To create beings to "fuck around with" implies a lack.
If the universe was created by a deity what can we reason from that supposition?
One that whereas the universe is dependent, the cause of its creation must be independent. That is to say if you want a fire you need various things to be present. Fuel, oxygen, a spark etc. Remove any of the three and you can't have a fire. If a deity is the source of creation, then he must by definition be complete in and of Himself.
Anger, need for entertainment, need for accalim are all qualities of a "dependent" being. It describes an entity that lacks something, and therefore must seek it out. But a dependent being can't be the source of all creation.
So the only motive left must be selfless. That is to say something that benefits Him not at all, because that presumes he could be added to. And if you can be added then it argues an an initial lack.
The most reasonable "selfless" motivation is selfless love.
It also esxplains free will. Love is once more an act that must be freely chosen. You can be forced to eat and not be any less well fed. You can be forced to obey. But you cannot be forced to love. You must possess free will to do so. If God created only automatons incapable of independent decision making then he could surround them with physical pleasures, but they could never give or truly receive love.