Top similar games like SimpleRockets:
SimpleRockets $7.99
I am excited to release my first game on Steam! SimpleRockets was released in 2013 for mobile and I've put a ton of work into it to get it ready for PC and Mac. It was inspired by KSP, and it offers a simpler 2D experience for building rockets and exploring space with realistic orbital mechanics.
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Hotloop$2.99
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Mars Horizon$19.99
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Mars First Logistics$19.99
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Interstellar Rift$19.99
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Archean$19.99
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Empyrion - Galactic Survival$19.99
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Ostranauts$19.99
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Solargene$29.99
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Sins of a Solar Empire®: Rebellion$19.99
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