|80/100 giving extra checks?||has breakpoints at 75, 90 and 100|
|Obtainable in game?||no|
Massively increases PP regeneration
This skill influences the time required to regenerate lost magic points. A high skill value also makes it easier to learn new spells. Scores of 75+ allow you to regain mana points a lot faster; the rate increases again at 90+ and 100.
You get a certain chance per turn per point of skill to regain one PP (under normal conditions character does not gain more than one PP per turn). At breakpoints mentioned in manual you get extra checks—so, skill at 75 is twice as effective as at 74, and so on.
Maxed out skill gives around 60PP per 100 turns, so for all spell casting classes it is recommended to max it ASAP.
Concentration also gives a minor boost for to-hit with missiles: 1 point per 50 points of skill.
Concentration has influence on the chance to read books—mostly for non spellcasting classes—and amount of spell knowledge gained per read. (Tests done on this in 1.1.1 are not statistically reliable.) As of 1.2.0, Literacy and book reading have undergone several changes, and Concentration now seems to be very important.