History TabletopGame / D20System

12th Jul '16 10:24:21 AM Koveras
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The core mechanic of the d20 system is rolling a twenty-sided die (the eponymous d20), adding a "modifier" to the result, and comparing that to a "difficulty class" (DC) to determine whether the action was successful or not. The d20 provides randomness, the modifier represents the character's skill, and the DC represents the difficulty of the action being attempted. If the total result (d20 + modifier) is greater than the DC, then the action succeeds. Modifiers are dependent on the character's stats, and both modifier and DC may be altered by situational bonuses or penalties (for example, if your target is lying prone, ranged attacks become harder, but melee attacks become easier). The most important modifiers are generally TheSixStats, at least one of which will be applied to almost every roll, but other check-specific stats will also be included. Also of note is the "opposed check" -- when two characters directly oppose each other (one character tries to sneak past another, for example), then both will make the relevant skill check (eg, stealth vs. notice), and the higher result wins.

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The core mechanic of the d20 system is rolling a twenty-sided die UsefulNotes/{{di|ce}}e (the eponymous d20), adding a "modifier" to the result, and comparing that to a "difficulty class" (DC) to determine whether the action was successful or not. The d20 provides randomness, the modifier represents the character's skill, and the DC represents the difficulty of the action being attempted. If the total result (d20 + modifier) is greater than the DC, then the action succeeds. Modifiers are dependent on the character's stats, and both modifier and DC may be altered by situational bonuses or penalties (for example, if your target is lying prone, ranged attacks become harder, but melee attacks become easier). The most important modifiers are generally TheSixStats, at least one of which will be applied to almost every roll, but other check-specific stats will also be included. Also of note is the "opposed check" -- when two characters directly oppose each other (one character tries to sneak past another, for example), then both will make the relevant skill check (eg, stealth vs. notice), and the higher result wins.
30th Jun '16 4:00:23 PM Anddrix
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* ''{{TabletopGame/Pathfinder}}'' by Paizo Publishing is notable for being made specifically in response to Wizards building a new ''Dungeons & Dragons'' edition. ''Pathfinder'' is written to be compatible with D&D v 3.5, and fix some of the remaining flaws in the system, though the quality of its changes is a [[BaseBreaker contentious subject among fans]]. Successor to the 3.5 throne, it is highly successful commercially and widely supported by third parties.

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* ''{{TabletopGame/Pathfinder}}'' by Paizo Publishing is notable for being made specifically in response to Wizards building a new ''Dungeons & Dragons'' edition. ''Pathfinder'' is written to be compatible with D&D v 3.5, and fix some of the remaining flaws in the system, though the quality of its changes is a [[BaseBreaker contentious subject among fans]].fans. Successor to the 3.5 throne, it is highly successful commercially and widely supported by third parties.



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16th Dec '15 6:16:15 AM Morgenthaler
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* ''[[ThirteenthAge 13th Age]]'' uses a variant of the d20 system that draws in some elements of 4th Edition D&D, which is to be expected considering the co-designers are Jonathan Tweet (one of the lead designers of 3rd Edition and the d20 system) and Rob Heinsoo (one of the lead designers of 4th Edition. Also has elements of storytelling systems, such as powerful icons in the setting, and skills based on the characters' backgrounds.

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* ''[[ThirteenthAge 13th Age]]'' ''TabletopGame/ThirteenthAge'' uses a variant of the d20 system that draws in some elements of 4th Edition D&D, which is to be expected considering the co-designers are Jonathan Tweet (one of the lead designers of 3rd Edition and the d20 system) and Rob Heinsoo (one of the lead designers of 4th Edition. Also has elements of storytelling systems, such as powerful icons in the setting, and skills based on the characters' backgrounds.
29th Jun '15 10:33:00 AM oknazevad
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* ''[[ThirteenthAge 13th Age]]'' uses a variant of the d20 system that draws in some elements of 4th Edition D&D, which is to be expected considering the co-designers are Jonathan Tweet (one of the lead designers of 3rd Edition and the d20 system) and Rob Heinsoo (one of the lead designers of 4th Edition. Also has elements of storytelling systems, such as powerful icons in the setting, and skills based on the characters' backgrounds.
28th Jun '15 7:43:50 PM oknazevad
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* ''{{TabletopGame/Pathfinder}}'' by Paizo Publishing is notable for being thought of as made specifically in response to Wizards building a new ''Dungeons & Dragons'' edition, when in reality it was in production before the announcement. ''Pathfinder'' is written to be compatible with 3rd Edition, and fix some of the remaining flaws in the system, though the quality of its changes is a [[BaseBreaker contentious subject among fans]]. Successor to the 3.5 throne, it is highly successful commercially and widely supported by third parties.

