Games like The Callisto Protocol™ on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like The Callisto Protocol™ are available at the bottom of the page.
Filters & Lists
Dead Space
The sci-fi survival-horror classic returns, completely rebuilt to offer an even more immersive experience — including visual, audio, and gameplay improvements — while staying faithful to the original game’s thrilling vision.
Dead Space™ 2
Three years after the Necromorph infestation aboard the USS Ishimura, Isaac Clarke awakens from a coma, confused, disoriented, and on a space station called The Sprawl. Explore this world and its zero-g environments to discover the truth about the Unitology and its role in the Necromorph epidemic.
Dead Space (2008)
You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.
The Thing: Remastered
The Thing: Remastered is a faithful restoration of the cult-classic 2002 third-person survival horror shooter game inspired by Universal Pictures’ genre-defining 1982 film, The Thing
Endoparasitic 2
Three limbs ripped off, infected with a deadly parasite, you must survive. Drag yourself through the hallways of an infested arcship, fight off twisted eldritch creatures, craft vaccines and ammunition, and escape to civilization.
Cold Fear™
In a ferocious Arctic storm, distress signals are sent from a mysterious Russian whaler. As leading Coast Guard veteran Tom Hansen, you board to investigate and discover unthinkable horrors lurking beneath the ship's bloodstained decks.
STAR WARS™: Bounty Hunter™
Bring In Your Bounty, Dead or Alive
Dead Space™ 3
Journey across space to the icy planet of Tau Volantis with Isaac Clarke and Sgt. John Carver to discover and destroy the source of the Necromorph outbreak.
Resident Evil 4
Survival is just the beginning. Six years have passed since the biological disaster in Raccoon City. Leon S. Kennedy, one of the survivors, tracks the president's kidnapped daughter to a secluded European village, where there is something terribly wrong with the locals.
Rogue Trooper
Nu Earth: a poisoned planet where endless war rages between the Norts and the Southers. A futile struggle on a hostile planet with no end in sight. But there are tales of a lone warrior. A man who knows no allegiance, the Rogue Trooper!
Alien: Isolation
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger.
Ghostbusters: The Video Game Remastered
The beloved and critically acclaimed Ghostbusters video game is back! Strap on your proton pack once again and join the Ghostbusters on the adventure with the voice and likeness of the original crew as you battle to save New York!
Daymare: 1994 Sandcastle
Daymare: 1994 Sandcastle is a third-person story-driven survival horror game prequel to the critically acclaimed Daymare: 1998. Step into the shoes of agent Dalila Reyes, a former government spy now in the service of H.A.D.E.S. unit and prepare to face the true horror.
LOST PLANET® 3
The extreme and unpredictable conditions that characterized the Lost Planet series return, harsher than ever before. Lost Planet 3 reveals new truths about the foreboding planet and the colonial history of E.D.N. III.
Ruined Nurse
Explore the hospital by Thwarting the creatures that are trying to stop you and solving puzzles. Successfully install the internet and surprise customer...
EARTH DEFENSE FORCE 6
Live the future of despair.The year is 2024 AD. The survivors fought against the remaining threats while trying their best to continue their recovery.Three years passed in the year 2027. In a new world without hope, the time has come to once again resist the fate of the Earth.
Resident Evil Revelations
Resident Evil® Revelations returns redefined for PC complete with high quality HD visuals, enhanced lighting effects and an immersive sound experience.
Aliens: Fireteam Elite
Aliens: Fireteam Elite is a cooperative third-person survival game set in the iconic Alien Universe. Battle through hordes of different types of Xenomorph, customize your character and gear, and level-up as you try to contain this ever-growing threat.
Dark Sector
A third-person Action/Shooter that thrusts players into a sci-fi flavored nightmare scenario set in the post Cold War era.
War Tech Fighters
War Tech Fighters - the space action game that combines the spectacular action of Japanese Anime with Hollywood Blockbusters. Configure, upgrade and customize your War Tech and dive into battle to fight back the Zatronian forces and save your galaxy!
Them and Us
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.
Binary Domain
Set in futuristic Tokyo, take control of the robotic community before they control everything!
