Games like Protocol on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like Protocol are available at the bottom of the page.
Filters & Lists
Among the Sleep - Enhanced Edition
Among the Sleep: Enhanced Edition is a new and improved version of the award winning first person horror adventure. In the game you play as a small child trapped in a weird nightmare where you go looking for your mom.
Miasmata
Miasmata is a first-person survival/adventure game, developed from the ground-up by brothers Joe and Bob Johnson. You play as Robert Hughes, a plague-stricken scientist on a journey to discover a cure. Your adventure begins on the shores of a remote and mysterious island.
Fallout: New Vegas
Welcome to Vegas. New Vegas. Enjoy your stay!
Fallout 3: Game of the Year Edition
Prepare for the Future™ With Fallout 3: Game of the Year Edition, experience the most acclaimed game of 2008 like never before. Create a character of your choosing and descend into an awe-inspiring, post-apocalyptic world where every minute is a fight for survival.
Fallout 3
Vault-Tec engineers have worked around the clock on an interactive reproduction of Wasteland life for you to enjoy from the comfort of your own vault. Included is an expansive world, unique combat, shockingly realistic visuals, tons of player choice, and an incredible cast of dynamic characters.
Peaks of Yore
Travel around The Great Gales to climb challenging peaks in this physics-based climbing adventure set in 1887. Meet like-minded mountaineers, unlock helpful climbing gear, and become a pioneer of mountaineering.
The Stanley Parable: Ultra Deluxe
The Stanley Parable: Ultra Deluxe is an expanded re-imagining of 2013's The Stanley Parable. You will play as Stanley, and you will not play as Stanley. You will make a choice, and you will become powerless. You are not here to win. The Stanley Parable is a game that plays you.
Beneath a Steel Sky (1994)
After being abducted by brutal soldiers and his kinfolk butchered, Robert Foster finds himself in Union City - a vast metropolis under the tyranny of a fascist AI. Alone, save for the circuit board of his best friend, Foster must discover the sinister truth - and why they specifically came for him.
Bears In Space
Unleash your inner bear in this over-the-top bullet-hell FPS! Embark on a zany retro-futuristic adventure and destroy oil-thirsty robots with an outrageous arsenal. Transform into a bear, wield unique powers, and embrace the absurd fast-paced action of Bears in Space!![[Chilla's Art] Stigmatized Property | 事故物件](https://shared.cloudflare.steamstatic.com/store_item_assets/steam/apps/1162680/header.jpg)
[Chilla's Art] Stigmatized Property | 事故物件
Stigmatized Property, 事故物件 (Jiko bukken) is a horror game inspired by haunted apartment rooms in Japan. These properties are known to have cheap rents and you play to find out the exact reason why.
Trans-Siberian Railway Simulator
Get behind the controls of a classic Russian locomotive and see if wild animals, bad people, strong frosts and a constantly breaking locomotive is able to stop you. Try to survive on the longest railway line in the world!
Operencia: The Stolen Sun
Operencia: The Stolen Sun embraces everything you love about classic first-person dungeon-crawlers, enhancing the old-school turn-based RPG experience with modern sensibilities. Guide a team of memorable characters through a world inspired by Central European mythology.
303 Squadron: Battle of Britain
The enemies are close, would you dare to join the Squadron? Tweak planes in a 1st person mechanic mode, set the clouds on fire in aerial fights sim and discover extra missions in an open world of RAF Base. Enjoy a gameplay based on a real history and become the Ace of Sky.
Seven: Enhanced Edition
Seven: Enhanced Edition is an open-world, isometric stealth and action role-playing game, in which you play as Teriel, a master thief sent on a mission that will shake the foundations of the Vetrall Empire. Includes the Drowned Past expansion.
Half-Life: A Place in the West
In a devastated America, sinister commandos are kidnapping children and taking them to a hidden city with a mysterious cosmic tower at its heart – a tower that may prove to be humanity’s salvation, or its doom. Join three survivors in this fan-made comic as they attempt to unlock the city’s secrets.
