Single-player games like Phantom Signal — Sci-Fi Strategy Game
Below are 11 single-player Steam games similar to Phantom Signal — Sci-Fi Strategy Game, 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 Phantom Signal — Sci-Fi Strategy Game page.
Ranked picks
- 1
nStations
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy and Simulation with Phantom Signal — Sci-Fi Strategy Game.
Construct and manage your colony anytime, anywhere, any device!!!!
- 2
Cosmic Robots
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy and Simulation with Phantom Signal — Sci-Fi Strategy Game.
Defend your planet from waves of robot invaders! Build powerful turrets, upgrade your defenses, and command robot units to fight drones, tanks, and massive bosses. Then send your own forces to attack the enemy planet in this action-packed sci-fi tower defense game.
- 3
Star Command Galaxies
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy with Phantom Signal — Sci-Fi Strategy Game.
Take command in the ultimate starship simulator: Star Command Galaxies. Become a Captain, recruit your crew, customize and upgrade your starship, battle alien vessels, teleport to away missions and repel boarding invaders in this real-time strategy simulation adventure from indie studio Warballoon.
- 4
Particle Fleet: Emergence
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy and Simulation with Phantom Signal — Sci-Fi Strategy Game.
Build and design your own fleets and stand opposed to the Particulate in this physics/strategy/RTS/fleet hybrid. Build partially destructible and self repairing ships that interact with enemies less controlled by some scripted logic and more driven by a real time massive physics particle simulation.
- 5
Void Destroyer 2
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy with Phantom Signal — Sci-Fi Strategy Game.
Start with nothing... End with everything! All you have is a basic ship, barely fit for combat, with it you'll start your journey and empire. A open world space sandbox, inspired by and expanding the classics.
- 6
Void Destroyer
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy with Phantom Signal — Sci-Fi Strategy Game.
Combining the best of space combat and real time strategy. Victory can be tactical, a dogfight or capital ship slugging match - depending on how you decide to achieve it. Space combat on a RTS scale with space sim savagery.
- 7
BattleGroupVR
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy and Simulation with Phantom Signal — Sci-Fi Strategy Game.
BattleGroupVR is a first person real-time space strategy where you lead a fleet of powerful warships into battle from the bridge of your own flagship. Assemble your fleet, upgrade your load-outs, train your captains, engage the enemy and secure the sector. Try not to go down with the ship.
- 8
Starport Delta
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy and Simulation with Phantom Signal — Sci-Fi Strategy Game.
Build amongst the stars in Starport Delta, a light sci-fi strategy game that focuses on survival. Station Commanders across the universe will turn to you for guidance to expand, defend, and survive. Help them build a thriving station, but watch out, there are many dangers hiding in space...
- 9
Revenge of the Titans
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy with Phantom Signal — Sci-Fi Strategy Game.
The ultimate mash-up of Real-time Strategy and Tower Defense!
- 10
Eufloria HD
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Strategy with Phantom Signal — Sci-Fi Strategy Game.
Experience the celebrated strategy gameplay of Eufloria HD. Conquer asteroids in space and use their resources to grow floral creatures that do your bidding. Expand your empire and fight against several teams of AI opponents that all vie for the same resources and can offer fierce opposition.
- 11
.T.E.S.T: Expected Behaviour — Sci-Fi 3D Puzzle Quest
Single-player alternative to Phantom Signal — Sci-Fi Strategy Game — playable solo, no multiplayer required. Shares Simulation with Phantom Signal — Sci-Fi Strategy Game.
.T.E.S.T: Expected Behavior is a first-person brain twister with a sci-fi plot. On top of logic, you'll need a fast reaction speed, "outside the box" reasoning, and the skill to adapt to unfamiliar situations.