Single-player games like Deunocta
Below are 8 single-player Steam games similar to Deunocta, 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 Deunocta page.
Ranked picks
- 1
Devil's Desk
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action and Indie with Deunocta.
Bring down devilish corporate overlords in this Office-Core Retro FPS. Use office supplies (and much more) to slay your way through and escape hellish work spaces. Dismantle the Devil's workforce of twisted salary men, corrupted custodians, and possessed office sundries! Time to get that promotion
- 2
Ion Fury
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action and Indie with Deunocta.
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!
- 3
The Fortress of Dr. Radiaki - Fancy Edition
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action with Deunocta.
Experience the cult hit that doesn't quit, Dr. Radiaki is here to tickle your funny bone until it really hurts. An unapologetic sense of fun and non-stop action meets in an unforgettably bizarre adventure!
- 4
CTRLSINK
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action and Indie with Deunocta.
A submerged post-apocalyptic retro-style FPS set in a world swallowed by the ocean after a human/AI war. Blast through flooded facilities, battle corrupted machines, explore radioactive ruins, and uncover the last buried secrets of humanity’s collapse.
- 5
Project Warlock II
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action and Indie with Deunocta.
Adrenaline-pumping gore retro funhouse that’s full of guns, magic, demons, vertical arenas, 3D visuals, 2D sprites, and heavy metal music. Inspired by FPS classics like Quake and Doom 64, Project Warlock II is the explosive boomer shooter sequel you were too shy to ask for.
- 6
Warhammer 40,000: Boltgun
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action and Indie with Deunocta.
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.
- 7
SPRAWL
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action and Indie with Deunocta.
SPRAWL is a hardcore retro FPS set in an endless cyberpunk megalopolis. Escape the walled city and take on the militarized government of the sprawl. Fueled by the blood of your enemies and a mysterious voice in your head, make your way towards the spire to topple whatever lays within.
- 8
Hellbound
Single-player alternative to Deunocta — playable solo, no multiplayer required. Shares Action and Indie with Deunocta.
Classic First Person Shooter style game. Like the good old days. An action game focused on speed, gore, guns, and metal music. Inspired by the 90s’ classics with modern visuals and audio!