If you know how an upgrade tree works, you do not need to see this. HOW TO PLAY First, click U1, this will make you earn points. Then, once you get enough points, buy upgrades by clicking on them. Keep on going forever, this is a non-ending game.
UPDATE LOG V1.0: started with... 2 upgrades. V1.1: added upgrades 3-7, cash doesn't do anything yet. V1.2: added upgrades 8-10 V1.3: added upgrades 11 and points board option (more sense when I start with cash) V1.4: added first cash upgrade and cash board option.