I've played until green sci (pre-oil) so far and encountered some balancing issues:
- Space sci is VERY slow due to ice! I've invested quite a bit into expanding the platform and I'm bottlenecked by ice at around 10spm. Space sci should cost much less ice imo (maybe 5-10) as oxide asteroids are really rare. I only see this issue getting worse after unlocking oil.
- Space platforms are quite expensive, especially on iron. Maybe it is due to me expanding a lot to get more ice but I'd slightly reduce the iron cost on platforms as well. Carbon poses no issue on that.
- Steam power seems obsolete to me as solar is really strong and basically free. Also I don't want to waste my precious ice on that.

I really like the concept of this mod and hope there is more to come :)