Just as you do in real life, the digital people who occupy the worlds of The Sims 4 have needs that have to be fulfilled, or else they won't be happy and something bad will probably happen. Potentially something really bad, like dying. Fortunately, meeting your sims' needs is not the most complex affair--our digital people aren't quite so complicated as real people are. Still, a little knowledge goes a long way, and you'll find more than a little knowledge below as we break down how needs...