Click on the appropriate mirror to access a pie chart of options and choose whom you wish to impregnate, if you want to impregnate everyone in relationships or if you want to make it totally random. "The Sims 3" can be seen as a prequel, taking place 25 years prior to the first game. First, if you have Sims 3 installed on your computer already, you can play Sims 3 without the CD by downloading Twallan's NO CD mod.