In Minecraft: Story Mode you play as Jesse as you tackle a perilous adventure across the Overworld.
So you might still be asking What is this game? Minecraft: Story Mode is an adventure game set in a Minecraft world. It is a five-part episodic series that will take you to the Nether, the Farlands, the End, and beyond! You will drive how the story flows through the decisions you make: what you say to people (and how you say it), and what you choose to do in moments of thrilling action.
If you have’t seen the trailer have a look here.