Single-player games like Stellar Infestation
Below are 12 single-player Steam games similar to Stellar Infestation, 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 Stellar Infestation page.
Ranked picks
- 1
Anno 2205™
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellar Infestation.
In Anno 2205™, you join humankind‘s next step into the future with the promise to build a better tomorrow. You conquer Earth, establishing rich, bustling cities and grand industrial complexes, but to secure the prosperity of your people, you must travel into space.
- 2
Ashes of the Singularity: Escalation
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellar Infestation.
A massive-scale real-time strategy game where you command entire armies on a dynamic battlefield. Conquer multiple worlds across several single-player campaigns; or play with your friends in multiplayer combat.
- 3
They Are Billions
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
- 4
Stronghold: Definitive Edition
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellar Infestation.
Greetings sire! Your stronghold awaits you. Build a castle economy, besiege unforgettable villains and return to the 'castle sim' that started it all. Experience this classic RTS with upgraded visuals, modernised gameplay, Steam multiplayer and a new campaign.
- 5
Spacebase Startopia
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellar Infestation.
Spacebase Startopia captivates with its original mixture of economic simulation and empire building strategy paired with classic RTS skirmishes and a good dose of humor.
- 6
Earth 2160
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
After the destruction of the EARTH in 2150, the leaders of the Eurasian Dynasty escaped on board an evacuation fleet. Now they are fighting for the survival of the human species. Their base is one large building comprising of smaller variable parts.
- 7
Taur
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
Taur is an action-strategy sci-fi game. Control the Prime Cannon and unlock all of its powerful weapons and abilities. Build turrets, droids, aircraft and more as you fight to protect the homeworld of the Tauron droids against a relentless invasion. Will your Taur stand against the Imperion warmachine?
- 8
rymdkapsel
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
Build a space station. Command the tiny crew. Explore the galaxy. A meditative space strategy game.
- 9
Guardian Grids
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
A simple and fun tower defense game! Combining light card elements with the fun of randomness.
- 10
Kart Soccer Party
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required.
Robot drivers. Kart-powered football. Drift into a turbo boost, leap into an air dash, and smash a giant ball toward goal. Play solo against AI or battle friends over Steam online or LAN. Unlock karts and robot drivers, set the rules, and turn every kickoff into joyful chaos!
- 11
Rogue Realm: Guardian Grids
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
Rogue Realm: Guardian Grids is a medieval fantasy blend of tower defense and roguelike progression. Build defenses on a grid, manage resources, and survive ever-evolving enemies.
- 12
One More Claw
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Simulation with Stellar Infestation.
3D physics claw machine + roguelike building. Land it in the chute; blast the target with base times multiplier.