Single-player games like PLANET ALPHA
Below are 11 single-player Steam games similar to PLANET ALPHA, 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 PLANET ALPHA page.
Ranked picks
- 1
Cosmos: Stella Returns
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
Cosmos: Stella Returns is a metroidvania that will bring you to the mysterious planet of Memoria. Shoot, jump, collect materials and new items in this action-platform with a vintage flavor!
- 2
Outpost Delta
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
Outpost Delta is a single player, 2-D side-scrolling sci-fi shooter for PC. Take on the role of Delta, the outpost’s emergency defense, who along with her AI companion must defend the space station against alien intruders.
- 3
Black Demeter
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
Black Demeter is an open-world sci-fi action-adventure set on a planet in constant twilight and mystery. Turn movement into a weapon, earn the locals’ trust, or burn it all down.
- 4
Dimensions
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
An Action-Platformer inspired by Mega Man 2, Dimensions has the player fight crazy bosses, collect and upgrade weapons, and find secrets. Players will take control of a sprite from the 2D universe to save the 3rd dimension universe.
- 5
Bloopy & Droopy
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
A Game Boy style 8-bit platformer, giving you an old-school experience in which you can switch characters at any time and use your digging skills to make your way through the terrain!
- 6
Pogo Rocket
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
Pogo sticks and Rockets, how could it go wrong? In this space-themed 2D platformer, you control an experimental rocket ship and must stop aliens from taking the Earth's resources. Play through a variety of levels with dangerous obstacles and save the world!
- 7
Cube Crusaders
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
Adoros is dying. A catastrophic Void Anomaly has torn open the planet’s surface, warping reality and unleashing forces no one fully understands. You are a Cube Crusader sent to crush the Anomaly, at any cost.
- 8
Exploaris: Vermis story
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
The main character of the game, Arisa, because of the breakdowns of the spaceship gets to an unusual and beautiful planet full of various monsters, which was not part of her plans. You will need to help the heroine repair the ship and get out of this planet.
- 9
LIMBO
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
Uncertain of his sister's fate, a boy enters LIMBO
- 10
INSIDE
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
Hunted and alone, a boy finds himself drawn into the center of a dark project. INSIDE is a dark, narrative-driven platformer combining intense action with challenging puzzles. It has been critically acclaimed for its moody art style, ambient soundtrack and unsettling atmosphere.
- 11
Planet of Lana
Single-player alternative to PLANET ALPHA — playable solo, no multiplayer required. Shares Action and Indie with PLANET ALPHA.
In a world torn between nature’s grace and cold machine invasion, one girl and her companion must rely on their bond to survive and protect what they hold dear. Their story of hope, loss, and love will stay with you long after the journey ends.