Mass Effect (2007)
As Commander Shepard, you lead an elite squad on a heroic, action-packed adventure throughout the galaxy.
Most played games like The Callisto Protocol™ on Steam
Take a look at the top games like The Callisto Protocol™ that are currently attracting the largest player bases on the Steam platform, as of June 15th 2025.
1. HELLDIVERS™ 2
Similarity 49% The Galaxy’s Last Line of Offence. Enlist in the Helldivers and join the fight for freedom across a hostile galaxy in a fast, frantic, and ferocious third-person shooter. HELLDIVERS™ 2 is a online co-op, pve and third-person shooter game developed by Arrowhead Game Studios and published by PlayStation Publishing LLC. Released on February 08th 2024 has received 1,017,635 reviews of which 775,883 were positive and 241,752 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 The Callisto Protocol™, thanks to its 59,219 peak concurrent players over the last day.
7.6
775,883
241,752
59,219
players
2. Resident Evil 4
Similarity 59% Survival is just the beginning. Six years have passed since the biological disaster in Raccoon City. Leon S. Kennedy, one of the survivors, tracks the president's kidnapped daughter to a secluded European village, where there is something terribly wrong with the locals. Resident Evil 4 is a horror, action and survival horror game developed and published by CAPCOM Co. and Ltd.. Released on March 23rd 2023 has received 181,708 reviews of which 177,539 were positive and 4,169 were negative resulting in an impressive rating of 9.7 out of 10. While seeing 8,615 players online at once in the last 24 hours, this game is currently ranked #2 among games like The Callisto Protocol™ based on player count.
9.7
177,539
4,169
8,615
players
3. STAR WARS™ Battlefront™ II
Similarity 43% Be the hero in the ultimate STAR WARS™ battle fantasy with STAR WARS™ Battlefront™ II: Celebration Edition! STAR WARS™ Battlefront™ II is a multiplayer, shooter and singleplayer game developed by DICE and published by Electronic Arts. Released on June 11th 2020 has received 71,208 reviews of which 62,342 were positive and 8,866 were negative resulting in a rating of 8.6 out of 10. While seeing 7,745 players online at once in the last 24 hours, this game is currently ranked #3 among games like The Callisto Protocol™ based on player count.
8.6
62,342
8,866
7,745
players
4. Warhammer 40,000: Space Marine 2
Similarity 44% Embody the superhuman skill and brutality of a Space Marine. Unleash deadly abilities and devastating weaponry to obliterate the relentless Tyranid swarms. Defend the Imperium in spectacular third-person action in solo or multiplayer modes. Warhammer 40,000: Space Marine 2 is a warhammer 40k, action and third-person shooter game developed by Saber Interactive and published by Focus Entertainment. Released on September 09th 2024 has received 162,585 reviews of which 134,739 were positive and 27,846 were negative resulting in a rating of 8.2 out of 10. With 7,175 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like The Callisto Protocol™.
8.2
134,739
27,846
7,175
players
5. Resident Evil Village
Similarity 41% Experience survival horror like never before in the 8th major installment in the Resident Evil franchise - Resident Evil Village. With detailed graphics, intense first-person action and masterful storytelling, the terror has never felt more realistic. Resident Evil Village is a survival horror, horror and first-person game developed and published by CAPCOM Co. and Ltd.. Released on May 06th 2021 has received 119,350 reviews of which 114,131 were positive and 5,219 were negative resulting in an impressive rating of 9.4 out of 10. With 5,300 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like The Callisto Protocol™.
9.4
114,131
5,219
5,300
players
6. The Last of Us™ Part II Remastered
Similarity 45% Experience the winner of over 300 Game of the Year awards, now on PC. Discover Ellie and Abby’s story with graphical enhancements, gameplay modes like the roguelike survival experience No Return, and more. The Last of Us™ Part II Remastered is a story rich, post-apocalyptic and third-person shooter game developed by Naughty Dog LLC, Nixxes Software and Iron Galaxy Studios and published by PlayStation Publishing LLC. Released on April 03rd 2025 has received 24,774 reviews of which 22,421 were positive and 2,353 were negative resulting in a rating of 8.9 out of 10. With 4,505 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like The Callisto Protocol™.
