Games like The Citadel on Steam
For those who prefer not to search, lists of the most played, top deals and best free games like The Citadel are available at the bottom of the page.
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Ion Fury
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, are excited to team up with Voidpoint to bring back the legendary Build Engine, famously known for classic first-person shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Ion Fury is the real deal!
Warhammer 40,000: Boltgun
Load up your Boltgun and unleash the awesome Space Marine arsenal to blast your way through an explosion of sprites, pixels and blood in a perfect blend of Warhammer 40,000, frenetic gameplay and the stylish visuals of 90’s retro shooters.
The Apogee Throwback Pack
The Apogee Throwback Pack is a collection of four classic Apogee Software titles all in one kick ass package. Blast your way across the galaxy as British Special Agent Blake Stone in "Aliens of Gold" and "Planet Strike", then take on an ancient evil menace as the H.U.N.T in "Rise of the Triad".
DOOM + DOOM II
Developed by id Software, and originally released in 1993 and 1994, the definitive, newly enhanced versions of DOOM + DOOM II are available as a combined product.
Chasm: The Rift
Prepare for terror in this ground-breaking classic old-school FPS. Following the destruction of Time you are left to battle in this horrific hellhole of multilevel interconnected missions populated by gruesome grotesque creatures.
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.
DOOM 64
Play the enhanced version of the original game released on the Nintendo 64 in 1997. Years have passed since you stopped Hell’s invasion of Earth. Quarantined for humanity’s safety, the UAC research facilities on Mars were abandoned and forgotten...until now.
PAPERHEAD EP.0
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?
Perilous Warp
Perilous Warp is a fast-paced indie retro-shooter inspired by the classic 3D-actions. Communication with a distant space colony has been lost, and you bravely step into the teleporter with the desire for glorious adventures. But do not expect to win in a heartbeat!
Maximum Action
MAXIMUM Action is a brutal and satisfying physics-based first person shooter influenced by Hong Kong cinema, heroic slow motion bloodshed, and old-school FPS ACTION.
CULTIC
Death is only the beginning. Crawl from your grave and gear up to fight your way through the ranks of a mysterious and twisted cult. You, your guns, and your dynamite will have to shoot, slide, blast, duck, dodge, and maybe throw a gib or two to survive in this old-school-inspired shooter.
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.
Dread Templar
Dread Templar is a fast-paced hardcore old-school FPS, combining classic 90s shooter and modern FPS elements. Unlock and combine dozens of weapon upgrades and skills, embrace the Dread Force and obliterate hordes of fiendish enemies. Become the scariest thing in hell and get your revenge!
WRATH: Aeon of Ruin
Blast, slice and shred through your enemies in this hardcore FPS inspired by the icons of the '90s, powered by the legendary Quake-1 Tech. Taking place in a realm left to rot, take up arms, unearth long-forgotten secrets and hunt down the Guardians of the Old World.
CARNAL
CARNAL is a fast and challenging retro FPS straight from the mid '90s. The Sons of Anak are opening portals to extract Dark Matter from the "other side". Combat the possessed soldiers, the manifested demons helping them, and any inanimate objects standing in your way!
Hard Reset Extended Edition
Over-the-top destruction, loads of enemies & a beautifully realized cyberpunk setting. Hard Reset is here to shake up the shooter scene. Try the demo now.
Phantom Fury
Shelly “Bombshell” Harrison is back in this highly interactive mix of first person action and road movie adventure. Embark on an adrenaline-fueled journey around the USA. Use an enormous arsenal of weapons and skills to battle treacherous soldiers and vile mutants, all while trying to save mankind.
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.
Zortch
Meet Zortch Maxinum: short order cook, amateur engineer and professional slacker; Bored and tired of her day job she decides to go on a holiday but alas she picks a cheap option: turns out it's a scheme by aliens who capture humans to eat their brains! also this game is a sci-fi horror comedy fps
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.
Turbo Overkill
Enter Paradise as Johnny Turbo—half-metal, half-human, all-murder machine. Clean up the streets with a chainsaw leg, 15+ weapons and your hovercar as you battle the rogue AI Syn, rival bounty hunters and cyberpunks aplenty. Apogee’s most outrageous FPS since Duke Nukem 3D. Good hunting, Sir!Most played games like The Citadel on Steam
Take a look at the top games like The Citadel that are currently attracting the largest player bases on the Steam platform, as of April 15th 2025.
