Use a Dried Kelp block as fuel in a furnace.

Stay underwater for 2 minutes.

Breed two cows with wheat.

Catch and cook a fish!

Discover 17 of 40 biomes.

Discover a Shipwreck.

Play a music disc in a Jukebox.

Wear a full suit of Iron armour.

Turn wheat into bread.

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

Smelt wood trunks using charcoal to make more charcoal.

Attack and destroy a monster.

Use planks and sticks to make a sword.