hmm, it's hard to think up games since I'm not really sure if they are flash or not.
But I think you could do a hide-and-seek game, card games (maybe a Rescreatu trading card game) simple click adventures (altough those would turn old, but if you could have a random element, it'd stay fun).Tetris, an all time favorite tle="Smile" /> Strategic games, a rescreatu board game where you need to click to move your character, something like chess but a lot more fun. (maybe combine it with the trading card ID, move your character to the correct position, f.e, the playboard is divided in forest, water, desert and so on, there you can unlock the power of one of the cards you got in the beginning of the game (so it's a chance game) or the cards you buy from users(but that wouldn't make it fair to newer players)anyhow, you need the correct distance + region to use an attack or spell and try to defeat another player or a computer generated game.Sweet ^_^
I'd really like to see something with a bit more interaction, I'm not a big fan of quests and the rest of the games are mostly one click-games...
Why aren't flash games an option, I never used flash myself, but it can't be that hard? Or is it more a problem of taking up space?