1. Hell Let Loose
Similarity 52% Join the ever expanding experience of Hell Let Loose - a hardcore World War Two first person shooter with epic battles of 100 players with infantry, tanks, artillery, a dynamically shifting front line and a unique resource based RTS-inspired meta-game. Hell Let Loose is a shooter, realistic and world war ii game developed and published by Team17. Released on July 27th 2021 has received 136,525 reviews of which 112,491 were positive and 24,034 were negative resulting in a rating of 8.2 out of 10. The game has hit the top spot as the #1 most played game like The Citadel, thanks to its 6,332 peak concurrent players over the last day.
8.2
112,491
24,034
6,332
players
2. Easy Red 2
Similarity 56% Fight massive battles between infantry, armored vehicles, tanks, cannons and planes. Realistically manage your weapons and equipment, coordinate with your squad, and tactically navigate large, fully destructible open world maps. Experience the WW2 in singleplayer, PVP and Co-Op. Easy Red 2 is a world war ii, action and singleplayer game developed by Marco Amadei and published by Corvostudio di Amadei Marco. Released on January 06th 2022 has received 7,403 reviews of which 6,728 were positive and 675 were negative resulting in a rating of 8.8 out of 10. While seeing 3,105 players online at once in the last 24 hours, this game is currently ranked #2 among games like The Citadel based on player count.
8.8
6,728
675
3,105
players
3. DOOM Eternal
Similarity 52% 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 202,451 reviews of which 184,508 were positive and 17,943 were negative resulting in an impressive rating of 9.0 out of 10. While seeing 2,163 players online at once in the last 24 hours, this game is currently ranked #3 among games like The Citadel based on player count.
9.0
184,508
17,943
2,163
players
4. DOOM
Similarity 52% Now includes all three premium DLC packs (Unto the Evil, Hell Followed, and Bloodfall), maps, modes, and weapons, as well as all feature updates including Arcade Mode, Photo Mode, and the latest Update 6.66, which brings further multiplayer improvements as well as revamps multiplayer progression. DOOM is a fps, gore and action game developed by id Software and published by Bethesda Softworks. Released on May 12th 2016 has received 203,253 reviews of which 194,089 were positive and 9,164 were negative resulting in an impressive rating of 9.4 out of 10. With 2,022 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played games like The Citadel.
9.4
194,089
9,164
2,022
players
5. Half-Life
Similarity 58% Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world. Half-Life is a fps, classic and 1990's game developed and published by Valve. Released on November 19th 1998 has received 146,723 reviews of which 141,651 were positive and 5,072 were negative resulting in an impressive rating of 9.5 out of 10. With 980 concurrent players in the last 24 hours, the game currently holds the #5 spot among the most played games like The Citadel.
9.5
141,651
5,072
980
players
6. Black Mesa
Similarity 53% Relive Half-Life. Black Mesa is a fps, remake and action game developed and published by Crowbar Collective. Released on March 06th 2020 has received 124,102 reviews of which 118,226 were positive and 5,876 were negative resulting in an impressive rating of 9.4 out of 10. With 742 concurrent players in the last 24 hours, the game currently holds the #6 spot among the most played games like The Citadel.
9.4
118,226
5,876
742
players
7. RoboCop: Rogue City
Similarity 52% Become the legendary part man, part machine, all cop hero and deliver justice in Old Detroit. RoboCop: Rogue City is a fps, action and first-person game developed by Teyon and published by Nacon. Released on November 02nd 2023 has received 20,381 reviews of which 18,166 were positive and 2,215 were negative resulting in a rating of 8.7 out of 10. With 741 concurrent players in the last 24 hours, the game currently holds the #7 spot among the most played games like The Citadel.
8.7
18,166
2,215
741
players
8. Borderlands Game of the Year Enhanced
Similarity 52% Discover the original co-op shooter-looter, crammed with new enhancements! As one of 4 trigger-happy mercenaries with RPG progression, equip bazillions of guns to take on the desert planet Pandora. Borderlands Game of the Year Enhanced is a fps, co-op and shooter game developed by Gearbox Software and Blind Squirrel Games and published by 2K. Released on August 31st 2023 has received 23,272 reviews of which 19,956 were positive and 3,316 were negative resulting in a rating of 8.4 out of 10. With 724 concurrent players in the last 24 hours, the game currently holds the #8 spot among the most played games like The Citadel.
