The 2D20 System is a system and toolset for creating and playing games that emulate and celebrate action-packed, story-driven fiction. It thrives when paired with a setting or theme where competent, determined, often larger-than-life protagonists face tense and perilous situations, and where collaboration and teamwork are vital to success.
It aims to pair the action of the story with a degree of mechanical impact, so that what happens in the narration has direct consequences in the game, and vice versa, and relies on players and Gamemaster alike being active participants in both the fiction and the gameplay.