Story-focused total conversion mod featuring fully custom tech trees and modules. New, interesting stories and lore are being developed for each of the 'vanilla' races. Hundreds of new generic and trait-based techs, weapons, defenses, buildings, and empire improvements; new heroes and victory conditions; you'll hardly recognize Endless Space!
Demonstration from trait techtree, new planet, new starting situation and new traits
Not sure whether this picture is that well done but oh well, description helps:
Tax slider - for UE it doesn't matter whats your tax, your happiness and monetary income doesn't rise based to it.
You have several traits affecting to empire as shown in upper right corner.
Each system has 0 science production, this is because half of your money income rises your empires science production.