Universe Sandbox
Space Engine
Celestia
Stellarium
Sky Guide
OpenSPH
Cosmonium
Simulate the physics of the Universe on a large scale and create stunning visuals. Play with intergalactic interactions, smash planets together and even create the Big Bang itself!

EVE Online
Star Citizen
Star Conflict
Universe Sandbox
Freelancer.com
Vendetta Online
Star Trek Online
Build spacecraft, fly them, and try to help the Kerbals to fulfill their ultimate mission of conquering space.

Which is more popular?
Based on our record, Kerbal Space Program seems to be more popular. It has been mentioned 7 times since March 2021.
Website, pricing, platforms and company facts side by side.
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Galaxy Engine
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| Website | store.steampowered.com | kerbalspaceprogram.com |
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What each product offers, as listed by its team.

Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of Kerbal Space Program yet.
Walkthroughs and reviews on video.
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Kerbal Space Program Video Review
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How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using Galaxy Engine and Kerbal Space Program. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Tracking Galaxy Engine since Mar 2026.
Is see kerbalspaceprogram.com and discord.com. Usually I just paste the invite link directly into discord. Source: almost 4 years ago
Kerbal Space Program is a VERY GOOD rocket science game, with very realistic physics. Source: over 4 years ago
And of course… KERBAL SPACE PROGRAM, where you can recreate as much of the classic Space Race and beyond as you like while learning (mostly) realistic orbital physics! Source: over 4 years ago
When comparing Galaxy Engine and Kerbal Space Program, you can also consider the following products.

Universe Sandbox ² is a physics-based space simulator where you can simulate Events and even break physics and friction with certain features.
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Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.
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Space Engine is a realistic virtual Universe you can explore on your computer.
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1, 966, 341. Active citizen. Help us make Star Citizen a reality! Become a backer of the next-generation of Space-man. Reserve your ship.
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Real-time 3D visualization of space
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Star Conflict is a free MMO action game and space simulator that was introduced in 2012.
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