You will start in Winter, where the temperatures have been adjusted to be freezing cold, you will not last long without a heat source nearby. Animals will drop carcasses where you will need to butcher them for food, crops not in season won't grow, and snow will start piling up around you. You will need to manage your thirst, hunger, and body temperature.
But don't get too comfortable, summer is coming, and the heat will damage you just as quickly.
This modpack aims to create a semi-realistic Vanilla+ modpack where the environment is out to get you, but without all the added fluffery of completely changing the game. It provides a challenging start but turns into a lovely calm seasonal vanilla world once you have progressed to manage the temperature.
Butchery is has been reanbled in 0.2.1, I may need to disable it later if it's still not workable.
Planned Additions:
FTB Quests for minor guidance
Mod adjustments
Better leather system / waiting on Butchery fix