You can typically purchase The Sims 3: Generations through several official and reputable channels:
: Subscribers can play The Sims 3 and select expansion packs as part of their monthly or yearly fee. The Sims 3 Generations Free Download
Generations focuses on deepening the simulation of various life stages rather than adding a new world. You can typically purchase The Sims 3: Generations
To run Generations, your PC or Mac must meet these minimum specifications: The Sims 3 Generations Free Download