During the intervening years, Alabama was the site of some of the most defining events of the civil rights era. These events transformed the state and profoundly changed America. Black protest started long before the civil rights movement emerged and continued long after it stopped receiving front-page headlines.
Also, you can play versus(and survival, if you get the GOTY edition) offline by selecting join friends, the pressing X to start your own lobby, it tricks the game into letting you play the modes. Why there wasn't just an offline option on the main menu is beyond me.
Of course steam account and Dota 2. I suggest you to update Dota 2 to the latest version because steam won't run in offline mode if your Dota 2 need to update. First of all start Steam on offline mode.Choose menu Steam on the top left, and then choose Go Offline. - Unfair. What are you going to do if you want to play Dota 2 but you do not have internet connection. I will show you how to play Dota 2 offline.