Riddle me this

Elementary my dear
it’s just a game that’s all.
Such it is, and so
It is such
Leaving a minuscule difference between
Too little and too much.
If you desire it to be this
You invariably end up with that
Perchance you’ll dream
But in reality fall flat.

By and by you might just win
Rise to the top and be crowned a king.
Till then good fellow,
All I can say is “Adieu”
Flee I must, this game was never designed for two