Dark Deception
Death awaits you in Dark Deception, a story-driven first-person horror maze game. There's nowhere to hide & nowhere to catch your breath. Run or die - it's your choice. Trapped in a realm of nightmarish mazes with a mysterious woman, your only hope of survival is to find a way to escape.
We Happy Few
From the independent studio that brought you Contrast, We Happy Few is an action/adventure game set in a drug-fuelled, retrofuturistic city in an alternative 1960s England. Hide, fight and conform your way out of this delusional, Joy-obsessed world.
DeadCore
DeadCore is a Platformer-FPS blending exploration and speedrun. Become immersed in a futuristic and dreamlike adventure which will see you climb a huge Tower born from the void and truly put your capabilities to the test. Will you be able to reveal the secrets that lie beneath this fog-ridden world?
Star Control®: Origins
Star Control is a space role-playing game in which you command Earth's first interstellar starship on a mission to save the Earth from hostile alien empires.
Receiver
Receiver was created for the 7-day FPS challenge to explore gun handling mechanics, randomized levels, and unordered storytelling. Armed only with a handgun and an audio cassette player, you must uncover the secrets of the Mindkill in a building complex infested with automated turrets and hovering shock drones.
Serious Sam HD: The Second Encounter
Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!
Natural Selection 2
A fast paced multiplayer shooter that pits aliens against humans in a strategic and action-packed struggle for survival!Most played games like Protocol on Steam
Take a look at the top games like Protocol that are currently attracting the largest player bases on the Steam platform, as of April 30th 2025.
1. Cyberpunk 2077
Similarity 62% Cyberpunk 2077 is an open-world, action-adventure RPG set in the dark future of Night City — a dangerous megalopolis obsessed with power, glamor, and ceaseless body modification. Cyberpunk 2077 is a cyberpunk and open world game developed and published by CD PROJEKT RED. Released on December 09th 2020 has received 834,940 reviews of which 703,079 were positive and 131,861 were negative resulting in a rating of 8.4 out of 10. The game has hit the top spot as the #1 most played game like Protocol, thanks to its 16,687 peak concurrent players over the last day.
8.4
703,079
131,861
16,687
players
2. Fallout 4
Similarity 53% Bethesda Game Studios, the award-winning creators of Fallout 3 and The Elder Scrolls V: Skyrim, welcome you to the world of Fallout 4 – their most ambitious game ever, and the next generation of open-world gaming. Fallout 4 is a open world, post-apocalyptic and singleplayer game developed by Bethesda Game Studios and published by Bethesda Softworks. Released on November 09th 2015 has received 390,364 reviews of which 324,290 were positive and 66,074 were negative resulting in a rating of 8.2 out of 10. While seeing 11,693 players online at once in the last 24 hours, this game is currently ranked #2 among games like Protocol based on player count.
8.2
324,290
66,074
11,693
players
3. No Man's Sky
Similarity 59% No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe. No Man's Sky is a open world, open world survival craft and space game developed and published by Hello Games. Released on August 12th 2016 has received 350,242 reviews of which 290,801 were positive and 59,441 were negative resulting in a rating of 8.2 out of 10. While seeing 5,653 players online at once in the last 24 hours, this game is currently ranked #3 among games like Protocol based on player count.
8.2
290,801
59,441
5,653
players
4. Halo: The Master Chief Collection
Similarity 55% 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. With 4,638 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like Protocol.
9.1
222,169
18,284
4,638
players
5. Fallout: New Vegas
Similarity 53% Welcome to Vegas. New Vegas. Enjoy your stay! Fallout: New Vegas is a open world, rpg and post-apocalyptic game developed by Obsidian Entertainment and published by Bethesda Softworks. Released on October 21st 2010 has received 226,078 reviews of which 217,239 were positive and 8,839 were negative resulting in an impressive rating of 9.5 out of 10. With 4,253 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like Protocol.
9.5
217,239
8,839
4,253
players
6. Subnautica
Similarity 62% Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive. Subnautica is a open world survival craft, survival and horror game developed and published by Unknown Worlds Entertainment. Released on January 23rd 2018 has received 310,872 reviews of which 301,651 were positive and 9,221 were negative resulting in an impressive rating of 9.6 out of 10. With 2,589 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like Protocol.
