Games like The Citadel on Steam

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DOOM Eternal: The Ancient Gods - Part One The Ancient Gods – Part One is the first campaign expansion for the critically acclaimed DOOM Eternal.

Similarity 56%
Price -59% 8.23€
Rating 6.6
Release 20 Oct 2020
STAR WARS™ Dark Forces (Classic, 1995) Behind a veil of secrecy the evil Empire is creating a doomsday army - one that, if finished, will become the final cog in the Empire's arsenal of terror and domination. Your Mission? Join the Rebel Alliance's covert operations division, infiltrate the Empire.

Similarity 55%
Price 5.89€
Rating 8.6
Release 16 Sep 2009
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.

Similarity 55%
Price 9.99€
Rating 9.4
Release 03 Aug 2007
Putrefaction 2: Void Walker Putrefaction 2: Void Walker is fast-paced, hardcore, arcade FPS, inspired by old-school shooters.

Similarity 55%
Price -66% 1.71€
Rating 7.4
Release 29 May 2017
Quake Developed by the award-winning id Software, Quake® is the ground-breaking, original dark fantasy first-person shooter that inspires today’s retro-style FPS games. With Quake (Enhanced), experience the authentic, updated, and visually enhanced version of the original.

Similarity 55%
Price -75% 2.59€
Rating 9.4
Release 03 Aug 2007
Corpse Party: Blood Drive Set two months after Corpse Party: Book of Shadows, Corpse Party: Blood Drive is the definitive conclusion to the long-running Heavenly Host story arc. Featuring dynamic lighting, 3D sound, detailed environments, and new gameplay systems, this is a Japanese horror experience not to be missed!

Similarity 55%
Price -60% 7.99€
Rating 7.2
Release 10 Oct 2019
STRAFE: Gold Edition STRAFE® is the worlds bloodiest roguelike first-person shooter! Featuring mind melting secrets and persistent gore that allows you to paint levels red with the excessive entrails of your enemies. 30+ weapons, 20+ enemies, & a red hot soundtrack.

Similarity 54%
Price -75% 3.76€
Rating 7.0
Release 09 May 2017
PERISH PERISH is a stylish 1-4 player FPS with a cross to bear. Slay hordes of creatures on the black sands of Purgatory and sell their gold-stained corpses to craven priests. Kill magnificent bosses and use the proceeds to gain entrance to Elysium, a place of cosmic revelations.

Similarity 54%
Price -84% 3.22€
Rating 6.9
Release 02 Feb 2023
INCISION All old-school FPS action. No Bullshit. Lots of blood & gore. Slaughter your way through nightmarish industrial mazes, transformed cityscapes and surreal alien structures to cut down the Growth in this ultraviolent, fast-paced, and merciless retro-styled first person shooter.

Similarity 54%
Price -94% 0.86€
Rating 8.5
Release 28 Aug 2025
The Darkness II An intense first person shooter that delivers a twisted and gripping narrative of tragedy, modern crime drama, and supernatural horror.

Similarity 54%
Price -97% 1.09€
Rating 9.0
Release 09 Feb 2012
Fida Puti Samurai A Retro-FPS "virtual happy place", jeopardized with a naughty bug. Traverse this action-oriented roguelite blasting waifus to uncover dirty secrets on a personal computer!

Similarity 54%
Price 11.79€
Rating 8.6
Release 21 Mar 2024
The spy who shot me™ The spy who shot me™ is a comedy retro FPS inspired by classic shooters of the 90s.

Similarity 53%
Price -47% 4.79€
Rating 7.6
Release 29 Jan 2019
Red Eclipse Building on over 15 years of gameplay design, Red Eclipse continues to focus on fast paced, agile, easily accessible first person shooter gameplay. For creators, the full power of the Tesseract engine is at your fingertips in the included realtime multiplayer editor.

Similarity 53%
Price Free to play
Rating 8.1
Release 19 Dec 2019
Shadow Warrior Classic (1997) Strap on your combat sandals...Lo Wang is coming to the Land of the Rising Sun to turn out the lights. Experience total blood immersion. If you can't touch, kill or drive something...then blow it away! Whether you're wielding shurikens, an Uzi, or a freshly plundered Guardian head...you've got your work cut out for you.

Similarity 53%
Price Free to play
Rating 8.8
Release
DUSK Battle through an onslaught of mystical backwater cultists, possessed militants & even darker forces as you attempt to discover just what lurks beneath the Earth in this retro FPS inspired by the '90s legends.

Similarity 53%
Price -96% 0.83€
Rating 9.5
Release 10 Dec 2018
Serious Sam Classics: Revolution Serious Sam is a high-adrenaline arcade-action shooter heavily focused on frantic action. In a world where cyberpunk meets fantasy-fiction and advanced technology is mixed with black magic and psycho-powers, Sam travels through four beautiful worlds, confronting countless foes on his way to Mental's base.

Similarity 53%
Price -91% 0.94€
Rating 8.7
Release 30 Aug 2019
Serious Sam 4 Serious Sam 4 reignites the classic FPS series in a high-powered prequel loaded with an explosive arsenal, intergalactic carnage, and perfectly timed one-liners.

