I feel like I can pretty much unlock everything in the game inside of a 60-90 minute play session. I know there is a balance between being demoralizing in terms of pace and just handing it out but I just feel like it all goes by too quick. Would be cool if things like the large spaceship, rover, etc were 4-5 times more expensive and the research items on the starting planet capped at X research. This would force the player to build a small shuttle to go to other planets in order to get research that is worth more. Then with the large spaceship you could go to even further planets to get even more valuable research. I feel like there is a foundation for a very solid progression system, it just isn't there quite yet.
All that said, loving the game and excited for the future