9.6
301,651
9,221
2,589
players
7. Halo Infinite
Similarity 55% 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 176,400 reviews of which 123,072 were positive and 53,328 were negative resulting in a rating of 6.9 out of 10. With 2,398 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like Protocol.
6.9
123,072
53,328
2,398
players
8. 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 #8 spot among the most played games like Protocol.
9.3
272,876
18,252
2,341
players
9. DOOM Eternal
Similarity 53% 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 Protocol.
9.0
185,114
17,989
1,470
players
10. Portal 2
Similarity 53% The "Perpetual Testing Initiative" has been expanded to allow you to design co-op puzzles for you and your friends! Portal 2 is a platformer, puzzle and first-person game developed and published by Valve. Released on April 18th 2011 has received 430,909 reviews of which 425,266 were positive and 5,643 were negative resulting in an impressive rating of 9.8 out of 10. With 1,250 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like Protocol.
9.8
425,266
5,643
1,250
players
Best deals on games like Protocol on Steam
Discover fantastic savings with the best discounts on a variety of games like Protocol 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 Protocol.
1. Prodeus
Similarity 54% 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. Featuring a massive 95% discount, this game currently holds the #1 spot in the best deals for games like Protocol.
9
6,947
526
-95%
25.00€
1.25€
2. Outlast 2
Similarity 56% Outlast 2 introduces you to Sullivan Knoth and his followers, who left our wicked world behind to give birth to Temple Gate, a town, deep in the wilderness and hidden from civilization. Knoth and his flock are preparing for the tribulations of the end of times and you’re right in the thick of it. Outlast 2 is a horror, psychological horror and survival horror game developed and published by Red Barrels. Released on April 24th 2017 has received 55,116 reviews of which 50,337 were positive and 4,779 were negative resulting in a rating of 9.0 out of 10. Thanks to its incredible 94% discount, this game is now the #2 best deal in games like Protocol.
9.0
50,337
4,779
-94%
30.67€
1.84€
3. Maid of Sker
Similarity 57% Maid of Sker is a first-person survival horror, set in a remote hotel with a gory and macabre history from Welsh folklore. Brave the nightmares of the Quiet Ones. Do not panic…don’t even breathe! Maid of Sker is a horror, adventure and action game developed and published by Wales Interactive. Released on July 28th 2020 has received 2,177 reviews of which 1,718 were positive and 459 were negative resulting in a rating of 7.6 out of 10. Thanks to its incredible 94% discount, this game is now the #3 best deal in games like Protocol.
7.6
1,718
459
-94%
23.67€
1.42€
4. A Juggler's Tale
Similarity 53% Lead Abby the string puppet through a bruised, but beautiful fairy tale world in this cinematic adventure. Solve riddles, evade traps and shake off pursuers on the way to find freedom. Can Abby take control of her fate with all the strings attached? A Juggler's Tale is a atmospheric, fantasy and story rich game developed by kaleidoscube and published by Assemble Entertainment. Released on September 29th 2021 has received 1,778 reviews of which 1,643 were positive and 135 were negative resulting in a rating of 8.8 out of 10. Currently offered at a significant 93% discount, this title has earned the #4 position in the best deals for games like Protocol.
8.8
1,643
135
-93%
14.29€
1.00€
5. Ad Infinitum
Similarity 57% When reality is a nightmare, nightmares become real. In this psychological horror game, you fight the terrifying creatures invading your mind. Can you save your sanity? Ad Infinitum is a horror, action and psychological horror game developed by Hekate and published by Nacon. Released on September 14th 2023 has received 870 reviews of which 702 were positive and 168 were negative resulting in a rating of 7.7 out of 10. Currently offered at a significant 93% discount, this title has earned the #5 position in the best deals for games like Protocol.
7.7
702
168
-93%
32.71€
2.29€
6. INDUSTRIA
Similarity 58% 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 #6 position in the best deals for games like Protocol.