8.4
19,956
3,316
724
players
9. Hotline Miami 2: Wrong Number
Similarity 56% Hotline Miami 2: Wrong Number is the brutal conclusion to the Hotline Miami saga, set against a backdrop of escalating violence and retribution over spilled blood in the original game. Hotline Miami 2: Wrong Number is a great soundtrack, gore and pixel graphics game developed by Dennaton Games and published by Devolver Digital. Released on March 10th 2015 has received 65,466 reviews of which 61,602 were positive and 3,864 were negative resulting in an impressive rating of 9.3 out of 10. With 624 concurrent players in the last 24 hours, the game currently holds the #9 spot among the most played games like The Citadel.
9.3
61,602
3,864
624
players
10. Wolfenstein II: The New Colossus
Similarity 52% America, 1961. The assassination of Nazi General Deathshead was a short-lived victory. The Nazis maintain their stranglehold on the world. You are BJ Blazkowicz, aka “Terror-Billy,” member of the Resistance, scourge of the Nazi empire, and humanity’s last hope for liberty. Wolfenstein II: The New Colossus is a fps, action and gore game developed by Machine Games and published by Bethesda Softworks. Released on October 26th 2017 has received 44,029 reviews of which 35,645 were positive and 8,384 were negative resulting in a rating of 8.0 out of 10. With 487 concurrent players in the last 24 hours, the game currently holds the #10 spot among the most played games like The Citadel.
8.0
35,645
8,384
487
players
Best deals on games like The Citadel on Steam
Discover fantastic savings with the best discounts on a variety of games like The Citadel available on Steam right now, updated on April 15th 2025. Looking for even more deals? Use the search filters to explore a wider range of discounted games like The Citadel.
1. Outlast 2
Similarity 50% 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 54,959 reviews of which 50,192 were positive and 4,767 were negative resulting in a rating of 9.0 out of 10. Featuring a massive 96% discount, this game currently holds the #1 spot in the best deals for games like The Citadel.
9.0
50,192
4,767
-96%
32.50€
1.30€
2. Prodeus
Similarity 69% 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 The Citadel.
9
6,913
523
-95%
25.00€
1.25€
3. The Hong Kong Massacre
Similarity 55% Blast your way through the streets of Hong Kong in a fast-paced, top-down shooter. Inspired by classic action movies, The Hong Kong Massacre places you at the center of a hard-boiled revenge story, filled with brutal, cinematic shootouts and vivid underworld locations. The Hong Kong Massacre is a action, bullet time and violent game developed by VRESKI and published by Untold Tales. Released on January 21st 2019 has received 1,637 reviews of which 1,218 were positive and 419 were negative resulting in a rating of 7.2 out of 10. Thanks to its incredible 93% discount, this game is now the #3 best deal in games like The Citadel.
7.2
1,218
419
-93%
19.14€
1.34€
4. Serious Sam 3: BFE
Similarity 58% Serious Sam 3: BFE is a prequel to the original indie fast action FPS and Game of the Year sensation - Serious Sam: The First Encounter! Serious Sam 3: BFE is a fps, action and co-op game developed by Croteam and published by Devolver Digital. Released on November 22nd 2011 has received 27,625 reviews of which 24,414 were positive and 3,211 were negative resulting in a rating of 8.7 out of 10. Currently offered at a significant 91% discount, this title has earned the #4 position in the best deals for games like The Citadel.
8.7
24,414
3,211
-91%
29.22€
2.63€
5. Fobia - St. Dinfna Hotel
Similarity 55% Explore a decadent hotel across different timelines and uncover the dark history of a fanatical cult and your role in their plans. Fobia - St. Dinfna Hotel is a indie, survival horror and violent game developed by Pulsatrix Studios and published by Maximum Entertainment. Released on June 28th 2022 has received 1,899 reviews of which 1,627 were positive and 272 were negative resulting in a rating of 8.2 out of 10. Currently offered at a significant 91% discount, this title has earned the #5 position in the best deals for games like The Citadel.
