Yes there are good free Sims games online. If you type in SIMS free on Google you'll get search results for a few places where you can download older Sims games or play Sims-like games online for free.
Yes if you are on Facebook you can go onto The Sims Social.
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The Sims 3 is not free, but there are apps like Shazam, Facebook, TweetDeck, and some games and other apps that are.
I dono if you can get more mature than The Sims to be honest! But there is a site that lists all the games like The Sims and directs you to where you need to be to play them. All of them are free to play. I will post the link! Hope this helps.
I'm not aware of any places were you can download the sims 2 but I'm wondering if you can download expansion packs for free and it's LEGAL
There aren't any fairy's in any of the Sims games.
There is no way to get The Sims 3 University for free legally - any other way is considered as pirating and is illegal.
Yeah, if you have an iPod you can play Virtual Family and if not you can play Sims(:
On the sims 2 no you can not. Or in any other sims games.
There are no mermaids in any of the Sims games.
No :)