Life & fun · alternatives · 2026
24 alternatives to Space Engine
Simulate a universe
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Space Engine launched in 2018; newer entries below may have overtaken it.
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Explore the universe directly in your browser
2025 · universesim.vercel.app · its alternatives →
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AstroGrid▲113Explore the entire universe in your browser, in real 3D
Apr 2026 · velonspace.com · its alternatives →
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Hello, I am the creator and maintainer of Stellarium Mobile. I have been working in my free time for about a year on this new project Galaxium, that is more about traveling in the universe rather than looking at the sky from Earth. It is still experimental, and at the moment I am not sure what it will become. Feedback is welcome.
Aug 2026 · galaxium.app · its alternatives →
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Swipe decision game, explore, and conquer the galaxy
2024 · play.google.com · its alternatives →
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3D simulator that models planets, orbits, propulsion systems
Nov 2025 · solar.chriswest.tech · its alternatives →
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I didn't realize Universe Sandbox ran on MacOS, and I was in the mood to play around a bit. Some functions it's got: - Random system generation - Sonification is super fun too - Habitability Simulation (Just for fun, don't cite this please) - Replacing, spawning, deleting objects I've had tons of fun building this, so I hope someone else can share the joy. It's free and runs in the browser. I'd love to hear any feedback. I think this is at a state where I might leave it as it is, but if people are interested in other features, maybe I'll keep working on it. I've kept saying I'll stop working…
Dec 2025 · luna.watermelonson.com · its alternatives →
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I built this with Claude cause I always wanted to tinker with a simulation economoy and I love space themes. A space-economy sim where nothing is scripted. A few hundred autonomous ships each run their own planner. Some chase the best trade route, take a delivery contract, refuel, retrofit at a shipyard, or dock so the crew can rest before morale tanks. Markets price everything off supply with shortage-urgency multipliers, factions tax and subsidize, populations migrate when they're unhappy, and stations that go broke get abandoned and rot. It started as an Elixir/Phoenix prototype, but…
Jul 2026 · github.com · its alternatives →
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Second only to working at Space X
2015 · kerbalspaceprogram.com · its alternatives →
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Astroneer▲98A game of aerospace industry and interplanetary exploration
2015 · astroneer.space · its alternatives →
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Explore the worlds and systems of Star Wars.
2015 · starwarsgalaxy.co · its alternatives →
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SpaceSim▲7Explore a free 3D space simulator in your browser. Travel across the Solar System, change time, inspect source-backed worlds, and collect postcards.
Jul 2026 · spacesim.co · its alternatives →
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~spaces~ V2▲64virtual universe w/ you can create worlds and meet friends
2021 · apps.apple.com · its alternatives →
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Spatium▲182Hi there, humans! I'm excited to announce Spatium! I'm a big fan of any topic related to our universe. I'm also a developer, so I've put these things together and I built this new tab Chrome Extension for space lovers, astronomy fans, and science geeks like me. If you enjoyed it, please spread some love <3 FEATURES • Space images • Every day, get a fascinating image of our universe. Enjoy pictures of stars, planets, moons, galaxies, nebulae, comets and more right on your browser tab. • Sun Widget • Find out when the sunrise, sunset, first and last light times will be precisely at your…
2021 · spatium.earth · its alternatives →
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Universe explorer in the browser: real science where we
Sep 2026 · farseer.space · its alternatives →
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An open world starship simulator (Early Access Game)
2015 · store.steampowered.com · its alternatives →
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A 3D universe explorer & astronomy app, in your browser
Jun 2026 · space.pointdynamics.com · its alternatives →
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Did this a few years ago. Seems apropos. Sources and more here: https://github.com/EngineersNeedArt/Mooncraft2000
Apr 2026 · mooncraft2000.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →