I'm not a developer but I when i was bored yesterday i had an idea for a cool homebrew that you guys might want to create. I was thinking of a card battle like game where instead of pre defined monsters the players can add their on sprites or pictures to their cards. Something like a customizable but simplified Yu-gi-oh. But the biggest thing that its gotta have is ad-hoc multiplayer with other pepole who have the homebrew. Just have to figure out a fair way to give Attack points and Defense points to the cards(if you watched yu-gi-oh you know what i mean).