Ludimo's a true math adventure

Ludimo is a maths game for children. When I got this assignment, all I had to work with was "Child friendly environment where digging and building is the main goal". Since I had only about 4 days and there was absolutely nothing to work with (there was a prototype of the game tho), I had to design a variety of characters that could be in the game together with a whole setting which would be the game world.