6.9
2,273
927
-93%
20.29€
1.42€
7. Marvel's Guardians of the Galaxy
Similarity 55% Fire up a wild ride across the cosmos with a fresh take on Marvel’s Guardians of the Galaxy. In this action-adventure game, you are Star-Lord leading the unpredictable Guardians from one explosion of chaos to the next. You got this. Probably. Marvel's Guardians of the Galaxy is a singleplayer, story rich and action game developed by Eidos-Montréal and published by Eidos Interactive Corp.. Released on October 26th 2021 has received 38,718 reviews of which 36,453 were positive and 2,265 were negative resulting in an impressive rating of 9.2 out of 10. Currently offered at a significant 92% discount, this title has earned the #7 position in the best deals for games like Protocol.
9.2
36,453
2,265
-92%
62.38€
4.99€
8. Ghost of a Tale
Similarity 53% Ghost of a Tale is an action-RPG game in which you play as Tilo, a mouse and minstrel thrown into a perilous adventure. Through stealth and cunning you’ll be able to explore the secrets of Dwindling Heights Keep and navigate its dangers. Ghost of a Tale is a adventure, stealth and atmospheric game developed and published by SeithCG. Released on March 13th 2018 has received 4,873 reviews of which 4,471 were positive and 402 were negative resulting in a rating of 8.9 out of 10. Currently offered at a significant 92% discount, this title has earned the #8 position in the best deals for games like Protocol.
8.9
4,471
402
-92%
18.75€
1.50€
9. Seven: Enhanced Edition
Similarity 53% Seven: Enhanced Edition is an open-world, isometric stealth and action role-playing game, in which you play as Teriel, a master thief sent on a mission that will shake the foundations of the Vetrall Empire. Includes the Drowned Past expansion. Seven: Enhanced Edition is a action rpg, stealth and isometric game developed by IMGN.PRO and Fool's Theory and published by IMGN.PRO. Released on December 01st 2017 has received 1,996 reviews of which 1,524 were positive and 472 were negative resulting in a rating of 7.4 out of 10. Currently offered at a significant 92% discount, this title has earned the #9 position in the best deals for games like Protocol.
7.4
1,524
472
-92%
30.75€
2.46€
10. Necromunda: Hired Gun
Similarity 54% Become a Hired Gun. The money’s good, the dog’s loyal, and the gun’s reliable. Embark on a fast-paced, violent, and thrilling FPS set in the darkest reaches of Warhammer 40,000’s most infamous hive city. Necromunda: Hired Gun is a action, warhammer 40k and adventure game developed by Streum On Studio and published by Focus Entertainment. Released on May 31st 2021 has received 7,369 reviews of which 4,844 were positive and 2,525 were negative resulting in a rating of 6.5 out of 10. Currently offered at a significant 92% discount, this title has earned the #10 position in the best deals for games like Protocol.
6.5
4,844
2,525
-92%
39.50€
3.16€
Free games like Protocol on Steam
Check out this fantastic list of free-to-play games like Protocol 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 Protocol.
1. Halo Infinite
Similarity 55% 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 176,400 reviews of which 123,072 were positive and 53,328 were negative resulting in a rating of 6.9 out of 10. With 2,398 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like Protocol.
6.9
123,072
53,328
2,398
players
2. Dark Deception
Similarity 53% Death awaits you in Dark Deception, a story-driven first-person horror maze game. There's nowhere to hide & nowhere to catch your breath. Run or die - it's your choice. Trapped in a realm of nightmarish mazes with a mysterious woman, your only hope of survival is to find a way to escape. Dark Deception is a horror, free to play and multiplayer game developed and published by Glowstick Entertainment. Released on September 26th 2018 has received 20,999 reviews of which 18,680 were positive and 2,319 were negative resulting in a rating of 8.7 out of 10. The game currently holds the #2 spot among the most played free games like Protocol.
8.7
18,680
2,319
58
players
3. Spooky's Jump Scare Mansion
Similarity 57% Can you survive 1000 rooms of cute terror? Or will you break once the cuteness starts to fade off and you're running for your life from the unspeakable hideous beings that shake and writhe in bowels of this house? They wait for you, they wait and hunger for meeting you. Spooky's Jump Scare Mansion is a horror, free to play and cute game developed and published by Lag Studios. Released on July 28th 2015 has received 14,970 reviews of which 13,899 were positive and 1,071 were negative resulting in an impressive rating of 9.1 out of 10. The game currently holds the #3 spot among the most played free games like Protocol.
