Build some bookshelves to improve your enchantment table.

Swim in lava while having the Fire Resistance effect.

Use the Totem of Undying to cheat death.

Defeated Raven.

Defeated Demogorgon.

Defeated Belial.

Retrieved the Hyper Cell from Abyss Levoire.

Completed Kaya's story.

Defeated Tachy.

Defeated 100 enemies with Beta Skills.

Defeated Brute.

Defeated Gigas.

Defeated Abaddon.