8.2
1,627
272
-91%
26.00€
2.34€
6. Dread Templar
Similarity 71% Dread Templar is a fast-paced hardcore old-school FPS, combining classic 90s shooter and modern FPS elements. Unlock and combine dozens of weapon upgrades and skills, embrace the Dread Force and obliterate hordes of fiendish enemies. Become the scariest thing in hell and get your revenge! Dread Templar is a boomer shooter, fps and retro game developed by T19 Games and published by Fulqrum Publishing. Released on January 26th 2023 has received 1,479 reviews of which 1,238 were positive and 241 were negative resulting in a rating of 8 out of 10. Currently offered at a significant 90% discount, this title has earned the #6 position in the best deals for games like The Citadel.
8
1,238
241
-90%
19.30€
1.93€
7. WRATH: Aeon of Ruin
Similarity 71% Blast, slice and shred through your enemies in this hardcore FPS inspired by the icons of the '90s, powered by the legendary Quake-1 Tech. Taking place in a realm left to rot, take up arms, unearth long-forgotten secrets and hunt down the Guardians of the Old World. WRATH: Aeon of Ruin is a action, boomer shooter and fps game developed by KillPixel Games and Slipgate Ironworks and published by 3D Realms and Fulqrum Publishing. Released on February 27th 2024 has received 2,582 reviews of which 1,918 were positive and 664 were negative resulting in a rating of 7.2 out of 10. Currently offered at a significant 90% discount, this title has earned the #7 position in the best deals for games like The Citadel.
7.2
1,918
664
-90%
25.50€
2.55€
8. Hotline Miami 2: Wrong Number
Similarity 56% Hotline Miami 2: Wrong Number is the brutal conclusion to the Hotline Miami saga, set against a backdrop of escalating violence and retribution over spilled blood in the original game. Hotline Miami 2: Wrong Number is a great soundtrack, gore and pixel graphics game developed by Dennaton Games and published by Devolver Digital. Released on March 10th 2015 has received 65,466 reviews of which 61,602 were positive and 3,864 were negative resulting in an impressive rating of 9.3 out of 10. Currently offered at a significant 89% discount, this title has earned the #8 position in the best deals for games like The Citadel.
9.3
61,602
3,864
-89%
14.82€
1.63€
9. Day of Infamy
Similarity 52% Experience close-quarters battles in iconic WWII settings. Defend the line, storm the beach, torch the enemy, or use a radio to call in fire support. Day of Infamy is a teamwork-oriented shooter that will keep you on your toes and coming back for more with its diverse game modes and authentic arsenal. Day of Infamy is a world war ii, fps and multiplayer game developed and published by New World Interactive. Released on March 23rd 2017 has received 22,061 reviews of which 18,187 were positive and 3,874 were negative resulting in a rating of 8.1 out of 10. Currently offered at a significant 89% discount, this title has earned the #9 position in the best deals for games like The Citadel.
8.1
18,187
3,874
-89%
12.64€
1.39€
10. Scorn
Similarity 54% Scorn is an atmospheric first-person horror adventure game set in a nightmarish universe of odd forms and somber tapestry. Scorn is a gore, horror and atmospheric game developed by Ebb Software and published by Kepler Interactive. Released on October 14th 2022 has received 15,177 reviews of which 11,627 were positive and 3,550 were negative resulting in a rating of 7.5 out of 10. Currently offered at a significant 89% discount, this title has earned the #10 position in the best deals for games like The Citadel.
7.5
11,627
3,550
-89%
40.45€
4.45€
Free games like The Citadel on Steam
Check out this fantastic list of free-to-play games like The Citadel you can enjoy on Steam right now, updated on April 15th 2025. Looking for even more free titles? Use the search filters to explore a wider range of free to play games like The Citadel.
1. STRAFTAT
Similarity 61% STRAFTAT video game ::::::::::::::::::::: 1v1 ONLINE first person pov SHOOTER ::::::::::::::: quick rounds in 100 MAPS ::::::::::::: Including all WEAPONS and proximity chat STRAFTAT is a action, shooter and fps game developed by Sirius Lemaitre and Leonard Lemaitre and published by Lemaitre Bros. Released on October 24th 2024 has received 6,072 reviews of which 5,860 were positive and 212 were negative resulting in an impressive rating of 9.3 out of 10. With 416 active players enjoying it for free, this strategy game has reached the #1 spot among the top free games like The Citadel.
