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Message: <blockquote data-quote="mythusmage" data-source="post: 2513051" data-attributes="member: 571">Myth20 Fantasy: Core MechanicYes, the Myth20: Fantasy core mechanic is a variant of the d20 core mechanic. I took the active defense variant and expanded it to non-combat situations. The change in language came about because I'm not all that hot at technical writing.That said ...Myth20 Fantasy: Core MechanicTo find out if an action succeeded or failed roll a d20 and add any bonus or subtract any penalty. Compare the modified die roll to the action's difficulty. If the modified roll is equal to or better than the difficulty the action succeeds. If the modified roll is less than the difficulty than the action fails. But see opposed actions for an exception.There are two types of rolls, opposed and unopposed. Each is explained below.In opposed rolls two parties are involved. Sometimes two players, more often a player and the GM. One is the "attacker", the other is the "defender". (Why the quote marks? Sometimes opposed rolls don't involve combat.) Both parties roll a d20 as normal and add or subtract bonuses or penalties as appropriate. If the attacker's modified roll is better than the defenders, the attacker wins. If the defender's modified roll is equal to or better than the attacker, the defender wins. This is an exception to the standard mechanic.An unopposed roll works according to the standard mechanic against a pre-set difficulty. Unopposed rolls are used for such things as picking locks, opening doors, appraising items, casting spells, and the like.In the case of an unopposed action the difficulty is set by the GM according to the circumstances. The more difficult the situation, the more difficult the attempted action. Guidelines to setting difficulty for unopposed actions is presented in the skills chapter.</blockquote>

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