d20 Modern is a modern fantasy role-playing game system designed by Bill Slavicsek, Jeff Grubb, Rich Redman, and Charles Ryan. The system's core rulebook was published by Wizards of the Coast on November 1, 2002; by 2006, ten additional supplements were released. The game is based on the d20 System and the Dungeons and Dragons 3rd Edition ruleset. It includes various campaign settings along with the tools to build campaigns in modern/contemporary settings. History Wizards released d20 Modern in 2002 while the company was overhauling its Star Wars role-playing game. Wizards then expanded on the game, developing one of its settings into a sourcebook, the Urban Arcana Campaign Setting (2003). Wizards then extended this development of d20 even further, with the science-fiction game d20 Future (2004) as well as the historical game d20 Past (2005). Wizards ended this line in 2006 by updating their classic campaign setting Dark•Matter for d20 Modern. Alterations to the d20 System Basic classes In d20 Modern, each character is referred to as a hero. All heroes start with a first-level, basic class. Each basic class corresponds to one of the six ability scores in the d20 System. Each basic class has its own set of skills, feats, talents, saves, hit dice, wealth bonus, and so on. A beginning basic hero will become a more specific advanced-class hero at later levels, depending on which abilities a player favors for their character. The six basic classes are: The Strong Hero, based on Strength (STR). These heroes are brawny, and they greatly favor melee combat. The Fast Hero, based on Dexterity (DEX). Nimble, quick, and able to evade most incoming attacks. The Tough Hero, based on Constitution (CON). Difficult to take down and can resist most sicknesses. The Smart Hero, based on Intelligence (INT). A know-it-all hero with an edge in brain-intensive skills. The Dedicated Hero, based on Wisdom (WIS). A highly intuitive and vigilant hero. The Charismatic Hero, based on Charisma (CHA). A hero with personal magnetism and a way with words. Advanced Classes In addition to basic classes, there are also advanced classes. Similar to basic classes but with requirements to fulfill. There are 14 advanced classes for which a player character may qualify over time: Advanced classes can be less or more easily achieved depending on the hero's basic class. For instance, a Tough Hero can be an excellent candidate for Bodyguard or Daredevil, but