Sports and fitness games bring exercise into projected, screen or simulator formats. Players run, kick, climb, swing or ride while a game tracks their moves. Gyms, schools, sports museums, play centres and event organisers buy them to keep people active and entertained. Compare the space and ceiling height, the number of players, the level of physical effort, and whether the product suits children, adults or both. A climbing wall needs a strong structure, while a projected wall game needs only a clear wall.