Purchase something from the Duke in the story.

Destroy a Goat of Warding.

Craft an item in the Crafting menu.

You have mastered the game and collected all there is to collect!

Collect 2000 Precursor Orbs

Collect 112 Scout Flies

Free the Yellow Sage

Reach the End of the Lava Tube

Stop the 3 Lurker Glacier Troops

Break all Four Tethers to the Zeppelin

Defeat the Lurker Ambush

Defeat Klaww

Navigate the Blue Precursor Rings