criminals in the spirit world and the real world. A possessed man is coming, a voodoo mask in his chest and lines of power in his back. Shadow Man is coming, trailing evil from Liveside to Deadside. To stop an apocalypse. To save your soul.

Similarity 62%
Price -53% 7.81€
Rating 8.9
Release 15 Apr 2021

Nosferatu: The Wrath of Malachi

It is a misty evening in the year of our lord 1912. The Pattersons, a poor but proud aristocratic family of the British nobility, and some of their closest friends, arrive at the castle Malachi residence of a wealthy Romanian Count.

Similarity 62%
Price -61% 1.18€
Rating 8.4
Release 06 Mar 2014

Dino Trauma

Dino Trauma introduces you to a secret laboratory somewhere in eastern Europe where gore and dinosaurs aren't unusual things. Retro FPS inspired by the '90s legends.

Similarity 62%
Price 12.79€
Rating 8.6
Release 28 Apr 2023

BioShock™ 2 Remastered

In BioShock 2, you step into the boots of the most iconic denizen of Rapture, the Big Daddy, as you explore through the decrepit and beautiful fallen city, chasing an unseen foe in search of answers and your own survival.

Similarity 62%
Price 19.99€
Rating 7.0
Release 15 Sep 2016

Mars: War Logs

An Intense Cyberpunk Rpg On the Red Planet! Mars War Logs takes you to Mars, nearly a century after the cataclysm that threw the planet and its colonists into chaos. Water has become the most precious resource on the arid red planet, with a few companies fighting a perpetual war for its control.

Similarity 62%
Price -66% 1.72€
Rating 7.3
Release 26 Apr 2013

BioShock® 2

Set approximately 10 years after the events of the original BioShock, the halls of Rapture once again echo with sins of the past. Along the Atlantic coastline, a monster has been snatching little girls and bringing them back to the undersea city of Rapture.

Similarity 62%
Price 19.99€
Rating 8.7
Release 09 Feb 2010

Aliens versus Predator Classic 2000

Aliens Versus Predator Classic 2000 features the Colonial Marine, Alien and Predator Campaigns and the frenetic single-player Skirmish mode from the original title: Alien Versus Predator Gold Edition, which was released to massive acclaim in 2000.

Similarity 62%
Price -67% 1.64€
Rating 8.4
Release 15 Jan 2010

Echo Point Nova

Echo Point Nova is an open-world FPS that offers unparalleled freedom and thrilling speed. Designed for both singleplayer and coop. From the creators of Severed Steel.

Similarity 61%
Price 24.50€
Rating 9.4
Release 24 Sep 2024

SPRAWL

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.

Similarity 61%
Price -93% 1.06€
Rating 8.4
Release 23 Aug 2023

Angry Angry Shark

Play with friends against endless waves of man eater sharks.

Similarity 61%
Price Free to play
Rating 7.8
Release 01 Jan 2022

BioShock™ Remastered

BioShock is a shooter unlike any other, loaded with unique weapons and tactics. Complete with an arsenal of revolvers, shotguns, and grenade launchers, players will be forced to genetically modify their DNA to become an even deadlier weapon.

Similarity 61%
Price 19.99€
Rating 8.1
Release 15 Sep 2016

BioShock™

BioShock is a shooter unlike any you've ever played, loaded with weapons and tactics never seen. You'll have a complete arsenal at your disposal from simple revolvers to grenade launchers and chemical throwers, but you'll also be forced to genetically modify your DNA to create an even more deadly weapon: you.

Similarity 61%
Price 19.99€
Rating 9.2
Release 21 Aug 2007

Heretic: Shadow of the Serpent Riders

In a realm corrupted by the evil magic of three brothers known as the Serpent Riders, you are a heretic. As one of the last Sidhe elves, and a capable mage, you embark on a quest for vengeance against those who slaughtered your friends, family, and entire race.

