Science
Scientific research (Key N) unlocks new buildings, production, and some special abilities.
To unlock a new science, you need to accumulate enough points in any previous one. You get points for using a science (building buildings, harvesting plants, or crafting items related to this science).
If no science can be researched using science points, you will automatically get upgrade points that can be used to gain global upgrades. The upgrade point tier is based on the science tier.
Scientific researches are divided into eras. To get access to a science from the next era, you must research a certain number of sciences in the current era. Discovering a new era immediately gives you access to the basic science of this era.
Ⅰ Era
Ⅱ Era
Ⅲ Era
Ⅳ Era
Ⅴ Era
