Single-player games like Stellar Infestation
Below are 10 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
IDUN - Frontline Survival
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
A defense RTS where you can move turrets at will. Extract resources, upgrade technology, and defend against enemy swarms in a gripping space campaign. Hold the line, set up your turrets, and brace for screen-filling hordes!
- 2
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.
- 3
Reshaping Mars
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellar Infestation.
「Reshaping Mars」is a colony simulation game on Mars, you will start by gathering resources, storing food, accepting immigrants, and building a better colony together. Develop powerful technologies for Mars Reshaping, make Mars great agai..sorry, just great. Don't forget to make the residents happy.
- 4
Mars or Die!
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy with Stellar Infestation.
Control two characters simultaneously! Survive, gather, collect upgrades, fight all sizes of one-eyed Martians, build defensible outposts and conquer Mars, in this glorious mix between roguelite and tower defense.
- 5
Cliff Empire
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellar Infestation.
After a nuclear war life on the surface became impossible. A 300m thick radioactive fog covered the Earth. We are looking for bold active people to manage the process of restoring life on Earth. Join!
- 6
Creeper World 3: Arc Eternal
Single-player alternative to Stellar Infestation — playable solo, no multiplayer required. Shares Strategy and Simulation with Stellar Infestation.
Creeper World 3 is what happens when cellular automata takes over a strategy simulation. Instead of discrete units that attack your base, a fluid-like substance spreads over the terraformable terrain. Your base, your weapons, your strategy... you must adapt them all.
- 7
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.
- 8
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.
- 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
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.