Similarity 61%
Price 4.99€
Rating 8.9
Release 03 Aug 2007

Cakey's Twisted Bakery

It's bake or die at Cakey's Bakery, where human children are the secret ingredient to strange monsters' delicious pastries. Find the recipe for survival to escape the bakery and it's sweet and scary staff!

Similarity 61%
Price 4.59€
Rating 6.8
Release 05 Jul 2024

Beyond Hanwell

Explore Westminster, London on a journey to the ruins of Hanwell. Fight with whatever you can find or use the environment to defend yourself against an ever increasing scourge of Anomalies.

Similarity 61%
Price 24.50€
Rating 7.3
Release 26 Sep 2024

Far Cry® 6

Enter the adrenaline-filled world of a modern-day guerrilla revolution. With stunning vistas, visceral gunplay, and a huge variety of gameplay experiences, there's never been a better time to join the fight.

Similarity 61%
Price -75% 14.99€
Rating 7.1
Release 11 May 2023

EMPTY SHELL

EMPTY SHELL will throw you in a dark industrial environment, a secret facility on a Japanese island. Each volunteer has signed a contract for a "recovery operation" without being privy to too many details. A tense roguelite survival horror with a top down perspective.

Similarity 61%
Price 11.99€
Rating 8.3
Release 16 Oct 2023

Hedon Bloodrite

Zan and her orc sisters must fight to save their homeland from a demonic invasion! Immerse yourself in a sprawling underground world where the rich lore, exploration and puzzles of classic adventure games blend with the visceral combat of a 90s' shooter.

Similarity 61%
Price 16.49€
Rating 8.7
Release 16 May 2019

Return to Castle Wolfenstein

World War II rages and nations fall. The Nazis are twisting science and the occult into an army capable of annihilating the Allies once and for all. As US Army Ranger William “B.J.” Blazkowicz, pierce the black heart of the Third Reich and stop them...or die trying.

Similarity 61%
Price -71% 1.47€
Rating 9.0
Release 03 Aug 2007

Counter-Strike: Condition Zero

With its extensive Tour of Duty campaign, a near-limitless number of skirmish modes, updates and new content for Counter-Strike's award-winning multiplayer game play, plus over 12 bonus single player missions, Counter-Strike: Condition Zero is a tremendous offering of single and multiplayer content.

Similarity 61%
Price 8.19€
Rating 8.9
Release 01 Mar 2004

Slayers X: Terminal Aftermath: Vengance of the Slayer

So.... got what it takes to be a X Slayer?!?... 7 weapons, blood and gore, twisted music by Seepage & Psyko Syndikate, and maps where you can blow up everything. its awesome. started making it in 1998 in high school with my friend and now im 37, so i have life experience now.

Similarity 60%
Price -25% 12.36€
Rating 9.2
Release 01 Jun 2023

KLETKA

KLETKA is a co-op (up to 6 players) horror game about going down in an elevator that is trying to eat you. Feed the elevator, explore deadly floors and descend deeper.

Similarity 60%
Price 9.75€
Rating 8.9
Release 13 Dec 2024

The Citadel

The Citadel is a brutal first person shooter, and a love letter to classic games such as Marathon, Doom and Wolfenstein 3d. Descend into the depths of a dark citadel, and fight through 6 Episodes and 30 levels of action packed with 6 challenging bosses. Go forth, Martyr.

Similarity 60%
Price 12.49€
Rating 8.8
Release 05 Aug 2020

Classic Marathon

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.

