The main objective of this article is to define and explain the theoretical approach which is mainly concerned with the conflict situation between market actors; such an approach is often called "game theory". This study will focus on critically examining the theoretical and practical implications related to game theory and the strategic decision-making process. Economic issues related to the application of game theory in the real environment will also be addressed. Game theory is based on assumptions and observations made by many academics and non-academics in the past, but it only began to receive proper scientific attention and was placed in an economic context in the 20th century. These will be explained in more detail in the next section. Game theory is seen as a tool for explaining and analyzing strategic interaction problems (Eatwell, Milgate and Newman, 1989). As noted previously, this theoretical approach applies primarily to conflict situations, but it also considers situations in which the interests of actors are compatible, but due to communication problems it is difficult to determine the appropriate course of action. Gaming is a decision-making situation that involves more than one entity (player). Depending on the strategy adopted, the player receives a specific payment, measured in units of utility (covering both monetary and qualitative units, such as convenience or satisfaction. A zero-sum game is the game in which the A player's fixed gain is the sum of the losses. The properties and implications of the zero-sum game were studied by John von Neumann in the 1920s, who determined that each of these games always had an equilibrium point ( Dixit and Nalebuff, 1993) ..... in the middle of the article ...... behave unpredictably (Aumann, 2000, p.139) emphasized that “full rationality is not. such a bad hypothesis, it's a kind of idealization; the ideas of ideal gas or frictionless motion As Ariel Rubinstein said, "game theorists have made too many claims about its relevance" (Interview); with Ariel Rubinstein on Game Theory, 2012). Game theory cannot be considered a "philosopher's stone", and this is because the real market, society and humanity are an open and open system. creative, to which it is impossible to match a finite set of rules, nor to obtain input data good enough to guarantee the effectiveness of the methods. of game theory will act with mathematical precision.