Editing Dungeons & Dragons Glossary (section)

=== D ===

; d20
: Either a 20-sided die, the d20 System, or the d20STL. The last two are often confused.

; d20 System
: The system underlying 3E, v.3.5, and 4E. See OGL, GSL.

; d20STL
: '''d20 System Trademark License''' - a license from Wizards of the Coast that allowed third party vendors to use certain trademarks and logos (most notably the "d20" logo), and include a claim of compatibility in their products. During the d20 boom from 2000 to 2003, most third party d20 System products used the d20STL in conjunction with the OGL. The bust following WotC's v.3.5 led many third party vendors to abandon the d20STL, which was ultimately revoked by Wizards of the Coast in 2008 in favor of the GSL.

;DDI : '''Dungeons & Dragons Insider''' (4E) - the online subscription service offered by Wizards of the Coast, including ''Dragon'' and ''Dungeon'' magazines and the Character Builder.