Similarity 60%
Price Free to play
Rating 8.7
Release 10 May 2024

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 30th 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 426,541 reviews of which 326,984 were positive and 99,557 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 31,544 peak concurrent players over the last day.
7.6
326,984
99,557

31,544
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 35,920 reviews of which 26,418 were positive and 9,502 were negative resulting in a rating of 7.3 out of 10. While seeing 7,932 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.
7.3
26,418
9,502

7,932
players

3. 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 240,453 reviews of which 222,169 were positive and 18,284 were negative resulting in an impressive rating of 9.1 out of 10. While seeing 4,638 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.
9.1
222,169
18,284

4,638
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 75,642 reviews of which 57,632 were positive and 18,010 were negative resulting in a rating of 7.5 out of 10. With 4,312 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Serious Sam: Siberian Mayhem.
7.5
57,632
18,010

4,312
players

5. 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 339,834 reviews of which 330,525 were positive and 9,309 were negative resulting in an impressive rating of 9.6 out of 10. With 3,898 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Serious Sam: Siberian Mayhem.
9.6
330,525
9,309

3,898
players

6. 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 111,235 reviews of which 78,755 were positive and 32,480 were negative resulting in a rating of 7.0 out of 10. With 3,373 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Serious Sam: Siberian Mayhem.
7.0
78,755
32,480

3,373
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 291,128 reviews of which 272,876 were positive and 18,252 were negative resulting in an impressive rating of 9.3 out of 10. With 2,341 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
272,876
18,252

2,341
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 212,134 reviews of which 194,042 were positive and 18,092 were negative resulting in an impressive rating of 9.0 out of 10. With 2,310 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
194,042
18,092

2,310
players

9. DOOM Eternal

Similarity 57% Hell’s armies have invaded Earth. Become the Slayer in an epic single-player campaign to conquer demons across dimensions and stop the final destruction of humanity. The only thing they fear... is you. DOOM Eternal is a fps, action and gore game developed by id Software and published by Bethesda Softworks. Released on March 19th 2020 has received 203,103 reviews of which 185,114 were positive and 17,989 were negative resulting in an impressive rating of 9.0 out of 10. With 1,470 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like Serious Sam: Siberian Mayhem.
9.0
185,114
17,989

1,470
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 242,865 reviews of which 237,035 were positive and 5,830 were negative resulting in an impressive rating of 9.7 out of 10. With 1,234 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
237,035
5,830

1,234
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 30th 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 2,725 reviews of which 2,606 were positive and 119 were negative resulting in an impressive rating of 9.1 out of 10. Featuring a massive 96% discount, this game currently holds the #1 spot in the best deals for games like Serious Sam: Siberian Mayhem.
9.1
2,606
119

-96% 32.50€ 1.30€

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 7,473 reviews of which 6,947 were positive and 526 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
6,947
526

-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 1,360 reviews of which 1,198 were positive and 162 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
1,198
162

-95% 20.00€ 1.00€

4. 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 858 reviews of which 576 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 #4 position in the best deals for games like Serious Sam: Siberian Mayhem.
6.5
576
282

-94% 43.00€ 2.58€

5. 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 1,961 reviews of which 1,721 were positive and 240 were negative resulting in a rating of 8.4 out of 10. Currently offered at a significant 93% discount, this title has earned the #5 position in the best deals for games like Serious Sam: Siberian Mayhem.
8.4
1,721
240

-93% 15.14€ 1.06€

6. 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 41,307 reviews of which 33,563 were positive and 7,744 were negative resulting in a rating of 8 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.
8
33,563
7,744

-93% 42.00€ 2.94€

7. 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 12,665 reviews of which 9,019 were positive and 3,646 were negative resulting in a rating of 7 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.
7
9,019
3,646

-93% 19.71€ 1.38€

8. 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 3,200 reviews of which 2,273 were positive and 927 were negative resulting in a rating of 6.9 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.
6.9
2,273
927

-93% 20.29€ 1.42€

9. Them and Us

Similarity 53% Them and Us is a classic, survival horror game with a focus on atmosphere and player immersion. Discover the truth of Alicia’s past as she descends further into her strange, unending nightmare. Them and Us is a female protagonist, survival horror and horror game developed by TendoGames Co. and Ltd. and published by TendoGames Co., Ltd. and 方块游戏(CubeGame). Released on September 28th 2021 has received 1,368 reviews of which 1,044 were positive and 324 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 92% discount, this title has earned the #9 position in the best deals for games like Serious Sam: Siberian Mayhem.
7.3
1,044
324

