sgame – LaTeX style for type­set­ting strate­gic games

For­mats strate­gic games. For a 2x2 game, for ex­am­ple, the in­put: \be­gin{game}{2}{2} &$L$ &$M$\\ $T$ &$2,2$ &$2,0$\\ $B$ &$3,0$ &$0,9$ \end{game}
pro­duces out­put with (a) boxes around the pay­offs, (b) pay­off columns of equal width, and (c) pay­offs ver­ti­cally cen­tered within the boxes.
Note that the game en­vi­ron­ment will not work in the ar­gu­ment of an­other com­mand.