Thought I'd give this topic a bump. I know Oooohrah64 suggested "Saveable Game Play" and thought I'd throw in some others (absurd as one of them may be) .
-cached game play
-temporal-shifted server-saved asynchronous game play (how's that for rolling off the tongue
-the game tomb or the game vault (the place where saved games are stored)
-the game bunker (the underground fortification, not the golf sand trap)
Let's hear some more ideas!