I love the core idea and with some polish, I think it could be pretty great. I think some core usability work could go a long way here though - The current control scheme, amount of text + small size of text, etc adds a lot of friction getting into it, especially for people with older eyes :P Remember that those games in the 80s usually only had a few basic inputs and much fewer pixels to work with so everything was huge on screen.
Honestly with a UX/Usability pass, I think this would be amazing. As it was, I still had a fun challenge going, launching, and landing the rocket. I loved the approximations of space physics with the stylized world. If you continue developing this project then I would love to check back in on it in future.
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