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True20 Adventure Roleplaying
Designer(s) Steve Kenson
Publisher(s) Green Ronin Publishing
Publication date 2005
Genre(s) Universal, Fantasy, Science Fiction, Horror
System(s) True20

True20 is an award winning[1] Role-playing game system designed by Steve Kenson and published by Green Ronin Publishing. The system was first published as a part of the Blue Rose role-playing game before being published as a stand alone universal generic role-playing game, True20 Adventure Roleplaying.


The True20 system was originally used in Green Ronin's award winning[2] Blue Rose,[3] which itself was based on their multiple award winning Mutants & Masterminds RPG.[4] Later that year, Green Ronin released a PDF distillation of the Blue Rose rules, with an appendix of some modern-era rules, as a generic form of the game. This was followed by an expanded hardcover release in 2006.[5] A revised softcover rulebook, combining the rules section of the True20 Adventure Roleplaying book with the True20 Companion was released April 25, 2008.[6][7]


The original setting for the system was the Blue Rose in which the system first saw print.[3] In its generic role-playing game, the original hardcover printing of the True20 Adventure Roleplaying book included four sample settings. These were chosen among publisher submitted setting with the winners announced in Dragon Magazine:[8]

  • "Caliphate Nights", a fantasy version of the golden age of Islam, circa 800 AD. A full-color stand-alone hardcover was released for the setting at Origins 2006.[9]
  • "Lux Aeternum", a swashbuckling space opera.
  • "Mecha vs. Kaiju", in which giant robots protect Japan from giant monsters.[10]
  • "Borrowed Time", a setting of Kung Fu action and gunplay against a backdrop of time-controlling conspiracies.

The Revised Edition has four different settings:

  • Fantasy Adventures
  • Space Adventures
  • Horror Adventures
  • Modern Adventures

A follow up volume, True20 Worlds of Adventure includes five additional settings:

  • "Agents of Oblivion"
  • "Blood Throne"
  • "Land of the Crane", an Asian fantasy setting.
  • "Nevermore"
  • "Razor in the Apple", a horror setting in which kids face monsters lurking the neighborhood, inspired by films such as The Goonies.


Utilizing the Open Gaming License, True20 is derived from Wizards of the Coast's d20 System. Differences from the parent game include the following:[11][12]

  • There are only three character classes, referred to as roles: warrior, adept and expert.
  • A single 20-sided die is used for each roll.
  • Ability scores are given as simple modifiers (+1, +2, etc.) rather than as a statistic in the range from 3-18 (which in some other systems, such as d20, would then be converted to simple modifiers).
  • There are no class-specific or restricted skills, thus characters of any role can have any skill.
  • New feats are available at each level.
  • Magic spells are treated as feats and do not have "levels".
  • Instead of hit points, characters simply experience "damage conditions" like that of Mutants & Masterminds.
  • Instead of experience points, characters automatically increase in level at the Narrator's discretion, usually after one or two adventures.

Licenses and third part products[edit]

Since before its release, the True20 system has been open to users under the terms of the Open Gaming License.[13] To use the True20 logo though required a separate license and license fee purchased from Green Ronin. Several companies have taken advantage of this to produce their own True20 titles.[9][10][14][15]

On April 12, 2008, Chris Pramas of Green Ronin Publishing announced a new, free, licensing agreement with third party publishers to produce True20 products. Details were posted on the company’s website[16] and forums[17] and met with praise from publishers, freelancers and players alike.[18]

See also[edit]


  1. ^ "Ogre's Choice 2006". Ogre's Cave. Retrieved 2008-04-11. 
  2. ^ "2005 ENnie Awards Archives". ENWorld. Archived from the original on 2008-01-20. Retrieved 2008-04-11. 
  3. ^ a b Gray, Tim (2005-07-11). "REVIEW OF TRUE20 ADVENTURE ROLEPLAYING". RPGNet. Retrieved 2008-04-11. 
  4. ^ Grigsby, John (2006-09-20). "True20 Adventure Roleplaying Review". d20 Magazine Rack. Retrieved 2008-04-11. 
  5. ^ Richeson, Christopher (2006-06-23). "REVIEW OF TRUE20 ADVENTURE ROLEPLAYING" (Review). RPGNet. Retrieved 2008-04-12. 
  6. ^ Message by Chris Pramas concerning 2008 True20 products
  7. ^ True 20
  8. ^ Strohm, Keith (February 2006). "True20 Adventure Roleplaying: Worlds of Adventure". Dragon (Bellevut, WA: Pazio Publishing). 30(9) (340): 19. ISSN 1062-2101. 
  9. ^ a b "Paradigm Concepts News : d20 / True20 Archives". Paradigm Concepts. Retrieved 2008-04-11. 
  10. ^ a b Wright, John; Todd, Michael. "Mecha vs Kaiju". Big Finger Games. Retrieved 2008-04-11. 
  11. ^ "True20 Adventure Roleplaying". Green Ronin. 2005-06-16. Retrieved 2008-04-11. 
  12. ^ Schneider, Wesley (December 2005). "First Watch: Natural 20". Dragon (Bellevut, WA: Pazio Publishing). 30(7) (338): 20. ISSN 1062-2101. 
  13. ^ Baichtal, John (2008-06-09). "True20: D&D With a Twist". Review. Wired. Retrieved 2008-06-10. 
  14. ^ " – True20 titles". One Bookshelf. Retrieved 2008-04-13. 
  15. ^ Robertson, Megan (2007-07-20). "RPG Resource – True 20" (Review/Analysis). RPG Resource. Retrieved 2008-04-13. 
  16. ^ Pramas, Chris (2008-04-12). "Licensing True 20" (website). Green Ronin Publishing. Retrieved 2008-04-12. 
  17. ^ Pramas, Chris (2008-04-12). "True 20 Licensing details" (post). Green Ronin Publishing. Retrieved 2008-04-12. 
  18. ^ "True20 Licensing Fee to Go Away" (Announcement). RPG Net. 2008-01-14. Retrieved 2008-04-13. 
  • Steve Kenson True20 Adventure Roleplaying (Green Ronin Publishing, 2006) ISBN 1-932442-57-X
  • Various Authors True20 Worlds of Adventure (Green Ronin Publishing, 2006) ISBN 1-932442-65-0

External links[edit]