That's the cheapest I can send something to Greece I am afraid. Unless you want a whole load of games its not really worth while.
I don't know why you say that this is the cheapest when recently I acquired a Mega Drive Console from the UK (which is a lot bigger and heavier than 2 games) and the shipping was done via UPS and I paid £20 so how come your shipping with Royal Mail be more expensive than UPS that is beyond me. Anyway, I'm not here to argue your shipping price just to say that I find it expensive and sadly I can't purchase any games from you. Have a nice day.