Throw diamonds at another player.

Smelt an iron ingot.

Attack and destroy a monster.

Construct a better pickaxe.

Construct one type of each tool (one pickaxe, one spade, one axe and one hoe).

Use planks and sticks to make a sword.

Open your inventory.

Have all armor and weapon slots equipped with Legendary or Exotic gear.

Complete a Strike without anyone in your fireteam dying.

Fully upgrade a Titan Subclass.

Kill 100 Warlocks in PvP.

Assist in capturing 50 capture points in Control.

Decrypt 25 Engrams.