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* ''{{TabletopGame/Pathfinder}}'' by Paizo Publishing is notable for being thought of as made specifically in response to Wizards building a new ''Dungeons & Dragons'' edition, when in reality it was in production before the announcement. edition. ''Pathfinder'' is written to be compatible with 3rd Edition, D&D v 3.5, and fix some of the remaining flaws in the system, though the quality of its changes is a [[BaseBreaker contentious subject among fans]]. Successor to the 3.5 throne, it is highly successful commercially and widely supported by third parties.
16th Mar '15 7:14:54 AM Koveras
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** ''d20 Franchise/StarWars''


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** ''TabletopGame/StarWarsD20''
8th Mar '15 2:06:59 PM crazysamaritan
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8th Mar '15 2:05:31 PM crazysamaritan
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The ''d20 system'' is a GameSystem for {{Tabletop RPG}}s created by WizardsOfTheCoast and premiering as the system used for the third edition of ''TabletopGame/DungeonsAndDragons''. What makes the d20 system unique is that it was released under the [[http://www.wizards.com/default.asp?x=d20/oglfaq/20040123f Open Game License]] (OGL), which was created by Wizards specifically for that purpose. Under the terms of the OGL, developers are granted permission to copy, use, modify, and redistribute the system -- effectively making it analogous to open source software. This means that ''anyone'' can create their own RPG using the d20 system, and even sell it for profit, without running afoul of copyright issues.

to:

The ''d20 system'' is a GameSystem for {{Tabletop RPG}}s created by WizardsOfTheCoast and premiering as the system used for the third edition of ''TabletopGame/DungeonsAndDragons''. What makes the d20 system unique is that it was released under the [[http://www.wizards.com/default.asp?x=d20/oglfaq/20040123f Open Game License]] (OGL), which was created by Wizards specifically for that purpose. Under the terms of the OGL, developers are granted permission to copy, use, modify, and redistribute the system -- effectively making it analogous to open source software. This means that ''anyone'' can create their own RPG using the d20 system, and even sell it for profit, without running afoul of copyright issues.



!!Examples of games using the d20 system:

* ''TabletopGame/DungeonsAndDragons''. It was created for Third Edition, and kept on for 3.5, but 4e used a different (non-open) license. Numerous third-party systems are intended to be additions to (or at least compatible with) 3e ''D&D'', rather than outright replacements.
** ''TableTopGame/IronHeroes'', a system from Fiery Dragon Productions, is dedicated to more tactical fighting than vanilla 3e D&D. Borrows heavily from action hero and fantasy movie tropes.
** ''Arcana Unearthed/Arcana Evolved'' by Malhavoc Press is a major rewrite with new spells, new classes, and new types of magic. Generally highly praised.
** ''TableTopGame/{{Pathfinder}}'' is a "D&D 3.75 edition" by Paizo Publishing, notable for being thought of as made specifically in response to 4e, when in reality it was in production before 4e was even announced. Written to be compatible with all of 3.5's material, it also attempts to fix some of the remaining flaws in the system, though the quality of its changes is a [[BaseBreaker contentious subject among fans]]. Successor to the 3.5 throne, it is highly successful commercially and widely supported by third parties.
** The ''TabletopGame/LegendSystem'' actually began as a series of house rules for 3.5 before the writers decided they had enough material for a full game.
* ''TableTopGame/MutantsAndMasterminds'', a superhero-themed PointBuy RPG, uses the d20 system for its core mechanics.
* ''NorthernCrown'', a North American fantasy setting by Atlas Games.
* ''TableTopGame/{{d20 Modern}}'' and ''d20 Future'', both developed by Wizards of the Coast, were attempts to bring the d20 system out of the HeroicFantasy setting iconic to D&D proper.
* ''True20'' is a simplified iteration of 3.5 from Creator/GreenRonin Publishing. Adapted to a wider variety of genres than D&D, it's a SpiritualSuccessor of sorts to ''d20Modern''. Its major selling point is ease of use and speed of play.
* ''D20Rebirth'' is a fan-made system in development, meant to serve as an alternative to TableTopGame/{{Pathfinder}} while retaining the same "3.75 Edition" feel.
* {{Microlite20}}: A free, extremely streamlined and rules-lite version of the d20 system, designed to be compatible with existing d20 monsters and adventure modules.

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!!Examples of games using !Games that use the d20 system:

