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:'' '''d20''' redirects here. For the game system, see [[d20 System]].
[[Image:Le430.jpg|frame|right|Polyhedral dice: d4, d6, d8, d10/d100, d12 & d20]]
[[Dungeons and Dragons]], on which [[NWN2]] is based, uses '''die rolls''' to determine the outcome of many events. With NWN2, dice are no longer rolled on a table, but they're still used throughout the game.

==Notation==
Die rolls are written as '''X'''d'''Y'''.
*'''X''' = represents the number of dice rolled
*'''Y''' = represents the highest face-value of the die (the lowest value is 1)

For example, 4d8 means four 8-sided (values between 1 and 8 inclusive) dice are rolled (giving a weighted random number of 4-32).

When the number of dice is not indicated, it means one die is rolled; e.g. d20 means 1d20.

The d100 is sometimes written as d% or d00 and is also referred to as ''percentile dice''.

==Common types==
Tabletop DnD uses [[polyhedral dice]]. The [[d20 System]] -- the underlying rules used by DnD and NWN -- is named after the d20 die. The d20 is used with many of the most important rolls in the game: [[attack roll]]s, [[saving throw]]s, [[skill check]]s, [[ability check]]s, etc.

Other dice are used for [[damage]] rolls, [[hit dice]], and other uses.

In general, a high roll is more benefitial than a lower roll, e.g., better chance to hit or save, more damage, etc.

==Automatic hits and misses==
An [[automatic hit]] is an attack that hits regardless of target [[AC]]. Automatic hits occur on an [[attack roll]] of [[natural roll|natural]] 20 or as a result of certain spells. A natural 20 attack roll is also a [[threat]] -- a possible [[critical hit]].

An [[automatic miss]] is an attack that misses regardless of target AC. Automatic misses occur on an attack roll of natural 1.

==Die Roll & Damage==
Certain damage in NWN2 is based on dice rolls such as a weapon attack or sneak attack. Some of the damage done through die rolls can be increased if a critical hit is landed while some dice rolls aren't. Having a lot of die rolls doesn't guarantee more damage. The more die rolls you have means you are capable of doing burst damage. Think of having multiple die roll on a attack as trying to hit lottery. For example, a Barbarian 29/Fighter 1 build using a Bastard sword who has both Overhwhelming Critical and Thundering Rage feats will have three die rolls when landing a critical hit. First, the Bastard sword damage is calculated, which will be 2d10 on a critical for 2 to 20. Secondly, the Overwhelming critical of a 1d6 for 1 to 6 damage. Finally, Thundering Rage will add 1d8 for 1 to 8. The outcome will be 4 to 34 + Strength bonus. Depending on your strength score/bonus, your strength will be doing the majority of damage based on the number of times you swing.
[[Category:Glossary]]
[[Category:Game rules]]

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