Single-player games like Beyond Citadel
Below are 15 single-player Steam games similar to Beyond Citadel, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Beyond Citadel page.
Ranked picks
- 1
HEADCUTTER
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action with Beyond Citadel.
HEADCUTTER is a sci-fi spaghetti western FPS with brutal combat, destructible environments, and lots of gore. Track targets as a space bounty hunter, explore maps with multiple routes, and use the crunchy gunplay to cut their heads off so you can get your money!
- 2
The Citadel
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond 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.
- 3
Ultra Cop
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
A challenging retro arcade FPS/TPS straight from the late '90s. The Crime Wars have started and it's up to the Ultra Cops to bring back ultimate justice. Use Mechs, Riot Cars and serious firepower to bring the pain to the criminal underworld in this 6th Generation Y2K inspired game.
- 4
Ion Fury
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
3D Realms, creators of Duke Nukem 3D, Prey, and Max Payne, team up with Voidpoint to bring back the legendary Build Engine, famous for classic shooters like Duke Nukem 3D, Shadow Warrior, and Blood. Fast-paced FPS combat across huge, secret-packed levels. Ion Fury is the real deal!
- 5
Pile 'Em High Episode 3: Convalescence
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
Deep in Colorado’s Rocky Mountains, a secluded estate becomes ground zero for terror. Pile ’Em High 3 throws you into nonstop action‑horror mayhem—cultists, zombies, abominations—all standing between you and the truth behind the world‑shattering Pandemic
- 6
HAZAMA_QUEEN
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
In the year 202X, the world is "YAMI"...! To save the world, go to hell and kill all the demons. Yes, just like ordering a Frappuccino at a cool cafe!
- 7
MULLET MADJACK
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
MULLET MADJACK is a HIGH-OCTANE-ACTION SHOOTER that put you directly inside a CLASSIC ANIME. Pick your favorite weapon and reach the last floor; Beat your best time or try again. Haste makes waste… OF YOUR ENEMIES!
- 8
Turbo Overkill
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
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!
- 9
Quake
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action with Beyond Citadel.
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.
- 10
Wolfenstein: The New Order
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action with Beyond Citadel.
Wolfenstein®: The New Order reignites the series that created the first-person shooter genre. Wolfenstein offers a deep game narrative packed with action, adventure and first-person combat.
- 11
SOMA
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
From the creators of Amnesia: The Dark Descent comes SOMA, a sci-fi horror game set below the waves of the Atlantic ocean. Struggle to survive a hostile world that will make you question your very existence.
- 12
Titanfall - The Final Hours
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action with Beyond Citadel.
Written over the past four years, journalist Geoff Keighley ("The Final Hours of Portal 2") chronicles the making of TITANFALL from Respawn Entertainment. This longform app features never-before-seen photos, video and concept art from early development versions of the game.
- 13
Receiver 2
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
Receiver 2 simulates every internal part of each firearm based on manufacturer schematics and gunsmithing resources. Learn exactly how each sidearm works, including how to load and unload them, clear malfunctions, and operate their safety features.
- 14
ULTRAKILL
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
ULTRAKILL is a fast-paced ultra-violent retro FPS that combines the skill-based style scoring of character action games with the unadulterated carnage inspired by the best shooters of the '90s. Rip apart your foes with varied destructive weaponry and shower in their blood to regain your health.
- 15
SIGNALIS
Single-player alternative to Beyond Citadel — playable solo, no multiplayer required. Shares Action and Indie with Beyond Citadel.
A classic survival horror experience set in a dystopian future where humanity has uncovered a dark secret. Unravel a cosmic mystery, escape terrifying creatures, and scavenge an off-world government facility as Elster, a technician Replika searching for her lost dreams.