Similarly, mindustry is written in java by a single developer freshly out of college and is incredibly performant for the amount of moving pieces rendered at a

Similarly, mindustry is written in java by a single developer freshly out of college and is incredibly performant for the amount of moving pieces rendered at a time. Granted I'm not in video games, maybe it's not too hard, but I thought it was really cool. It's also an incredibly cool, interesting game design. If you like Factorio + Tower Defense you should check it out.