This is a variation on drinking games that doesn't involve actual drinking.
In this case, rather than take a drink, you give 10 CE to a random friend.
To play, stand in haven and wait for certain thing to happen.
I'll start:
Spend 10 CE if:
-a noob begs for CE/crowns
-a broke guy tries to sell mats
-someone open a lockbox
-more than one skolver clone is present
If I had one Crown every time I saw one of these things, I would be a millionaire already.