In short No.
Many new Video Games, especially RPG's, are trying to make the player feel like they have complete freedom in what they do, but in the end its impossible to make a video game where you can literaly do anything that you could in real life.
The closest are the RPG's that are somewhat free-form and offer side missions and challenges like the GTA series and Red Dead Redemption. Next you can visit the Sims until you decide squareville is the pits and you're reday to move back to Liberty City.
imvu
yes hack offline games online games will not work due to the fact there online
If by online games you mean online multi-player than yes
no
Free means it does not cost anything.
Yes Omg Rofl
One is Roblox.com you can build anything you want!
Anything from checking e-mails to playing online games
his hobbies are playing piano and online games.
Tetris, 2048, Bejeweled and others are all games you can find on the web. If you mean "online multiplayer", I recommend Portal 2.
Try searching for secret builders, mofunzone.com... There are tons of free online games on the internet! You'll probably need adobe or flash to play some of the games, but no need to download or install anything.
club penguin, I cant really think of anything else