8.9
22,421
2,353
4,505
players
7. Resident Evil 2
Similarity 44% A deadly virus engulfs the residents of Raccoon City in September of 1998, plunging the city into chaos as flesh eating zombies roam the streets for survivors. An unparalleled adrenaline rush, gripping storyline, and unimaginable horrors await you. Witness the return of Resident Evil 2. Resident Evil 2 is a zombies, survival horror and horror game developed and published by CAPCOM Co. and Ltd.. Released on January 24th 2019 has received 172,857 reviews of which 167,647 were positive and 5,210 were negative resulting in an impressive rating of 9.6 out of 10. With 3,907 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like The Callisto Protocol™.
9.6
167,647
5,210
3,907
players
8. The Outlast Trials
Similarity 43% Red Barrels invites you to experience mind-numbing terror, this time with friends. Whether you go through the trials alone or in teams, if you survive long enough and complete the therapy, Murkoff will happily let you leave… but will you be the same? The Outlast Trials is a horror, multiplayer and co-op game developed and published by Red Barrels. Released on March 05th 2024 has received 66,956 reviews of which 62,533 were positive and 4,423 were negative resulting in an impressive rating of 9.2 out of 10. With 3,501 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like The Callisto Protocol™.
9.2
62,533
4,423
3,501
players
9. The Last of Us™ Part I
Similarity 51% Discover the award-winning game that inspired the critically acclaimed television show. Guide Joel and Ellie through a post-apocalyptic America, and encounter unforgettable allies and enemies in The Last of Us™. The Last of Us™ Part I is a story rich, post-apocalyptic and zombies game developed by Naughty Dog LLC and Iron Galaxy Studios and published by PlayStation Publishing LLC. Released on March 28th 2023 has received 79,855 reviews of which 63,713 were positive and 16,142 were negative resulting in a rating of 7.9 out of 10. With 3,331 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like The Callisto Protocol™.
7.9
63,713
16,142
3,331
players
10. Mass Effect™ Legendary Edition
Similarity 43% The Mass Effect™ Legendary Edition includes single-player base content and over 40 DLC from the highly acclaimed Mass Effect, Mass Effect 2, and Mass Effect 3 games, including promo weapons, armors, and packs — remastered and optimized for 4K Ultra HD. Mass Effect™ Legendary Edition is a story rich, rpg and choices matter game developed by BioWare and published by Electronic Arts. Released on May 14th 2021 has received 56,328 reviews of which 51,295 were positive and 5,033 were negative resulting in a rating of 9.0 out of 10. With 2,971 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like The Callisto Protocol™.
9.0
51,295
5,033
2,971
players
Best deals on games like The Callisto Protocol™ on Steam
Discover fantastic savings with the best discounts on a variety of games like The Callisto Protocol™ available on Steam right now, updated on June 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like The Callisto Protocol™.
1. Daymare: 1998
Similarity 51% DAYMARE: 1998 is a third-person survival horror game that recreates the mood of iconic titles from the '90s, with a fresh storyline. An incident that turns a small town into a deadly zone, three characters to play with and little time to find the truth, before its mutated citizens abruptly end your mission. Daymare: 1998 is a zombies, survival horror and action game developed by Invader Studios and published by Destructive Creations and All in! Games. Released on September 17th 2019 has received 3,924 reviews of which 2,725 were positive and 1,199 were negative resulting in a rating of 6.8 out of 10. Featuring a massive 99% discount, this game currently holds the #1 spot in the best deals for games like The Callisto Protocol™.
6.8
2,725
1,199
-99%
29.99€
0.43€
2. Amnesia: The Bunker
Similarity 40% Amnesia: The Bunker is a first-person horror game set in a WW1 bunker. A relentless, AI-driven monster stalks you. Survival depends on finding tools, crafting items, and keeping the lights on. Amnesia: The Bunker is a horror, survival horror and atmospheric game developed and published by Frictional Games. Released on June 06th 2023 has received 9,094 reviews of which 8,501 were positive and 593 were negative resulting in an impressive rating of 9.1 out of 10. Thanks to its incredible 98% discount, this game is now the #2 best deal in games like The Callisto Protocol™.
