Storytelling System

The Storytelling System is a role-playing game system created by White Wolf, Inc. for the Chronicles of Darkness (formerly known as the New World of Darkness), a game world with several pen and paper games tied in. The Storytelling System is largely based on the Storyteller System, the rule set used for White Wolf's other, older game setting, the World of Darkness (for a time known as old or classic World of Darkness).

While on the road to Gen Con '90, Mark Rein·Hagen came upon the idea of a new game design that would become Vampire: The Masquerade. Tom Dowd, co-designer for Shadowrun, worked with Rein-Hagen to adapt the core mechanics from his previous game success to use d10 instead of d6 for calculating probability.

Over the next few years, several games were published under this rule set.

The Storyteller System was discontinued in 2003 after completing the metaplot building up since Vampire: The Masquerade. It was replaced by the Storytelling System, a more streamlined rule set. The Storytelling System premiered in The World of Darkness in 2004.

Games using variants on this set of rules include Exalted, Scion and the Trinity line.

Storytelling System characters are built with character points that represent a Dot on their character sheets. Each Dot represents a ten-sided die (d10). The more Dots in an Attribute or Skill, the better the character is at those abilities. A set of dice representing the Dots in an Attribute or Skill forms a Dice Pool that the character uses to see if he/she succeeds or fails at specific tasks.

...
Wikipedia