To access the user modifications and tech support sub-forums you need to register your game as explained here: http://forum.paradoxplaza.com/forum/showthread.php?523132-***Why-you-should-register-your-game-and-HOW***
I am on a Mac and Steam has still not give me my CD-KeyI don't have access to a PC. Any way I can get my game registered? What if I email Paradox my Steam order# and they register my game? Steam is just so unresponsive.