6 for the PS3.
Two players
four players
From what I know it is 4 players for both ps3 And xbox360
256 players maximum can play in one match.
No there is not a PS3 version of the Sims game
No, PS3 players cannot play with Xbox 360 players online.
No, but you can link the Vita to the PS3 console
1 - 4 players max in a game
No the Sims games for the PS3 have to be designed to play on all but the early 4 USB port PS3 consoles or they will not work
The Sims 3 Seasons is only available for Microsoft Windows and OS X, so it would be impossible to play it on a PS3.
if you have an xbox 360 or ps3 you can play online multiplayer