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Experience points (XP) are an abstract measure of the experience, knowledge, and training that a PC gains while adventuring. They are gained from beating monsters, completing quests, and (in some modules) a variety of things from crafting to using skills.

The amount of experience required for each level can be found in the level progression (for levels 1-20) and epic progression (for levels 21-40) articles. It takes 1,000 XP per current level to reach the next level.

The formula used for monster XP awards is, according to BioWare, quite complicated, and though based on the D&D:3E system, it takes into consideration many factors including (but possibly not limited to) party size (including henchmen and summoned creatures), effective character level (a combination of class and level), and monster challenge ratings [1]. Some of this information is retrieved by the engine from the data files xptable.2da, racialtypes.2da, classes.2da and xpbaseconst.2da.

Experience points (XP) are an abstract measure of the experience, knowledge, and training that a PC gains while adventuring. They are gained from beating monsters, completing quests, and (in some modules) a variety of things from crafting to using skills.

The amount of experience required for each level can be found in the level progression (for levels 1-20) and epic progression (for levels 21-40) articles. It takes 1,000 XP per current level to reach the next level.

The formula used for monster XP awards is, according to BioWare, quite complicated, and though based on the D&D:3E system, it takes into consideration many factors including (but possibly not limited to) party size (including henchmen and summoned creatures), effective character level (a combination of class and level), and monster challenge ratings [2]. Some of this information is retrieved by the engine from the data files xptable.2da, racialtypes.2da, classes.2da and xpbaseconst.2da.

Formula Edit

Playtesting has revealed that the formula for the standard XP awarded for killing creatures appears to be

base XP * multiclass penalty * party size penalty 

where

  • the base XP is retrieved from xptable.2da with the row being the PC's earned character level (which may be more than the levels actually taken) and the column being the enemy's challenge rating — then multiplied by 10 times the experience point slider setting (a percentage) and rounded down to an integer value;
  • the multiclass penalty is expressed as 100%, 80%, or 60% (rather than as the amount lost); and
  • the party size penalty is 4 / (3 + party size).

In the original campaign the challenge rating is further modified by a bonus from the effective character level.

Example: An elven druid 5 / sorcerer 1 has two henchmen, a familiar, an animal companion, a summoned creature, and a dominated creature. This character now suffers an 80% multiclass penalty and a 4/10 party size penalty and will only gain 0.8 * 0.4 = 32% of the base XP for kills.


XP adjustments for party size and multiclass penalty
Party size no penalty 20% penalty 40% penalty
1 100%80% 60%
2 80% 64% 48%
3 67% 53% 40%
4 57% 46%34%
5 50% 40% 30%
6 44% 36% 27%
7 40% 32% 24%
8 36% 29% 22%
9 33% 27% 20%
10 31% 25% 18%