Hardcraft: No Mercy

This modpack aims to make the gamer harder.

Breaking trees isn't as easy as before. In order to break your first tree you have to make flint tools.
Hydrate! Hunger is simple to satisfy, but you'll have to drink water to quench your thirst!

Food spoils logically.

Staying warm is essential to surviving so you might want to make a firestarter or some wool armor so you don't freeze, but don't overheat.

Mobs have learnt to wield weapons, ender pearls, tnt and more. They can even mine! (also they have suncreen)

You bleed, getting hurt will make you bleed so carry around a bandage, also monsters can smell your blood so be careful.

Progressive survival is the basis  for this mod(and obviously to make it as hard as it can get). Beating bosses will make the game even harder.