Here is a summary of what we added during the course of Early Access which added much content and polished a great deal of the game:

3 regions

7 islands and locations

3 ships

Farming

Hunting traps

Firearms and metal armor

3 bosses

2nd tier house building

Languages: Spanish, Japanese, BR Portuguese, Korean, Chinese

Custom difficulty settings

tons of UX UI improvements

Numerous potions, crafting recipes, animal species, skillbooks, perks, plants, survival tasks, and quests"