Upgrade to the 2nd tier hull.

Discard 25 fish.

Complete the introduction quest.

Cure a zombie villager.

Brew a potion.

Cast the very first clayborn mould.

Complete Chapter 1.

Equip 1 Legendary melee weapon and 5 Legendary armor pieces.

Upgrade the Adrestia for the first time.

Play a music disc in a Jukebox.

Gather all 16 colours of wool.

Eat nothing but Kelp for 3 days.