Wow!! Thank you, your comment means a lot! I do plan on making it longer with more randomness, planet types, unique events and relics, and several chapters like you described 😁
To keep the scope under control, first I wrote down everything that I wanted and then cut as much stuff as I could without sacrificing the game essence too much. I also tried to keep an average playthrough at around 10 minutes for a jam game, and not make it too hard because the replayability is currently limited. But I’ll be expanding this!