A character's Class determines their starting Health and a set of Keywords (two Classy and one Specialization). Players also choose a further personal Keyword. Starting characters are Level 1.
Tests are performed by rolling a number of d6 per character Level. A task that involves a Specialization counts rolls of 3+ as successes; a Classy roll counts 4+ as successes; a Non-Classy roll counts 5+ as successes.
Through play, characters gain Advancement Points, five of which can be converted to gain a Level (gain a new Class Keyword or upgrade a Classy Keyword to a Specialization; also gain 2 Health).