It has expansion packs such as The Sims 2 University, The Sims 2 Nightlife, The Sims 2 Open For Business, and a new rumored expansion involving pets. The stuff packs include The Sims 2 Family Fun Stuff Pack and The Sims 2 Glamour Life Stuff Pack. More should come in the later years.
The Sims 2 is one of the best and most advanced games yet. From cradle to grave, it's you who plays God. You control your sims with different interactions and they have needs. You make them eat, sleep, go to the bathroom, etc. Or you can kill them. It's all up to you.
They have their own language, Simlish!
You can create their appearance and choose which clothes to wear, etc. You can mix their genes and they have their own family tree! They also can interact with other sims as well. They can get married, have children, etc. They have different life stages too. It goes like this: baby, toddler, child, teen, young adult (University Exp.), adult, and elder.
It's a very fun game and has a lot of things to do. I can't give out all the information so you'll just have to see for yourself. :)
it adds a lot of new stuff that the original didnt have, like the sims can age and theres better furniture and cool babies. best game ever with expansions and stuff packs and a website.
"Oh yeah! I love that game I have all the expansions."
"OK. I'm loading it right now."