system:
[[index]]
* ''TabletopGame/DungeonsAndDragons''. It ''TabletopGame/DungeonsAndDragons (3rd Edition)''. The d20 system was created by Wizards of the Coast for Third Edition, and kept on for 3.5, but 4e used a different (non-open) license. Numerous third-party systems are intended to be additions to (or at least compatible with) 3e ''D&D'', rather than outright replacements.
** ''TableTopGame/IronHeroes'', a system from Fiery Dragon Productions, is dedicated to more tactical fighting than vanilla 3e D&D. Borrows heavily from action hero and fantasy movie tropes.
**
this edition, although later editions have substantially revised upon it.
*
''Arcana Unearthed/Arcana Evolved'' by Malhavoc Press is a major rewrite with new spells, new classes, and new types of magic. Generally highly praised.
** ''TableTopGame/{{Pathfinder}}'' is a "D&D 3.75 edition" * ''TableTopGame/D20Modern'' and ''d20 Future'', both developed by Paizo Publishing, notable for being thought Wizards of as made specifically in response to 4e, when in reality it was in production before 4e was even announced. Written to be compatible with all of 3.5's material, it also the Coast, were attempts to fix some bring the d20 system out of the remaining flaws in the system, though the quality of its changes HeroicFantasy setting iconic to D&D proper.
* ''TabletopGame/D20Rebirth''
is a [[BaseBreaker contentious subject among fans]]. Successor to fan-made system in development, built along the 3.5 throne, it same logic as ''Pathfinder''.
* ''TabletopGame/IronHeroes'', a system from Fiery Dragon Productions,
is highly successful commercially dedicated to more tactical fighting than vanilla 3e D&D. The game itself borrows heavily from action hero and widely supported by third parties.
**
fantasy movie tropes.
*
The ''TabletopGame/LegendSystem'' actually began as a series of house rules for 3.5 before the writers decided they had enough material for a full game.
* ''{{TabletopGame/Microlite20}}'' is a free, extremely streamlined and rules-lite version of the d20 system, designed to be compatible with existing d20 monsters and adventure modules.
* ''TableTopGame/MutantsAndMasterminds'', a superhero-themed PointBuy RPG, uses using the d20 system for its core mechanics.
* ''NorthernCrown'', ''TabletopGame/NorthernCrown'', a North American fantasy setting by Atlas Games.
* ''TableTopGame/{{d20 Modern}}'' and ''d20 Future'', both developed ''{{TabletopGame/Pathfinder}}'' by Paizo Publishing is notable for being thought of as made specifically in response to Wizards building a new ''Dungeons & Dragons'' edition, when in reality it was in production before the announcement. ''Pathfinder'' is written to be compatible with 3rd Edition, and fix some of the Coast, were attempts to bring remaining flaws in the d20 system out of system, though the HeroicFantasy setting iconic quality of its changes is a [[BaseBreaker contentious subject among fans]]. Successor to D&D proper.
the 3.5 throne, it is highly successful commercially and widely supported by third parties.
* ''True20'' is a simplified iteration of 3.5 from Creator/GreenRonin Publishing. Adapted to a wider variety of genres than D&D, it's a SpiritualSuccessor of sorts to ''d20Modern''.''d20 Modern''. Its major selling point is ease of use and speed of play.
* ''D20Rebirth'' is a fan-made system in development, meant to serve as an alternative to TableTopGame/{{Pathfinder}} while retaining the same "3.75 Edition" feel.
* {{Microlite20}}: A free, extremely streamlined and rules-lite version of the d20 system, designed to be compatible with existing d20 monsters and adventure modules.
[[/index]]



** ''d20 StarWars''

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** ''d20 StarWars''Franchise/StarWars''



** ''WorldOfWarcraft d20''

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** ''WorldOfWarcraft ''TabletopGame/WorldOfWarcraft d20''
6th Nov '14 6:30:18 PM justanid
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The ''d20 system'' is a GameSystem for {{Tabletop RPG}}s created by WizardsOfTheCoast and premiering as the system used for the third edition of ''TabletopGame/DungeonsAndDragons''. What makes the d20 system unique is that it was released under the Open Game License (OGL), which was created by Wizards specifically for that purpose. Under the terms of the OGL, developers are granted permission to copy, use, modify, and redistribute the system -- effectively making it analogous to open source software. This means that ''anyone'' can create their own RPG using the d20 system, and even sell it for profit, without running afoul of copyright issues.

to:

The ''d20 system'' is a GameSystem for {{Tabletop RPG}}s created by WizardsOfTheCoast and premiering as the system used for the third edition of ''TabletopGame/DungeonsAndDragons''. What makes the d20 system unique is that it was released under the [[http://www.wizards.com/default.asp?x=d20/oglfaq/20040123f Open Game License License]] (OGL), which was created by Wizards specifically for that purpose. Under the terms of the OGL, developers are granted permission to copy, use, modify, and redistribute the system -- effectively making it analogous to open source software. This means that ''anyone'' can create their own RPG using the d20 system, and even sell it for profit, without running afoul of copyright issues.


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For a copy of the revised System Reference Document (SRD v3.5), you can find the [[http://www.wizards.com/default.asp?x=d20/article/srd35 original here.]]
1st Sep '14 3:46:25 AM TheOneWhoTropes
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* ''True20'' is a simplified iteration of 3.5 from GreenRonin Publishing. Adapted to a wider variety of genres than D&D, it's a SpiritualSuccessor of sorts to ''d20Modern''. Its major selling point is ease of use and speed of play.

to:

* ''True20'' is a simplified iteration of 3.5 from GreenRonin Creator/GreenRonin Publishing. Adapted to a wider variety of genres than D&D, it's a SpiritualSuccessor of sorts to ''d20Modern''. Its major selling point is ease of use and speed of play.
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