The Xbox series of consoles is home to some of the highest-regarded video games of all time, from the legendary Halo series to the iconic Gears of War games. Since the original Xbox debuted in 2001, it has been a mainstay of gaming culture. A key part of the Xbox consoles' success is its top-of-the-line exclusive titles that are playable on the Xbox but are not available on the mainline Sony or Nintendo consoles.
Source:https://www.cbr.com/xbox-exclusive-games-playstation-switch-wishlist/