Single-player games like Under the blue horizon
Below are 10 single-player Steam games similar to Under the blue horizon, 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 Under the blue horizon page.
Ranked picks
- 1
Moon Fishies
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
Moonfishies is relaxing desktop fish simulator. Customize your dream aquarium, catch new fish and breed unique hybrids!
- 2
Behind Glass: Aquarium Simulator
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
Create stunning virtual aquariums on your PC! Our advanced 3D engine brings your fish tank to life with breathtaking realism, featuring lifelike fish, plants, decorations, and more. Transform your monitor into a vibrant, living aquarium. Virtual aquascaping has never been easier!
- 3
Bao Bao's™ Cozy Laundromat
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
Relax in Bao Bao’s Cozy Laundromat, an idle game where you join Bao Bao, a charming panda, in creating the coziest laundromat. Purchase colorful washing machines, add delightful decorations, and hire panda helpers. Watch your cozy laundromat bustle with life, even when you’re not around!
- 4
Joyquarium
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
Joyquarium is a relaxing casual fish-raising game. Buy various cute fry and sell them at a high price after they grow up. With the money you earn, you can purchase aquatic plants, driftwood, scenery stone, etc. to decorate your tank (you can freely adjust the color, size, and position).
- 5
Village Tale
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
A relaxing idle village-building simulator nestled in the corner of your screen! Build, Craft, and Trade to guide your village from humble beginnings to a thriving trading hub, it's time to write your own Village Tale!
- 6
SUPER BUILD
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
Build, design, and explore your own fantasy world using over 1000+ items, in this relaxing sandbox game. No missions, no objectives, no timers. Just stress-free building, exploration, and good vibes.
- 7
Time Is Honey
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Simulation and Casual with Under the blue horizon.
Time Is Honey is a relaxing idle game where you manage bee hives. Collect unique bees by opening bee packs, take care of them in real-time and then turn it all into profit. Unlock, upgrade and customize your hives, and enjoy completing your collection of bees.
- 8
Tiny Pasture
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
Meet your new little desk buddies! They’ll snooze, scratch, and scamper around while you work or study (don’t worry, they’ve been trained not to invade your workspace). If you’re good at animal management, they will occupy the bottom of your screen with different kinds and colors!
- 9
Rusty's Retirement
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Indie and Simulation with Under the blue horizon.
A relaxing idle-farming simulator that sits at the bottom of your screen while you do other things.
- 10
Chillquarium
Single-player alternative to Under the blue horizon — playable solo, no multiplayer required. Shares Simulation and Casual with Under the blue horizon.
Chillquarium is a cozy and relaxing idle game. Buy fish and raise them in real time, then sell them to turn a profit! Customize your aquarium as you progress from a simple starter tank to your dream setup by filling your collection with rare exotic fish and ultra-rare color variants!