A activity, which is usually performed by two or more gamers, is known as a multi player activity. The gamer may be enjoying independently with another player as an challenger or may form groups to perform against each other. In theory discussing, it is quite difficult to evaluate many separate gamers enjoying in only one multi player activity as it may result in coalitions.
Keeping in mind that the coalitions between gamers are actually prohibited, David Nash had proven that a constant solution can be offered in games with several gamers. Nobel award was also granted to him for business economics for the expansion of Von Neumann's concept of zero sum games. This constant technique offered by him is known as Nash stability. The situation becomes more complicated if the collaboration among the gamers is permitted. The concepts offered by Nash have certainly some effect in the area of business economics, state policies etc.