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

Hextones
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Indie and Casual with Astra Ignota.
Connect the Hextones by color or symbol and jump light-years in the Spacetime to be the great cosmic explorer. A challenging matchup puzzle game with a sci-fi mood.
- 2

Starlight X-2: Space Sudoku
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Indie and Casual with Astra Ignota.
Starlight X-2 is a space-themed puzzle game. Position stars and asteroids in clever ways to illuminate planets.
- 3

The Answer Is 42
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Indie and Casual with Astra Ignota.
The answer to life, the universe, and everything. Connect the numbers. Fill the board. You will find out.
- 4

Hextones: Spacetime
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Casual with Astra Ignota.
Connect the Hextones and jump through Spacetime! An even more challenging matchup puzzle with time mechanics. Explore three new Hexgrids through three game modes, including a Hardcore for those with a strong heart and a Relax mode with cool music!> Play also with Tilt Five™
- 5

Starshapes
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Indie and Casual with Astra Ignota.
Shapes become stars become constellations. Connect them all.
- 6

Liquidum
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Indie and Casual with Astra Ignota.
Liquidum is an aquatic logic puzzle game, where you strategically fill interconnected aquariums across six challenging sections with unique mechanics.
- 7

Zenbones
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Indie and Casual with Astra Ignota.
A pure version of the traditional tile-matching game. No added flavours.
- 8

Sudoku Minimalist Infinite
Single-player alternative to Astra Ignota — playable solo, no multiplayer required. Shares Indie and Casual with Astra Ignota.
Classic Sudoku distraction-free. Just you and the game.