Single-player games like Galactic Simulator2: Stargate
Below are 13 single-player Steam games similar to Galactic Simulator2: Stargate, 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 Galactic Simulator2: Stargate page.
Ranked picks
- 1
Inspiral: Echoes of Gravity
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Indie with Galactic Simulator2: Stargate.
Start as an asteroid, grow by absorbing other celestial bodies to become a planet, a star, and ultimately a black hole. Experience realistic gravity and orbital physics in an ever-evolving sandbox universe.
- 2
Stellar Industrialist
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Simulation with Galactic Simulator2: Stargate.
You are neither a general nor a soldier — you are a Stellar Industrialist. To you, peace is nothing but shutdowns and losses. Venture to the frontlines, strip battlefields for wreckage and salvage, turn spoils into resources, and expand your interstellar arms empire.
- 3
A Game About Getting Bigger
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Indie and Simulation with Galactic Simulator2: Stargate.
A Game About Getting Bigger is a loot-driven incremental game about feeding a growing black hole. Destroy celestial bodies to make the black hole at the center grow larger and larger.
- 4
My Little Cosmos
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Indie and Simulation with Galactic Simulator2: Stargate.
My Little Cosmos is a light idle clicker game that runs quietly in the background. Keyboard input and mouse clicks from everyday computer use automatically drive the evolution of a universe, with inventory rewards dropping over time.
- 5
Gods of Havoc: Into the Void
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Indie with Galactic Simulator2: Stargate.
Gods of Havoc heralds a return to the classic God-Game: watch as your worshippers spread across the galaxy; guide their destiny through dreams; shape their worlds with magic; destroy their enemies with devastating spells; and manipulate space for their advantage! An intense and cunning strategy game. Part of the 'Gods of Havoc' Trilogy!
- 6
Battlestar Galactica: Scattered Hopes
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Indie with Galactic Simulator2: Stargate.
In Battlestar Galactica: Scattered Hopes, take command of a fleet escaping the annihilation of the Twelve Colonies. Manage crises on board as you prepare for the next encounter with the Cylon Fleet. Times are dire, and hard choices must be made. Your only hope: rejoin the Battlestar Galactica.
- 7
Space Company Simulator
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Simulation with Galactic Simulator2: Stargate.
Take the position of a CEO of a space transport company and become a new major player in the industry. Space Company Simulator is a realistic management sim game that will challenge your planning skills as you strive to launch the first manned mission to Mars.
- 8
Nonentity Galaxy
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Indie with Galactic Simulator2: Stargate.
Fight, Scavenge, Survive, and File Your Taxes. A grim yet hilarious space strategy roguelite where you must balance hull integrity against your company's relentless profit margins. Warning: Contains lethal doses of dark humor and corporate exploitation.
- 9
Halley Mission: 2061
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Indie with Galactic Simulator2: Stargate.
Embark on a sci-fi survival adventure on Halley's Comet as a retired astronaut on a top-secret mission. Build, manage limited resources, and survive the desolate space environment to complete your mission.
- 10
Galactic Simulator
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Indie and Simulation with Galactic Simulator2: Stargate.
Galactic Simulator is a clicker game based on the Fermi Paradox and the Great Filter theory. Players can simulate the evolution of celestial bodies and civilizations in the galaxy from an observer's perspective. The game supports multiplayer mode. Create a unique galaxy with friends!
- 11
Neuter Master
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Indie with Galactic Simulator2: Stargate.
A lighthearted roguelite breeding game where you match animals on a customizable grid, earn gold with slot-machine-style combos, and balance breeding, sterilizing, and upgrades to keep your herd thriving year after year.
- 12
Idle Sailor
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Simulation with Galactic Simulator2: Stargate.
Idle Sailor is a relaxing idle adventure where you sail between world destinations, livestream your journey, capture underwater photos of unique fish, and unlock upgrades to make each voyage faster and more rewarding.
- 13
Periapsis: Gravity Slingshot
Single-player alternative to Galactic Simulator2: Stargate — playable solo, no multiplayer required. Shares Strategy and Indie with Galactic Simulator2: Stargate.
Lead humanity’s final journey beyond Earth. Launch ships, harness gravity slingshots, and explore distant star systems to make humanity multi-planetary.