The key has to be activated on: http://www.thesims3.com/registeragame.html . Then you may download the game from Origin using the same login and password as on thesims3.com.
Fire up the Time Portal and send your Sims to their most exciting destination yet: The future!
Explore a bold new world, hundreds of years in the future, where your Sims can hone their Advanced Technology Skills to get the most out of advanced science and tech.
Have your Sims cruise around on hoverboards and jetpacks, traveling via monorail or tube elevator, or just get creative with futuristic hairstyles and clothing! Create and customize Plumbots with Create-A-Bot and use their “trait chips” to program them with a wide variety of customizable behaviors to demonstrate around your house.
Teleport between present and future worlds at will, and experiment with how your Sims’ actions in the present can have surprising effects on their own legacy, their descendants, and even the way of life for future Sims!
Minimal requirements:
Processor: 2.4 Ghz - Pentium IV / AMD
Graphics: NVidia GeForce 6 / ATI Radeon 9500
Memory: XP - 1 GB RAM / Vista / Windows 7 - 1.5 GB RAM
Disk space: 9.6 GB HD
System: XP SP2 / Vista SP1 / Windows 7