From the Game's Introduction:
Dicey is a roleplaying game.
Characters are represented by four or more six-sided specialised dice, each face of which represents a skill and characteristic. Succeeding in a task involves rolling dice and trying to match the required skill or characteristic on at least as many dice as the difficulty of the task.
Characters have four characteristics: Physical Strength, Agility, Mental Strength, Education. The value of each characteristic equals the number of faces for that characteristic.