Freecodes
From Future Skill
In Freecodes, the programmer is free to do whatever she or he wants to do. Since there is not a specific problem to be solved, a Freecode is not rewarded with any achievements or experience points.
Example of freecodes could be a graphics demo, a utility for generating pictures, or to do some kind of simulation. The sky is the limit!
Create your own Freecodes!
On Future skill it is possible to create your own Freecodes! this is done with the freecode creator that you can access from the create option.
Read more about the Freecode creator here: freecode creator