In this paper, a model of a game in a two-level dynamical system under unce
rtainty is constructed. In such a game, the suggested Nash-Slater solution
is unimprovable. If the players are assumed to be friendly with each other,
the construction of the total payoff guarantees that the solution is a Par
eto one. For the linear-quadratic version of the game, sufficient optimalit
y conditions are obtained for the problems of constructing the individual a
nd the total payoff.