the core game mechanic of "mspe" is the saving throw. unlike "dungeons & dragons"' saving throws, those in "mspe" are not used solely to escape danger. instead, the "mspe" saving throw is an attribute roll. the gamemaster determines the difficulty of the saving throw, and the player then rolls two six-sided dice and adds the value of the relevant attribute of his/her character. "mspe" saving throws can also be modified by skills, in which case the level of the skill being used is also added.