The most fun aspect of Sims 3 is the ability to create your own character, not only in apperance but also in personality. This flexibility gives the player much freedom in playing the game as you could bounce from a character that is very ambitious to a character that is very unmotivated. Your character (or characters if you are up for a challenge) can all vary in age as you can choose the age of your character as well. The player can even decide how many personalities they want to create all at once adding more to the fun. The game only allows up to six characters at a time, unless you want to have different save files then the amount is unlimited!