Game: Zoo Paradise

Some social game genres explode, all but taking over Facebook within a matter of weeks. Aquarium games, farm sims, and city builders have all followed this pattern. Zoo sims like Zoo Paradise are a different story entirely. This genre has built itself up slowly over time, largely ignored by some major developers. Zoo sims generally involve running a virtual zoo by putting animals in habitats, then maybe playing mini-games or doing little jobs to keep your zoo clean during the downtime. At heart they're tycoon games that prey upon the Internet's love of adorable animals. Zoo Paradise is probably the best zoo sim to date.