Similarity 53%
Price -89% 4.48€
Rating 8.2
Release 24 Sep 2020
360 No Scope Arena 360 No Scope Arena is an online multiplayer shooter with a twist: you have to spin around before you can shoot your gun. Every kill is a "360 No Scope" in this arena. Every shot is a trick shot. This game rewards pure aiming skill above all else.

Similarity 53%
Price 0.99€
Rating 8.4
Release 06 Sep 2018
DOOM 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.

Similarity 53%
Price -89% 2.20€
Rating 9.4
Release 12 May 2016
Shadow Warrior Shadow Warrior is a bold reimagining of the classic 3D Realms’ shooter from independent developer Flying Wild Hog (Hard Reset) starring the legendary and quick-witted warrior Lo Wang.

Similarity 53%
Price -97% 1.07€
Rating 9.0
Release 26 Sep 2013
DOOM Eternal 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.

Similarity 52%
Price -90% 4.09€
Rating 9.0
Release 19 Mar 2020
Project Warlock Project Warlock is a first-person shooter that fans of Doom, Hexen, and Wolfenstein cannot miss. It serves you an exploding cocktail of bullets, spells, and monsters. Battle through 60 levels of non-stop action, packed with bloodthirsty enemies and challenging bosses.

Similarity 52%
Price -90% 1.10€
Rating 8.4
Release 06 Dec 2018
Kingpin — Life of Crime Kingpin is a tale of revenge. Take control of a street gang and order your recruits to attack, defend or even do a little safe-cracking to pick up some needed cash. Use that cash to buy nastier weapons and take down your punk enemies in this intense first-person shooter. Being the Kingpin is half attitude and all action.

Similarity 52%
Price 19.50€
Rating 7.5
Release 19 Aug 2009
Wrought Flesh Rip out organs and equip them in your own body. Fight biopunk monsters and drugged-up space bandits. You are a Gajeshian Cultist: A near-mythological being built from the bodies of long-dead saints.

Similarity 52%
Price 16.79€
Rating 7.2
Release 10 Dec 2021
RoboCop: Rogue City Become the legendary part man, part machine, all cop hero and deliver justice in Old Detroit.

Similarity 52%
Price -95% 2.39€
Rating 8.7
Release 02 Nov 2023
Super Cyborg Super Cyborg is an old school non-stop hardcore run'n'gun action game! You are an elite battle cyborg who is sent in to investigate a series of anomalies on a mysterious island. The merciless alien known as the 'Xirxul life form' has been awakened by unwitting scientists and now: all humanity is in danger!

Similarity 52%
Price -10% 4.50€
Rating 8.1
Release 08 Jul 2015
Shrine II 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...

Similarity 52%
Price Free to play
Rating 8.7
Release 22 Sep 2020
Quake 4 As part of the elite Rhino Squad, you must spearhead Earth’s military invasion of a hostile alien homeworld. But, in this desperate war for humanity’s survival against an unrelenting enemy, you may discover that the only way to defeat them...is to become one of them.

Similarity 52%
Price -93% 1.16€
Rating 8.4
Release 04 Aug 2011
RoboCop: Rogue City - Unfinished Business Unfinished Business is a new standalone adventure of RoboCop: Rogue City. OmniTower is their fortress, violence their language. Face elite mercenaries all the way to the top of the tower and enforce the law amidst the chaos!

Similarity 52%
Price 29.99€
Rating 8.2
Release 17 Jul 2025
NecroVisioN: Lost Company NecroVisioN: Lost Company is the prequel to original horror FPS shooter, taking place before the NecroVisioN story begins. It contains a bunch of unique levels, characters, weapons and gameplay elements as well as new main hero that presents the original game story from opposite perspective.

Similarity 52%
Price -91% 0.69€
Rating 6.8
Release 19 Feb 2010
Serious Sam HD: The First Encounter Serious Sam HD: The First Encounter is a visually upgraded and fully Steam supported remake version of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS which was Gamespot's Game of the Year 2001 and which scored overall of 87% on Metacritic!

Similarity 52%
Price -86% 2.21€
Rating 9.1
Release 24 Nov 2009
Serious Sam Classic: The First Encounter Serious Sam is a high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Year 2001!

Similarity 51%
Price -80% 1.17€
Rating 9.2
Release 30 Aug 2019
Selaco Selaco is a brand new original shooter inspired by classics, featuring thrilling action set pieces, destructibility, smart enemies and a fleshed out story taking place within an immersive game world.

Similarity 51%
Price -74% 6.57€
Rating 8.9
Release 31 May 2024
Quake II RTX 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.

Similarity 51%
Price Free to play
Rating 8.4
Release 06 Jun 2019
Supplice Supplice is a stylish throwback shooter inspired by the mid-90s FPS glory days and the legendary Doom modding community. Mixing the retro stylings of 90s era shooters with colorful graphics and frantic gameplay, it creates an experience that's ever so familiar but also exciting and fresh.

Similarity 51%
Price -51% 7.28€
Rating 8.1
Release 06 Apr 2023
AQtion 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!

Similarity 50%
Price Free to play
Rating 7.4
Release 01 Jun 2022