Perk Tree for nations

[Autumn Annayah]

A tree you can invest cash and resources in to unlock bonuses for your nation such as income increases, military buffs whether its damage or increase military building capacity, resource production buffs, buy discounts, etc

[Shakyr]

Personally, projects are a poor man's tech tree. I would much prefer a decent tech tree, so we could have more variety in nation builds.

I'd make sure of two things though:

First, add things like City Count, Infra Count, Land Count to the prereqs (along with any previous nodes). Maybe even stuff like "must own x improvements" or "x soldiers", etc.

Two, have opposing branches in some cases. If you unlock x, researching y will negate x (and you'll lose it and anything unlocked after x). Also the further you go down the path of x, the more expensive y becomes.

This stops nations (like myself) from simply buying out the whole tech tree. Which is currently what I've done with the projects (hello 23/30 project slots). It also makes people think about what they're choosing.