Critical Hit

A Critical Hit is a repeatable event during the battle causing target to take more damage than usual. Critical hits are considered to be an essential part of the game.

What are Critical Hits
Critical Hits are randomly occurring modifiers of either taken or healed direct damage. Critical hits deal or heal double more direct damage upon having them occur randomly.

Hero's Critical Hit chance is determined by hero's weapon.

Bleed and Blight inflicted by critical hits last 2 rounds longer.

Critical Hits on Heroes
Upon receiving a Critical Hit a hero will receive about 10 stress and will have a chance to cause about 8 stress upon random party members. Increased damage taken cannot cross 150% of attack's maximum damage of non-critical hit situation.

Critical Healing on Heroes
Hero upon receiving critical healing will have reduced stress by 4 and heal double more direct damage, than usual. If a hero receives critical healing by Restoration, that hero will heal as much stress as much health he healed.

Critical Hits on Enemies
Enemy receiving a critical hit heals 3 stress of a hero, who caused it and has a chance to heal 3 stress on other party members. Increased damage taken cannot cross 150% of attack's maximum damage of non-critical hit situation. A hero who strikes a critical hit upon enemy receives a 2 round buff depending on his class.

If a corpse receives critical hit it won't reduce stress of a hero, unless the attack was AOE and hit at least 1 non-corpse target.

Enemies who die of a critical hit don't drop corpses.

Critical Healing on Enemies
Enemy, who receives critical healing restores double more health directly than usual.

Critical hit bonuses
As of the day The Color of Madness DLC was released upon dealing critical hits to enemies, heroes now receive 2 rounds buffs on themself (though how buff duration works in Darkest Dungeon, they in effect only last 1 of that hero's turns). Some of them lasts 3 rounds (or 2 turns).

Bonuses
*Lasts 3 rounds.