Ardwick
A slower, balanced survival overhaul for players who miss Minecraft's Golden Age.
Eclipse
A Solar Eclipse reducing daylight at Noon as the Moon passes in front of the Sun.
New Textures
Home is where the hearth is
The Campfire cooks food, provides regeneration, and sets your spawn. The Mud Kiln replaces the Furnace. The Bloomery is required to process Raw Iron into Ingots. The Blast Furnace converts Iron into Steel and Ancient Debris into Netherite.
Wild crops
Wild crops spawn naturally throughout the world in small patches
Small Portals
Nether portals can be arbitrarily small (from 1x1 to 21x21).
HUD
The Vigour Bar indicates whether you have accumulated Vigour, Fatigue, and Cold which determines your immediate movement speed, mining speed, and attack damage.
Advancements
Advancements provide a progression guide.
Alloys
Alloys keep copper relevant late-game. Bronze and Rose Gold can be used to craft tools, weapons, and armour for yourself and your horse/nautilus.
Rose gold
Rose gold is an alloy of gold and copper, increasing the durability of both, never tarnishing, and providing low levels of fire protection and looting.