2K10 PC is $13.39 until Jan 3rd on Steam

Mega Holiday Sale means about six bucks off.

http://store.steampowered.com/app/40920/

Cool, but it's actually €13.39. Euro that is

It's not "actually" that. It is $13.39 in US dollars. They do $1 US = 1€ however, which is on ongoing point of contention with those who use the currency.