So I got Civ V yesterday during the steam sale and installed it and everything, but when I tried to play with my girlfriend, it said "version incompatibility", or something of the sort.
Do I need to update Civ? Her's is completely up to date. Also note I'm running a mac, so does this mean I get the updates later?
And yes, playing on a Mac means I'm new to gaming on computers, so if this is a really stupid question, yo dog, I don't know this shit.