Here are some of the best pet modifications for all of you pet lovers out there because, of course, you can't play The Sims without mods to improve your gameplay. Fortunately, The Sims 4's Cats and Dogs expansion pack lets you own your preferred pet animal. If you enjoy having pets in real life, you'll probably enjoy doing so in games as well. Top 15 Sims 4 Best Pet Mods For Pet Lovers