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
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.
- 2
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.
- 3
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!
- 4
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!
- 5
How to Grow Your Sausage
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Every [key]stroke makes your sausage bigger. Let it sit in the corner of your screen and watch it grow while you use your computer. Feed it different meats, upgrade your butcher, and see the magic happen. Have you ever dreamed of growing your sausage? Now it’s finally possible!
- 6
Desktop Gugu: Cozy Idle Pet
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Desktop Gugu is a cozy taskbar companion. Freely place crystals, sacred trees, or nuclear reactors to assign pets to different production jobs. Pet, feed, and fuse them to unlock 12+ quirky companions. Fully supports transparent mouse-passthrough to keep your work uninterrupted.
- 7
Root Genesis
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Simulation and Casual with My Little Cosmos.
An idle/incremental game with a hacker twist. Type commands, deploy exploits like worms and ransomware, and take on contracts to pwn every node on the network. Upgrade your toolkit, expand your reach and expose the conspiracies the elite cult never wanted you to find.
- 8
Desktop Oasis
Single-player alternative to My Little Cosmos — playable solo, no multiplayer required. Shares Indie and Simulation with My Little Cosmos.
Your ultimate desktop companion! Seamlessly embed a living oasis into your Windows background with ultra-low CPU usage. Type to gather inspiration, spawn interactable plants, windmills & boats! Unlock stunning aquatic ecosystems and trade rare items on the Steam Market.
- 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.