Rules
Encountre is built upon the d20 System, a role-playing game system published in 2000 by Wizards of the Coast originally developed for the third edition of Dungeons & Dragons.
To resolve an action in the d20 System, a player rolls a 20-sided die and adds modifiers based on the natural aptitude of the character (defined by six abilities, Strength, Dexterity, Constitution, Intelligence, Wisdom, and Charisma) and how skilled the character is in various fields (such as in combat), as well as other, situational modifiers. If the result is greater than or equal to a target number (called a Difficulty Class or DC) then the action succeeds.
For more information, refer to the System Reference Document (SRD), which was released under the Open Game License (OGL) as Open Game Content (OGC), which allows commercial and non-commercial publishers to release modifications or supplements to the d20 System without paying for the use of the system's associated intellectual property, which is owned by Wizards of the Coast.
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