Single-player games like Orange Cast: Sci-Fi Space Action Game
Below are 13 single-player Steam games similar to Orange Cast: Sci-Fi Space Action Game, 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 Orange Cast: Sci-Fi Space Action Game page.
Ranked picks
- 1

Dead Space (2008)
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
You are Isaac Clarke, an engineer on the spacecraft USG Ishimura. You're not a warrior. You're not a soldier. You are, however, the last line of defense for the remaining living crew.
- 2

Marvel's Guardians of the Galaxy
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
Fire up a wild ride across the cosmos with a fresh take on Marvel’s Guardians of the Galaxy. In this action-adventure game, you are Star-Lord leading the unpredictable Guardians from one explosion of chaos to the next. You got this. Probably.
- 3

Mass Effect 2 (2010) Edition
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required.
Are you prepared to lose everything to save the galaxy? You'll need to be, Commander Shepard. It's time to bring together your greatest allies and recruit the galaxy's fighting elite to continue the resistance against the invading Reapers.
- 4

Alien Breed: Impact
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action with Orange Cast: Sci-Fi Space Action Game.
Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.
- 5

Star Control®: Origins
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
Star Control is a space role-playing game in which you command Earth's first interstellar starship on a mission to save the Earth from hostile alien empires.
- 6

Halo: Campaign Evolved
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
Halo: Campaign Evolved is a faithful yet modernized remake of Halo: Combat Evolved’s campaign, rebuilt from the ground up.
- 7

Starcom: Unknown Space
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
Starcom: Unknown Space is an action RPG of space exploration and adventure. Build your own starship while discovering an epic story in a universe of strange mysteries, alien factions and uncharted worlds.
- 8

Chorus
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
Take control of Nara on a quest to destroy the dark cult that created her. Unlock devastating weapons & mind-bending abilities in an evolution of the space-combat shooter. Along with Forsaken, her sentient starfighter, explore ancient temples, engage in zero-g combat & venture beyond waking reality.
- 9

Warframe
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action with Orange Cast: Sci-Fi Space Action Game.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
- 10

Into The Matrix
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
"Into The Matrix" is a multiplayer horror game where you and your friends must explore, survive, and outsmart dangers . Many entities are after you, but the Overseer is the true threat. Can you escape its grasp?
- 11

Dark Sector
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action with Orange Cast: Sci-Fi Space Action Game.
A third-person Action/Shooter that thrusts players into a sci-fi flavored nightmare scenario set in the post Cold War era.
- 12

Dead Space
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
The sci-fi survival-horror classic returns, completely rebuilt to offer an even more immersive experience — including visual, audio, and gameplay improvements — while staying faithful to the original game’s thrilling vision.
- 13

Orange Cast: Prologue
Single-player alternative to Orange Cast: Sci-Fi Space Action Game — playable solo, no multiplayer required. Shares Action and Adventure with Orange Cast: Sci-Fi Space Action Game.
Prologue to Orange Cast, an atmospheric adventure in a large-scale setting where Soviet and Western science fiction are combined itself. As a humanity’s elite space trooper, you take on a heroic, action-packed adventure throughout the galaxy.