The only games you'll ever need

[SvennoJ]

ps3

lbp, 4 player and can make your own levels

modnation racers, same as lbp

motorstorm pacific rift, more 4 player fun (or mario kart wii if console is not a problem)

sports champions for some healthy competition

and probably some retro arcade games collection disk for even more multiplayer fun

Now if I were alone it would be quite a different list.