Single-player games like Starboost EX
Below are 8 single-player Steam games similar to Starboost EX, 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 Starboost EX page.
Ranked picks
- 1

Silverwing
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Indie with Starboost EX.
Silverwing is an action flight game where you build an array of powerful spaceships to combat enemies across space and a diverse array of planet landscapes. Play through a fully voiced 20+ mission campaign with multiple endings based on your mission choices.
- 2

Strike Suit Zero
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Indie with Starboost EX.
Pilot the mecha Strike Suit across massive fleet battles where your dogfighting skills decide Earth's fate. Fast, frantic space combat with capital ship destruction, multiple endings, and a universe that's anything but empty. This is space combat reborn.
- 3

Chorus
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Adventure with Starboost EX.
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.
- 4

Hell Division
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Indie with Starboost EX.
Hell Division is a game from the 3rd person, which is a battle of combat drones.
- 5

Dark Void™
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Adventure with Starboost EX.
Dark Void™ is a sci-fi action-adventure game that combines an adrenaline-fueled blend of aerial and ground-pounding combat.
- 6

Strike Vector
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Indie with Starboost EX.
"Strike Vector is gorgeous shooter with strong mechanics and lots of customisation" 7.7/10 – IGN"it more than makes up for by being a gorgeous, intensely competitive experience that matches its aesthetic appeal with pure shooter satisfaction"– 7.
- 7

Everreach: Project Eden
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Indie with Starboost EX.
Take on the role of Nora Harwood, member of Everreach’s Security Division, on a mission to secure the colonization process of Eden and investigate mysterious incidents! Everreach: Project Eden is a fast-paced, story-driven action-RPG set on the visually stunning Planet Eden.
- 8

Dead Space
Single-player alternative to Starboost EX — playable solo, no multiplayer required. Shares Action and Adventure with Starboost EX.
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.