I've been loving this mod, but I strongly believe it is overdoing the "Ultimate" thing. Some balance changes I think would be healthy:
1)The building upgrades this mod provides don't have any strategic resource upkeep. This makes that entire branch of economy entirely obsolete, along with every building in this mod which grants those resources.

2)New buildings completely beat vanilla in every way. While that's the point of having very powerful buildings, there's no feel of *progression*. I'd be nice for the new buildings to be upgrades to vanilla equivalents if possible or at least have much higher costs and build time if not.

3)Speaking of that new decisions are *waaay* too cheap for what they do. Increasing a tiny 6-size planet to size 25 in 5 years for 15K minerals and energy? Increasing all district production by like 5 times in 2 years for 30K minerals?
The snowball potential is immense. Utopia worlds are arguably more powerful than ecomenopoli, but don't require neither a giant pile of alloys, nor 10 year period when most of your districts are useless and not even Arcology Project ascension perk.

4) Daaaamn the weapons are powerful. Being able to eat a triple X5 crisis for breakfast with a single 40 battleship fleet is only fun for a while.