Constitution is one of the six ability scores.
For warrior and priest class group, constitution modifies their HP for the first 9 levels, for wizard, rogue class group, the first 10 levels. For example, a Ranger with 18 constitution gains 1d10+4 HP each level from 1 to 9 and a fixed +3 each level afterwards; a Mage with 15 constitution gains 1d4+1 HP each level from 1 to 10 and a fixed +2 each level afterwards. The effects of constitution altering are retroactive, whenever the score changes, hit points are immediately added or subtracted. Having 20 or more constitution also grants HP regeneration.
Dwarves, Halflings and Gnomes, get bonuses called "shorty bonuses" to Saving Throws based on their constitution, Dwarves and Halflings both have the bonus added to their death, wands and spells ST, while Gnomes receive this bonus to vs. wands and spells, these bonuses are re-calculated only on level-up.
Constitution also effects how much time spent before a character gets fatigued and their capacity for liquor.
The classic Baldur's Gate manual describes a "resurrection chance" based on constitution, but this is not actually implemented in game. All companions can be resurrected regardless of their constitution score provided their body is salvageable, that is, the companion's hit points haven't been reduced below -10, or been turned to stone and subsequently shattered. On normal difficulties and below, companions can be resurrected even if their body are destroyed.
Warrior class group HP modifier each level 1 - 9
|Priest class group HP modifier each level 1 - 9||
Wizard & Rogue class group HP modifier each level 1 - 10
|HP Regeneration Rate||
"Shorty" ST bonus
"Shorty" ST bonus
|20||+5||+2||1HP / 60sec||-5|
|21||+6||+2||1HP / 50sec||-5|
|22||+6||+2||1HP / 40sec||-5|
|23||+6||+2||1HP / 30sec||-5|
|24||+7||+2||1HP / 20sec||-5|
|25||+7||+2||1HP / 10sec||-5|
Constitution score alteringEdit
- Manual of Bodily Health in BGBG:EE
- In BGII(SoA)BGII:EE(SoA), a +2 constitution boost is gained from offering a Tear of Bhaal in Hell by taking the Evil choice during the Test of Fear.
- Machine of Lum the Mad in BGII(ToB)BGII:EE(ToB)
- The Dragon Disciple sorcerer kitBG:EESoDBGII:EE receives a +1 constitution bonus at level 5 and 15.
- Drinking Vial of Mysterious Liquid