No, bison is not gamey. Game tasting animals are typically stressed during the slaughter process.
It’s lighter, a bit sweeter, and has a slightly coarser texture. Bison also provides a number of health benefits and is naturally lean with less fat, calories and cholesterol, plus is rich in protein and an excellent source of zinc and iron. Because of its lower fat content, it cooks up more quickly (up to a third less time than beef!).