9.3
5,860
212
416
players
2. PAPERHEAD EP.0
Similarity 75% 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 1,443 reviews of which 1,347 were positive and 96 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #2 spot among the most played free games like The Citadel.
8.9
1,347
96
66
players
3. Propagation VR
Similarity 52% Combining survival horror and static wave shooting, Propagation VR will get your adrenaline pumping as you try to survive a zombie apocalypse. Armed only with your guns and your fists, fight off terrifying zombies and other multi-species mutants. Will you get out alive? Propagation VR is a vr, action and horror game developed and published by WanadevStudio. Released on September 25th 2020 has received 5,587 reviews of which 5,269 were positive and 318 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 The Citadel.
9.1
5,269
318
55
players
4. Quake II RTX
Similarity 60% Quake II RTX is a cutting-edge, ray-traced reimagining of id software’s old school classic, by NVIDIA’s Lightspeed Studios. Global lighting effects, including realistic reflections, refraction, shadows, ambient occlusion and global illumination are a result of the path-traced simulation of light. Quake II RTX is a free to play, action and fps game developed by Lightspeed Studios™ and published by NVIDIA. Released on June 06th 2019 has received 4,555 reviews of which 3,982 were positive and 573 were negative resulting in a rating of 8.5 out of 10. The game currently holds the #4 spot among the most played free games like The Citadel.
8.5
3,982
573
15
players
5. AQtion
Similarity 59% Get ready for intense, skill-based FPS action with AQtion! Featuring the best of Action Quake 2, enjoy fast-paced combat, realistic weapons, and thrilling multiplayer battles. Dominate the arena now on Steam! AQtion is a free to play, old school and action game developed by AQ2World Team, TNG Team and A-Team (Akimbo) and published by AQ2World Team. Released on June 01st 2022 has received 414 reviews of which 328 were positive and 86 were negative resulting in a rating of 7.5 out of 10. The game currently holds the #5 spot among the most played free games like The Citadel.
7.5
328
86
7
players
6. A.W.O.L.
Similarity 55% A.W.O.L. is a first-person, mil-spec shooter developed using the Build engine (Duke Nukem 3D, Ion Fury). A.W.O.L. is a fps, action and shooter game developed and published by Shotspark Studios. Released on September 15th 2022 has received 1,029 reviews of which 822 were positive and 207 were negative resulting in a rating of 7.6 out of 10. The game currently holds the #6 spot among the most played free games like The Citadel.
7.6
822
207
4
players
7. Shrine
Similarity 58% Shrine is a retro FPS game about a skinless dude killing eldritch monstrosities with his nightmarish arsenal. Shrine is a action, fps and retro game developed and published by Scumhead. Released on April 03rd 2020 has received 872 reviews of which 801 were positive and 71 were negative resulting in a rating of 8.6 out of 10. The game currently holds the #7 spot among the most played free games like The Citadel.
8.6
801
71
3
players
8. Shrine II
Similarity 64% Shrine II is a retro FPS game with a focus on atmosphere and exploration. Explore a nightmarish world and battle great bosses where the surprises never end... Shrine II is a action, fps and shooter game developed by Scumhead and Mengo and published by Scumhead. Released on September 22nd 2020 has received 827 reviews of which 765 were positive and 62 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 The Citadel.
8.7
765
62
2
players
9. GUN GODZ
Similarity 55% GUN GODZ is a first person shooter about gun, gangster rap and the rich culture of Venus. Players try to escape the jail of a hotel, which is the only building on Venus and is owned by a record-label owner who happens to be the God of Guns. GUN GODZ is a action, indie and violent game developed and published by Vlambeer. Released on December 08th 2019 has received 704 reviews of which 617 were positive and 87 were negative resulting in a rating of 8.2 out of 10. The game currently holds the #9 spot among the most played free games like The Citadel.
8.2
617
87
2
players
10. CAYNE
Similarity 56% Hadley wakes in a facility. She is 9 months pregnant. They want her baby... CAYNE is the FREE, isometric horror game from the creators of STASIS. CAYNE is a free to play, adventure and point & click game developed and published by THE BROTHERHOOD. Released on January 24th 2017 has received 1,820 reviews of which 1,468 were positive and 352 were negative resulting in a rating of 7.8 out of 10. The game currently holds the #10 spot among the most played free games like The Citadel.
7.8
1,468
352
2
players