I came across this nice innovation that is inspired by minecraft zelda and deablo. Its a non linear RPG and looks to have great potential. So far I have a level 4 frogman mage.

Website https://picroma.com/cubeworld

A yogcast http://www.youtube.com/watch?v=ZjUxFAu4tjQ

You can purchase the alpha but... they have been getting DoS attacked so you may have to wait.