9.1
8,501
593
-98%
24.50€
0.60€
3. Tormented Souls
Similarity 52% 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 6,089 reviews of which 5,544 were positive and 545 were negative resulting in a rating of 8.8 out of 10. Thanks to its incredible 98% discount, this game is now the #3 best deal in games like The Callisto Protocol™.
8.8
5,544
545
-98%
19.99€
0.46€
4. Lamentum
Similarity 41% Lamentum is a pixel art survival horror game, set in New England in the mid-nineteenth century. Lamentum is a survival horror, blood and exploration game developed by Obscure Tales and published by Neon Doctrine. Released on August 27th 2021 has received 726 reviews of which 643 were positive and 83 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #4 position in the best deals for games like The Callisto Protocol™.
8.3
643
83
-98%
15.99€
0.41€
5. The Beast Inside
Similarity 40% The Beast Inside is a unique, gripping twist on thriller and survival horror. Immerse in the story of long-buried secrets, personal tragedies, and madness. Play as two protagonists bounded by dark heritage. Combat the enemies, solve riddles and experience real terror in the 3D-scanned environment. The Beast Inside is a horror, adventure and first-person game developed and published by Illusion Ray. Released on October 17th 2019 has received 11,355 reviews of which 9,414 were positive and 1,941 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 98% discount, this title has earned the #5 position in the best deals for games like The Callisto Protocol™.
8.1
9,414
1,941
-98%
24.50€
0.62€
6. Them and Us
Similarity 54% 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 1,399 reviews of which 1,066 were positive and 333 were negative resulting in a rating of 7.3 out of 10. Currently offered at a significant 98% discount, this title has earned the #6 position in the best deals for games like The Callisto Protocol™.
7.3
1,066
333
-98%
33.99€
0.79€
7. War Tech Fighters
Similarity 54% War Tech Fighters - the space action game that combines the spectacular action of Japanese Anime with Hollywood Blockbusters. Configure, upgrade and customize your War Tech and dive into battle to fight back the Zatronian forces and save your galaxy! War Tech Fighters is a action, mechs and shooter game developed by Drakkar Dev and published by Green Man Gaming Publishing. Released on July 25th 2018 has received 335 reviews of which 258 were positive and 77 were negative resulting in a rating of 7.2 out of 10. Currently offered at a significant 98% discount, this title has earned the #7 position in the best deals for games like The Callisto Protocol™.
7.2
258
77
-98%
19.99€
0.58€
8. Freedom Fighters
Similarity 40% Freedom Fighters is an intense third-person action game set in an alternate history New York during the invasion of a foreign superpower. Take on the role of Chris Stone, a hard-working plumber, and rise through the ranks of the resistance to prove yourself as a charismatic leader. Freedom Fighters is a action, third-person shooter and shooter game developed and published by IO Interactive A/S. Released on September 21st 2020 has received 2,126 reviews of which 2,012 were positive and 114 were negative resulting in an impressive rating of 9.0 out of 10. Currently offered at a significant 97% discount, this title has earned the #8 position in the best deals for games like The Callisto Protocol™.
9.0
2,012
114
-97%
15.33€
0.46€
9. Binary Domain
Similarity 53% Set in futuristic Tokyo, take control of the robotic community before they control everything! Binary Domain is a action, third-person shooter and sci-fi game developed by Devil's Details and published by SEGA. Released on April 26th 2012 has received 7,701 reviews of which 6,594 were positive and 1,107 were negative resulting in a rating of 8.3 out of 10. Currently offered at a significant 97% discount, this title has earned the #9 position in the best deals for games like The Callisto Protocol™.
8.3
6,594
1,107
-97%
14.99€
0.53€
10. Observation
Similarity 42% Observation is a sci-fi thriller uncovering what happened to Dr. Emma Fisher, and the crew of her mission, through the lens of the station’s artificial intelligence S.A.M. Observation is a indie, adventure and sci-fi game developed by No Code and published by Devolver Digital. Released on May 21st 2020 has received 4,773 reviews of which 3,743 were positive and 1,030 were negative resulting in a rating of 7.6 out of 10. Currently offered at a significant 97% discount, this title has earned the #10 position in the best deals for games like The Callisto Protocol™.