9.1
13,899
1,071
12
players
4. Bendy: Secrets of the Machine
Similarity 53% Some things are better left forgotten. Bendy: Secrets of the Machine is a adventure, indie and horror game developed by Gent Corporation and published by Joey Drew Studios. Released on April 14th 2024 has received 1,887 reviews of which 1,587 were positive and 300 were negative resulting in a rating of 8.1 out of 10. The game currently holds the #4 spot among the most played free games like Protocol.
8.1
1,587
300
7
players
5. the static speaks my name
Similarity 52% A dark/sad/weird/funny first person exploration game. You play a man on his last night alive as he obsesses over a mysterious painting. More of a story game in that it emphasizes mood and character over gameplay. Takes ten minutes to play and has "next-gen" features like a shrimp tank. the static speaks my name is a free to play, psychological horror and indie game developed and published by the whale husband. Released on August 10th 2015 has received 5,618 reviews of which 4,584 were positive and 1,034 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #5 spot among the most played free games like Protocol.
7.9
4,584
1,034
7
players
6. Transmissions: Element 120
Similarity 55% TE120 is a short single player experience set in the Half-Life Universe featuring a gravity defying weapon that allows you to jump buildings and sustain large falls. The story takes place at a mysterious date & location. Where are you? Why have you been sent? Transmissions: Element 120 is a free to play, action and shooter game developed by Shokunin, Thomas M. Visser and Vincent Thiele and published by Self published. Released on June 16th 2016 has received 9,786 reviews of which 9,248 were positive and 538 were negative resulting in an impressive rating of 9.2 out of 10. The game currently holds the #6 spot among the most played free games like Protocol.
9.2
9,248
538
4
players
7. Star Fetchers
Similarity 58% The introduction to a wild ride with gangsters and deep state conspiracy theories Star Fetchers is a indie, action and free to play game developed and published by Svavelstickan. Released on January 17th 2020 has received 7,122 reviews of which 6,928 were positive and 194 were negative resulting in an impressive rating of 9.4 out of 10. The game currently holds the #7 spot among the most played free games like Protocol.
9.4
6,928
194
3
players
8. The Desolate Hope
Similarity 57% On a distant edge of an unknown planet, an abandoned structure sits in silence. Constructed by an unmanned research vessel sent from Earth, the Lun Infinus station was designed to run simulations for a five year period, exploring possibilities of human colonization in the case that Earth became uninhabitable. The Desolate Hope is a rpg, adventure and free to play game developed and published by Scott Cawthon. Released on May 05th 2014 has received 1,620 reviews of which 1,489 were positive and 131 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 Protocol.
8.7
1,489
131
3
players
9. Beneath a Steel Sky (1994)
Similarity 53% After being abducted by brutal soldiers and his kinfolk butchered, Robert Foster finds himself in Union City - a vast metropolis under the tyranny of a fascist AI. Alone, save for the circuit board of his best friend, Foster must discover the sinister truth - and why they specifically came for him. Beneath a Steel Sky (1994) is a adventure, free to play and point & click game developed and published by Revolution Software Ltd. Released on July 27th 2020 has received 488 reviews of which 439 were positive and 49 were negative resulting in a rating of 8.4 out of 10. The game currently holds the #9 spot among the most played free games like Protocol.
8.4
439
49
3
players
10. Swallow the Sea
Similarity 52% You are a lowly egg cell on a journey through a swollen sea of strange and humanoid fish. Prey on smaller life and growing larger and stronger to perhaps someday be born. Swallow the Sea is a action, free to play and adventure game developed by Talia bob Mair and Nicolás Delgado and published by ItsTheTalia. Released on September 03rd 2021 has received 2,278 reviews of which 2,223 were positive and 55 were negative resulting in an impressive rating of 9.3 out of 10. The game currently holds the #10 spot among the most played free games like Protocol.
9.3
2,223
55
1
players