Challenge: Make a card game that uses standard playing cards.
The play testing went pretty well. I found that it took any given group a couple of rounds to find their footing, especially if no one has played before. Even 1 person that has played before accelerates the process a lot. Once someone played a few rounds, they started doing some really strange and unexpected things. The rules are largly unchanged. I downed the minimum bid to 3 instead of 4, but you could even start it at 1. The winning bidder still has to come up with 3 rules for themselves, so any additional rules made up by vengeful players are usually pretty nasty. Anyway. here are the rules in PDF form: