Single-player games like Sideral
Below are 10 single-player Steam games similar to Sideral, 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 Sideral page.
Ranked picks
- 1

Escape Simulator 2
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
Sequel to the best-selling escape room game, brings a fresh take on first-person puzzles with a variety of new rooms to explore solo or with friends. Solve intricate puzzles, uncover hidden secrets, or craft your own escape rooms with Room Editor 2.0.
- 2

Riven
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
Uncover a story of intrigue, betrayal, and a civilization teetering on the brink of collapse as you solve intricate puzzles to unlock the secrets of Riven. Built from the ground-up and expanded from the award-winning original game released in 1997.
- 3

Lightmatter
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
A first-person puzzler where shadows kill you. Watch your step or be swallowed by the darkness.
- 4

Ether One
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
Ether One is a first person adventure that deals with the fragility of the human mind. There are two paths in the world you can choose from. At its core is a story exploration path free from puzzles where you can unfold the story at your own pace.
- 5

The Last Cube
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
Cube puzzler and an epic adventure. Stamp stickers to the sides of your cube to imbue each surface with unique powers, which are vital to solving puzzles and finding secrets.
- 6

Call of the Sea
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
Join Norah, a woman plagued by a mysterious illness, in her search for her missing husband in this adventure puzzle game set on a lush island paradise. Immerse yourself in stunning visuals and unlock forbidden secrets in a moving tale of mystery and love.
- 7

The Pedestrian
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
I can see the signs in my sleep now, always guiding me closer. Will this really work? Have we almost achieved the impossible?
- 8

The Sojourn
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
The Sojourn is a first-person puzzle game set in an immersive colour-drenched world of light and darkness. Think your way through dozens of puzzles as you traverse parallel worlds, awaken mysterious artifacts and overcome challenging obstacles on an unforgettable journey.
- 9

Crafting Tycoon
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie with Sideral.
THE ROAD DESIGN-CRAFTING-TYCOON GAME !!
- 10

Sea Explorer
Single-player alternative to Sideral — playable solo, no multiplayer required. Shares Indie and Adventure with Sideral.
Sea explorer is a single player adventure with upgrade/RPG elements about exploration of a big blue sea...