First decent one with cycles…I did it a while ago but was never really thought about putting it here
I love this game. 
I don’t play the game, but from what I have seen of it, this is pretty accurate. How is it done? Just really, and I mean really,low poly models? Or there is a setting you used? Or script, or something?
I used Mineways to export my world from a .dat into a .obj, wherefrom I imported it, used an addon to convert textures to Cycles, and setup the lighting. The sun is a shadeless plane in the sky.