I'm running midori on fedora 20. Finally I make flash working, but strange thing is, that while dotd is working, gem craft labyrinth and swords and potions keep writing "lugin missing". What kind of plugin it is?
Doesn't it tell you what plugin(s)? Not if you click any further on that message?
I'd try in another browser, I know nothing about this set-up. Try going over all of its finer settings, to see if you're blocking anything there. Temporarily disable any add-ons and plugins and stuff, to see if that helps eliminate possible causes. Maybe ask on a dedicated Fedora forum. And so on.
It is true that the FlashPlayer program as such and its browser plugins are not the same, I think, you'll need both. So sounds like something could be going wrong there, or maybe it's not so greatly compatible to your set-up. Or something.