7.6
3,743
1,030
-97%
24.50€
0.89€
Free games like The Callisto Protocol™ on Steam
Check out this fantastic list of free-to-play games like The Callisto Protocol™ you can enjoy on Steam right now, updated on June 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like The Callisto Protocol™.
1. Dead Frontier 2
Similarity 40% Survival horror MMO. As one of the few survivors of the outbreak, you must scratch a living out of the decaying ruins of society. Scavenge for supplies, improve your skills, and trade with other players. All the while, keeping your eyes peeled for the infected lurking around every corner. Dead Frontier 2 is a free to play, multiplayer and survival horror game developed and published by Creaky Corpse Ltd. Released on July 15th 2019 has received 26,801 reviews of which 18,844 were positive and 7,957 were negative resulting in a rating of 6.9 out of 10. With 536 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like The Callisto Protocol™.
6.9
18,844
7,957
536
players
2. M.A.R.S.
Similarity 45% MARS is a Free-To-Play Third Person Shooter set in an evolving sci-fi world. From the hilarious Headhunter mode, to Huge Mecha vs Mecha battles, to fully customizable loadouts; whether Co-op or PvP, M.A.R.S. has something for everyone. Kill, Die, Repeat. M.A.R.S. is a third-person shooter, pve and pvp game developed by Yingpei Games and published by SubaGames. Released on October 28th 2021 has received 1,090 reviews of which 687 were positive and 403 were negative resulting in a rating of 6.1 out of 10. The game currently holds the #2 spot among the most played free games like The Callisto Protocol™.
6.1
687
403
29
players
3. Dead Seater
Similarity 47% Explore the halls and travel deeper into the Vincent estate, but beware what lurks there. Father is coming home. Dead Seater is a action, horror and adventure game developed and published by Zeekerss. Released on April 02nd 2021 has received 715 reviews of which 656 were positive and 59 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #3 spot among the most played free games like The Callisto Protocol™.
8.6
656
59
3
players
4. Cover Fire: Offline Shooting Game
Similarity 44% Best Offline Shooter and Sniper Game. Warning it's addictive Cover Fire: Offline Shooting Game is a on-rails shooter, hero shooter and pve game developed and published by 1MB. Released on November 04th 2021 has received 353 reviews of which 255 were positive and 98 were negative resulting in a rating of 6.8 out of 10. The game currently holds the #4 spot among the most played free games like The Callisto Protocol™.
6.8
255
98
1
players
5. Puppet Master: The Game
Similarity 43% This free-to-play online multiplayer game celebrates the series' 30-year legacy. Revisit iconic locations, select from a large roster of playable characters from the movies, and play a variety of online multiplayer game modes, each inspired by the Puppet’s many adventures. Puppet Master: The Game is a action, shooter and fps game developed by October Games and published by October Games and Full Moon Features. Released on May 03rd 2024 has received 1,265 reviews of which 1,101 were positive and 164 were negative resulting in a rating of 8.3 out of 10. The game currently holds the #5 spot among the most played free games like The Callisto Protocol™.
8.3
1,101
164
6. A Night In Berlin
Similarity 41% A Night in Berlin is a narrative-driven third-person shooter featuring brutal fast-paced gameplay in a dark and atmospheric world. A Night In Berlin is a third-person shooter, shooter and third person game developed by Unlimina Software and published by Bad Smile Media. Released on August 07th 2020 has received 484 reviews of which 409 were positive and 75 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #6 spot among the most played free games like The Callisto Protocol™.
7.9
409
75
7. Age of Water: The First Voyage
Similarity 40% Embark on your first adventure on a post-apocalyptic Earth completely covered in water. Sail through storms, fight and trade, capture other people's boats or build your own, extract resources from the bottom of the ocean, reveal the secrets of the Age of Water world. Age of Water: The First Voyage is a action, adventure and action-adventure game developed by Three Whales Studio and published by Gaijin Network Ltd. Released on March 21st 2024 has received 1,143 reviews of which 884 were positive and 259 were negative resulting in a rating of 7.4 out of 10. The game currently holds the #7 spot among the most played free games like The Callisto Protocol™.
7.4
884
259