Minecraft, and that is to defeat the Ender Dragon. This is the toughest google minecraft game built in to the game.

The goal is to travel to The End and defeat the Enderdragon. Don’t worry, you can go back to your world when it’s done! First you will need to find a Stronghold, then activate the End Portal before finally travelling through to meet the ultimate challenge. If you can defeat the Ender Dragon, you will be able to explore the rest of The End! Find A Stronghold Have you already found a Stronghold?

If so, you have a head start. If you haven’t found a Stronghold yet, make some Eyes of Ender. Pack your equipment and prepare for an overland adventure. Go outdoors and throw an Eye of Ender into the air. It will move in the direction of the nearest Stronghold, then fall to earth.