Single-player games like My Little Cosmos
Below are 16 single-player Steam games similar to My Little Cosmos, 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 My Little Cosmos page.
Ranked picks
- 1
Galactic Simulator 3
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Galactic Simulator 3 is a space exploration and evolution sim inspired by the Fermi Paradox and Great Filter theory. Scan uncharted star systems, gather resources and samples, establish outposts and stargates, and witness the rise and fall of civilizations across an ever-evolving galaxy.
- 2
A Game About Getting Bigger
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
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.
- 3
Astromental Incremental
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Mesmerizing incremental idle clicker game about space. When objects collide, you receive matter. Use this matter to unlock and upgrade objects in your star system. Use powerful Abilities. Dive into the Prestige system (Warp) with a wide Skill Tree, and discover new star systems with new bonuses.
- 4
Desktop Slime Graveyard: Tap Reaper
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Slimes are invading your desktop, and every keystroke becomes a powerful counterattack. Unlock all kinds of weapons, draw wildly inventive artifacts, and collect strange and wonderful slimes. Fight alone or team up with friends to give the slimes a beating!
- 5
Nano Reef
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Simulation and Casual with My Little Cosmos.
Turn every keystroke into a thriving ocean! Nano Reef is a cozy companion game where typing or clicking earns gold—without interrupting your work. Spend gold to buy marine fish, vibrant corals, and decorations, or feed your fish to interact. Build your unique, relaxing desktop aquarium!
- 6
Dyson Sphere: Desktop Factory
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Simulation and Casual with My Little Cosmos.
Ignite your base on Tpler and forge your Dyson Sphere industrial wonder. Build automated desktop lines, deploy drone logistics, launch units to orbit. Draw tech perks for your build and boost output. Your custom Dyson Sphere orbit is exclusive live wallpaper, bringing cosmic romance to your desktop.
- 7
Galacto
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
A cozy idle game that lives at the bottom of your screen. Run a space gas station, refuel ships, hire bots, chain combo for fat payouts, and rebuild an outpost into the busiest stop in the galaxy!
- 8
POP! Blind Box
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Pop! Blind Box is a relaxing idle game where every keystroke and click builds up energy for the thrill of unboxing! Collect designer toy figures, build your display showcase, mix and match figure skills to battle powerful enemies. The perfect blend of blind box collecting and match-3 combat!
- 9
Halley Mission: 2061
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie with My Little Cosmos.
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 My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
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 My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
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
Inspiral: Echoes of Gravity
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
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.
- 13
Neuter Master
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
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.
- 14
Idle Sailor
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Simulation and Casual with My Little Cosmos.
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.
- 15
Stellar Industrialist
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Simulation and Casual with My Little Cosmos.
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.
- 16
Periapsis: Gravity Slingshot
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Lead humanity’s final journey beyond Earth. Launch ships, harness gravity slingshots, and explore distant star systems to make humanity multi-planetary.