A gatcha Machine would be a small machine the player could place in there casion, in it they can add all the items from there vault except for the items you place in auction, they can set a price and when another player clicks on it they can but ( for chips) one item from the machine, the machine can then deliver to the player one random item from the machine to there vault. RPG can charge the machine owner 1 % fee or something small,

There are often times when players have to many items in there vault and need to git rid of them , they can of course sell them back, but it would be more fun to have a gatcha machine. Just an idea I had and thought it would be fun,