In this chapter, we introduce one-shot Mean-Field-Type Games (MFTG) in which the decisions are taken once. These games are distinguished by their unique characteristics, where the (instantaneous) payoff functionals not only hinge on the action profiles adopted by the decision-makers but also on the distribution of these action profiles. This added feature results in the emergence of nonlinear expected payoffs in the product measure encompassing the strategies made by all decision-makers involved.