I bought the CounterStrike and CounterStrike: Condition Zero bundle on Steam yesterday. I proposed a friend of mine to download it as well, but she refused, as she already had bought CounterStrike: Source. Now, is it possible for us to play online (non-LAN, we live quite distant from each other), without having to buy the other's game?
If we do have to, which one of the three games would you suggest for two... "Non experienced" players?
One last question, as I've never dealt with online games on Steam before: assuming we can connect to each other, what would I have to do in order to set up a private game? Do I need a server?
Is it possible to host one on a Mac?