Single-player games like CASTILLO: The Nine Circles
Below are 10 single-player Steam games similar to CASTILLO: The Nine Circles, 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 CASTILLO: The Nine Circles page.
Ranked picks
- 1
CASTILLO: Shattered Mirrors
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
Castillo Shattered Mirrors is a Gothic FPS and Collectathon. Battle legions of the undead in your quest to defeat Dracula with an arsenal of mythical weaponry. Enter dimensional gates through Dracula's castle and decide which worlds to enter, shards to collect, and bosses to defeat.
- 2
Monument
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
Oldschool FPS. Hardcore classic gameplay action. Huge hordes of monsters. Blood. Horror. Fun. Each level is unique and not similar to the previous. You need to survive in this dangerous world and become the best evil shooter.
- 3
CROSSBOW: Bloodnight
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action with CASTILLO: The Nine Circles.
CROSSBOW: Bloodnight is a frantic score-attack arena shooter set in a world of camp horror and gore. Master the occult powers of your automatic crossbow and fight for every second of survival against a relentless demonic horde! Hunt. Die. Hunt again.
- 4
Hellbound
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
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!
- 5
Devilated
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
Devilated is an ultraviolent RPG old-school shooter where you brutalize and cannibalize your demonic foes in equal measure. Eat their face before they eat yours.
- 6
Turbo Overkill
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
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!
- 7
Warhammer 40,000: Boltgun
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
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.
- 8
Project Warlock
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
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.
- 9
Flying Frags World Tour
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action with CASTILLO: The Nine Circles.
Robots have torn open a portal to invade earth, everyone has mysteriously disappeared, the world has begun to tear apart. Sprint across the skies of robot-invaded Earth as you try to end the invasion.
- 10
HYPERJUSTICE
Single-player alternative to CASTILLO: The Nine Circles — playable solo, no multiplayer required. Shares Action and Indie with CASTILLO: The Nine Circles.
Sprint through neon-stained Miami as you battle the mob and try to prevent the distribution of a world-ending drug. HyperJustice is a fast-paced third-person shooter inspired by 1980’s cop movies and television.