Simple game, a person makes a wish. Anyone else can “corrupt” it. Then that person makes a wish of their own, and the cycle continues.
For example:
Person A: I wish I had 1 million dollars.
Person B: Wish granted, but they are Monopoly dollars. My wish: I wish I could fly.
Person C: Wish granted, but sustaining flight requires 500 calories per minute. My wish: I wish I could teleport.
etc.
Wish granted. Stock prices go up the harder you squint but conversely plummet when you don’t, leading to an apocalypic market crash that can only be avoided by frequent squinting throughout the day. On the plus side markets close after 4pm so you do get to rest you eyes a bit before the next day :P
I wish I had a notebook, that whatever I drew in it would immediately come into existence in front of me.
Wish granted. You get the notebook***.
I wish I could stop time.
***accompanying magic pencil granted separately.
Wish granted. But once you use your powers for the first time you realize that you cannot unfreeze time, and so you (along with the rest of the universe) spend eternity frozen.
I wish I could cure any ailment with a single touch.
Granted. No one in your country stays sick. There is an explosion in the elderly population. The pension fund runs out. Millions starve to death.
I wish I am all-knowledgeable.