The Sims 3, a life simulation video game developed by Maxis and published by Electronic Arts, was first released for Microsoft Windows and Mac OS X.
The first expansion pack for The Sims 3, World Adventures, was released, allowing players to travel to new locations and find souvenirs and skills.
Ambitions, the second expansion pack for The Sims 3, was released, adding new careers and gameplay features.
Seasons expansion pack was released, adding weather effects and seasonal activities to the game.