After 2 hours of not being able to sleep, i finally got an idea.

You only have 1 ‘money’ and one day to but christmas gifts for your family.
So you have to try  to find/earn money, so that you can make them happy.

You get a wish list from each, and then you have to fulfil their wishes, as best you can.

Game Engine: Unity 2D

Logic: C#

Graphics: Will try Pickle, and Gimp