How about CROC-Slots ?
Slots has been done a trillion times D:
Any card games? Or something that doesn't use dice or cards at all? Be creative!
Ok how about something like JezzBall
https://en.wikipedia.org/wiki/JezzBall
Or Even Pong
https://en.wikipedia.org/wiki/Pong
No idea how someone would "bet" on JezzBall.
But for Pong...1v1 Pong could be fun!! Good idea there.
How does the house win money?
If players end up in a tie after 10 minutes, does the house win?
I suppose you could have the house win by default if the game goes over a certain time limit with nobody winning.