Would be nice if this game would be made available in more currencies, for me as example: I never bought anything here before, So I'm unsure if I can pay the   dollar with Euros (if it'll be converted).

I'm not entirely sure how the conversion process works, but I've seen people from all around the world purchasing the game so assumed it happened automatically or through PayPal. I don't see any options on the Developer side to allow alternate currencies or not, so I hope this hasn't been a silent problem all this time.