d20systeem

The d20 System is a role-playing game mechanic derived from the rules of Dungeons & Dragons, specifically the 3rd edition. It is characterized by the use of a twenty-sided die (d20) as the primary randomizer for resolving actions. When a player attempts an action with an uncertain outcome, such as attacking an opponent, attempting a skill check, or making a saving throw, they roll a d20. This roll is then modified by various character abilities, skills, and situational factors. The result is compared against a target number, known as the Difficulty Class (DC) or Armor Class (AC), to determine success or failure. A higher roll generally indicates a better chance of success. The d20 System emphasizes a modular design, allowing game designers to adapt and expand upon its core principles to create a wide variety of game settings and genres. Many games outside of traditional fantasy have utilized this framework, showcasing its versatility. Its widespread adoption led to a period of significant innovation and growth in the tabletop role-playing game industry.