Single-player games like Periapsis: Gravity Slingshot
Below are 14 single-player Steam games similar to Periapsis: Gravity Slingshot, 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 Periapsis: Gravity Slingshot page.
Ranked picks
- 1
Stellar Industrialist
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Simulation with Periapsis: Gravity Slingshot.
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.
- 2
Inspiral: Echoes of Gravity
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Indie with Periapsis: Gravity Slingshot.
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.
- 3
Vanguard Galaxy
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Indie with Periapsis: Gravity Slingshot.
A relaxing game about space exploration that can be played full screen or at the bottom of your screen. Trade, fight, mine and salvage your way through a procedurally generated galaxy. Let the game idle while your autopilot handles business and builds your fortune.
- 4
Stellar Settlers: Space Base Builder
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Indie with Periapsis: Gravity Slingshot.
Stellar Settlers is a chill space base/city builder and colony sim game. With unique vertical and horizontal base-building gameplay, settle on 10 hostile alien planets and build your own thriving colony. Get enough materials to build a physics-based Spaceship and try to escape from disasters.
- 5
Rocket Science
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Simulation with Periapsis: Gravity Slingshot.
Take part in a space program. Design spacecrafts and send them off to explore the vast expanses of space. Experience the real scale of the Solar system and the size of its celestial bodies.
- 6
Ostranauts
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Indie and Simulation with Periapsis: Gravity Slingshot.
Navigate your scrappy ship through the boneyard in search of valuable parts in abandoned vessels. Use salvage to upgrade your ship, or sell it for cash to pay down your mounting debt, or restock fuel, air, or food. Fly and role-play aboard your dream spaceship in this hardcore noir space-sim.
- 7
Spaceflight Simulator
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Indie and Simulation with Periapsis: Gravity Slingshot.
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
- 8
Dimensions: Dreadnought Architect
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Simulation with Periapsis: Gravity Slingshot.
Unleash your creativity, design your dreadnought with a variety of modules, and have complete control over the function and style of each module. Command your battleship with wisdom and decisiveness. Gallop in the vast galaxy and destroy all enemies.
- 9
Halley Mission: 2061
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Indie with Periapsis: Gravity Slingshot.
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 Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Indie and Simulation with Periapsis: Gravity Slingshot.
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
Galactic Simulator2: Stargate
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Indie with Periapsis: Gravity Slingshot.
Galactic Simulator 2: Stargate is a roguelite simulation game inspired by the Fermi Paradox and the Great Filter. Pilot your ship, gather resources, build stargates, and discover other civilizations as you explore an ever-evolving galaxy.
- 12
Neuter Master
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Indie with Periapsis: Gravity Slingshot.
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.
- 13
Idle Sailor
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Strategy and Simulation with Periapsis: Gravity Slingshot.
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.
- 14
My Little Cosmos
Single-player alternative to Periapsis: Gravity Slingshot — playable solo, no multiplayer required. Shares Indie and Simulation with Periapsis: Gravity Slingshot.
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.