HardFrost
HardFrost difficulty : If you manage well, you should keep living without loss.
Perfect if you want some change without heavy drawback.
HardFrost made the winter a worst enemy than others empires. Or is supposed to do that.
There is new season effects that will surprise you (bad surprise I guess), and force you to change your strategy, asking some anticipation.
Mecanic of the mod is to regroup aleatory effects in 4 categories. Each winter, the game can choose 1 effect in one category among 2 effects, and among the remaining effects not choosen of previous winters.
Categorys are : Army and Vision and Movement, Food and Approval, Dust and Citypoint, Industry and Science.
Time rate of seasons are supposed to be improved, so all seasons are shorters, and winters effects accumulate more quickly.
There is no endless winter in late game, seasons keep same frame rate all the game.
