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

PALINGENESIS
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Adventure and Casual with G-ASTRO.
A music-driven puzzle adventure where sound shapes the world. Solve mysteries, escape the Human Wheel, and experience the album by GRIGS in PALINGENESIS.
- 2

VITATIO 3
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Casual with G-ASTRO.
VITATIO 3 brings a new take on the precision game genre, traverse your physics based ship through the asteroid belt in this infinite running score based avoidance game, upgrade your ship, unlock new paint jobs and customize your cockpit
- 3

Babol the Walking Box
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Adventure with G-ASTRO.
Begin your adventure with your new friends! Babol the Walking Box Yes, it's game about Box that can walk, nope, just kidding hahaha UwU Explore the amazing world of box, from the wilderness, desert, to super duper cold snowy mountains!
- 4

The Smurfs – Dreams
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Adventure with G-ASTRO.
The fate of the Smurf Village rests in your dreams: dive into a fantastic journey to save it in this fully immersive and magical 3D platformer!
- 5

Earth Must Die
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Adventure with G-ASTRO.
These moronic Terranoids think they can just roll in here and take over my beautiful Tyrythian kingdom? The kingdom that I built from the ground up with my bare hands, and only sort of inherited from my dear, sweet, extremely dead father? This is complete bullsh*t, and I'm going to make them dead.
- 6

Tad the Lost Explorer
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Adventure and Casual with G-ASTRO.
Your favourite explorer, Tad Stones is back! Embark with Tad and his friends on a new journey through different cities where you will encounter challenging puzzles in your quest to get the emerald tablet.
- 7

Hellboy Web of Wyrd
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Adventure with G-ASTRO.
Hellboy Web of Wyrd is a roguelike action brawler with an original story created in partnership with Dark Horse Comics and Hellboy creator Mike Mignola. When an agent of the B.P.R.D. goes missing, Hellboy is sent to investigate; pulling him into the depths of the Wyrd.
- 8

Asterix & Obelix - Mission Babylon
Single-player alternative to G-ASTRO — playable solo, no multiplayer required. Shares Adventure with G-ASTRO.
Dive into an epic and brand-new adventure with Asterix & Obelix! Experience a story full of humour, epic battles and unforgettable encounters in a thrilling platform game!