System
World Tree is a skill-based system, which uses custom d20 based system as well as playing cards.
Dice are divided into two types in World Tree, with two corresponding notations - simple dice, which are noted as dN (with N being the number of sides), stress dice (noted as sN), and botch dice. Most of the time, normal dice will be rolled, but when a situation arises where it is possible to succeed or fail spectacularly, stress dice and botch dice take the place of the normal dice.
Stress dice are open-ended and are re-rolled each time the roll equals the die's maximum value. A natural 1 on the first stress die roll indicates a possible botch, requiring a botch roll to confirm the botch. Botch dice are d6s; only a roll of 1 indicates a botch.
Read more about this topic: World Tree (role-playing Game)
Famous quotes containing the word system:
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—Edward C. Banfield (b. 1916)
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—C. Wright Mills (1916–1962)