Posted November 25, 2012
Depends of the game, for example in Heroes 6 you have the Dynasty weapons, in Anno you have the Ark upgrade that is only enabled if you are always online, etc... the are lot of "debates" among players whenever or not those features are fully optional or negatively impact the solo experience, but in the end if you really want the "full" experience even in single player you need to be online.
Post edited November 25, 2012 by Gersen