Aptitude
Your aptitudes are determined solely by your species.
As a result, certain species are biased or specialized towards certain backgrounds. For example, Deep Elves perform much better at magical backgrounds than purely melee-oriented ones, while the reverse is true for Minotaurs. One of the keys to winning the game is paying attention to your species' aptitudes, and choosing a playstyle that takes the most advantage of them. Luckily, the character select screen helps you with that, as backgrounds that your species has good aptitudes for are highlighted as "recommended".
Press ?% in-game to see the big table of races and aptitudes.
Aptitude / XP formula
If you're interested in the actual math, an aptitude of n means that you need 2^(-n/4) times as much exp to advance as a human.
Example: A Spriggan has a +4 aptitude in Stabbing. If it would take a Human 100 experience points to advance a level in Stabbing, it will take the Spriggan 2^(-4/4) -> 2^(-1) -> 0.5 times as much experience, or 50 experience points to advance a level.
Comparison Table
The table below shows the relative experience needed to go up a skill level, assuming that with the aptitude of 0, 100 experience is needed. For example an aptitude of -4 means 200 experience is required to go up a skill level, or twice as much as aptitude 0.
| Aptitude | Skill Points | Description |
|---|---|---|
| -5 | (238) | abysmal aptitude |
| -4 | (200) | very poor aptitude (learning half as fast as Humans) |
| -3 | (168) | poor aptitude |
| -2 | (141) | bad aptitude |
| -1 | (119) | slightly disfavoured aptitude |
| 0 | (100) | standard aptitude (Humans) |
| +1 | (84) | slightly favoured aptitude |
| +2 | (71) | strong aptitude |
| +3 | (59) | very strong aptitude |
| +4 | (50) | outstanding aptitude (learning twice as fast as Humans) |
| +5 | (42) | exceptional aptitude |
History
Prior to 0.7.0, aptitudes were expressed in numbers smaller or larger than 100 (average), as in the Skill Points table above.
