NHL 15 is a popular sports simulator dedicated to hockey. In the new part of the series, for the first time in the history of sports gaming, a physics system was used for all 12 players at once. Everyone on the ice is constantly subject to all the laws of physics, resulting in incredibly realistic collisions and other elements of a hockey game. Also, the changes affected the puck, because it is one of the most significant things in the simulator. Its physics have been redesigned so that you feel every contact with it, and throws, hits and passes correspond to real-life sports situations. The intelligence of opponents has also been improved. Each of them now sees the situation on the ice and chooses one of the options. They try to anticipate the moment of impact, the speed and zone of the pass, team combinations and much more.