-92% 32.50€ 2.60€

10. Tormented Souls

Similarity 55% Classic survival horror is back! Inspired by the original Resident Evil and Alone in the Dark series, Tormented Souls modernises with a fresh twist on the fixed perspective adventure - as Caroline Walker investigates the mysterious disappearance of twin girls in a terrifying mansion-turned-hospital. Tormented Souls is a survival horror, horror and puzzle game developed by Dual Effect and Abstract Digital and published by PQube. Released on August 26th 2021 has received 5,972 reviews of which 5,446 were positive and 526 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 91% discount, this title has earned the #10 position in the best deals for games like Serious Sam: Siberian Mayhem.
8.8
5,446
526

-91% 19.56€ 1.76€

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 30th 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 35,920 reviews of which 26,418 were positive and 9,502 were negative resulting in a rating of 7.3 out of 10. With 7,932 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Serious Sam: Siberian Mayhem.
7.3
26,418
9,502

7,932
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 75,642 reviews of which 57,632 were positive and 18,010 were negative resulting in a rating of 7.5 out of 10. Thanks to its free to play tag and a daily player base of 4,312, this game has secured the #2 spot in the ranking of free games like Serious Sam: Siberian Mayhem.
7.5
57,632
18,010

4,312
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 212,134 reviews of which 194,042 were positive and 18,092 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 2,310, this game has secured the #3 spot in the ranking of free games like Serious Sam: Siberian Mayhem.
9.0
194,042
18,092

2,310
players

4. 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 74,001 reviews of which 66,520 were positive and 7,481 were negative resulting in a rating of 8.9 out of 10. Attracting a solid base of 312 players due to its free access, this strategy game has achieved the #4 position in the best free games like Serious Sam: Siberian Mayhem.
8.9
66,520
7,481

312
players

5. 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 73,466 reviews of which 65,020 were positive and 8,446 were negative resulting in a rating of 8.7 out of 10. Attracting a solid base of 275 players due to its free access, this strategy game has achieved the #5 position in the best free games like Serious Sam: Siberian Mayhem.
8.7
65,020
8,446

275
players

6. 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 42,618 reviews of which 28,330 were positive and 14,288 were negative resulting in a rating of 6.6 out of 10. Attracting a solid base of 219 players due to its free access, this strategy game has achieved the #6 position in the best free games like Serious Sam: Siberian Mayhem.
6.6
28,330
14,288

219
players

7. 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 2,548 reviews of which 1,848 were positive and 700 were negative resulting in a rating of 7.0 out of 10. The game currently holds the #7 spot among the most played free games like Serious Sam: Siberian Mayhem.
7.0
1,848
700

62
players

8. PAPERHEAD EP.0

Similarity 63% In this cute cardboard world, something went horribly wrong... You wake up in a prison cell. A strange voice calls to you from the depths of dark corridors covered in runic symbols and blood. Reload your trusty shotgun and find out... WHY WOULD CARDBOARD... BLEED? PAPERHEAD EP.0 is a fps, fast-paced and singleplayer game developed by Paperhead te4m and published by HypeTrain Digital. Released on November 14th 2024 has received 1,560 reviews of which 1,455 were positive and 105 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #8 spot among the most played free games like Serious Sam: Siberian Mayhem.
8.9
1,455
105

38
players

9. 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 883 reviews of which 812 were positive and 71 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #9 spot among the most played free games like Serious Sam: Siberian Mayhem.
8.7
812
71

26
players

10. Zombie Panic! Source

Similarity 59% Dive into the zombie apocalypse with Zombie Panic! Source: a cooperative, survival-horror first-person-shooter. A fast-paced standalone modification. Zombie Panic! Source is a free to play, zombies and multiplayer game developed and published by Zombie Panic! Team. Released on October 03rd 2008 has received 7,717 reviews of which 6,533 were positive and 1,184 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #10 spot among the most played free games like Serious Sam: Siberian Mayhem.
8.2
6,533
1,184

19
players