Unarmed Combat

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Version 0.14: This article is up to date for the latest stable release of Crawl.

The Unarmed Combat skill determines the effectiveness of all attacks made with your character's fists (or tentacles in the case of octopodes), increasing the damage, accuracy, and speed of your unarmed attacks. Although there are many non-punch auxiliary attacks you can make with the rest of your body, these are not affected by the UC skill whatsoever. Training this skill is only advisable if you intend to engage in melee while unarmed or while leaving your off-hand empty.

For many species, fighting without a weapon is not a very appealing prospect. Leaving your weapon and/or shield slot open means that you cannot take advantage of weapon brands, miss out on the defensive value of a shield, and have two fewer slots for wielding artifacts that may provide useful resistances or other bonuses. However, unarmed combat allows for some of the fastest attacks in the game, deals competitive damage to weapon wielders at high skill levels, and allows you to take advantage of the many Transmutations spells which grant you powerful unarmed capabilities. Also, some species have natural aptitudes or innate mutations that make unarmed combat a much more tempting choice.

Contents

Attack Delay

Unarmed combat specialists are capable of making some of the fastest attacks in the game, on par with the speed of most short blades wielders. Couple this with the fact that UC attacks have a much higher base damage than any short blade, and you can see why they're capable of doing very significant amounts of damage very quickly. However, it requires much more Unarmed Combat skill to reach maximum attack speed than it does for a weapon fighter to reach their maximum, and unarmed combat is penalized for wearing heavy armour or carrying too much equipment. Bear in mind that this only applies to main-hand punches; auxiliary offhand punches occur along with your main hand attacks.

Bonuses From Skill

Weapon fighters gain a 1 point reduction to their attack delay for every 2 levels they have in their appropriate weapon skill, allowing them to reach maximum weapon speed by the mid-game in most cases. Unarmed Combat uses a different formula, however; your attack delay is reduced by 1 for roughly every 5.4 skill levels, reaching a delay of 5 at UC skill 27. Fortunately, unarmed combat is also much faster than fighting with most weapons by default, so they still enjoy fairly quick attacks throughout the game.

Armor and Shield Penalties

Wearing a shield or armour with any EV penalty may increase your UC attack delay. Every time you throw a punch, the following die roll is made for your armor:

1d10 + 2d(Adjusted armour penalty) - 10

Your penalty is reduced by Armour skill, and the penalty for shields is handled by its own formula (see the shields page for details). If the result of this roll comes out positive, the attack's delay is increased by the result of the roll. While the penalties for wearing a buckler or leather armour are fairly minimal, any of the heavier armours might slow your attacks. However, this is generally not a major consideration in terms of which armour you want to wear. Having appropriate Armour skill will reduce the penalty for even very heavy armors to small delay increases. Other considerations like wanting to cast higher level spells, species size category (larger is better), and EV-favored races are more of a factor in determining how heavy of an armour you should wear. In terms of shields, having the required amount of skill (i.e., 5 for bucklers and 15 for shields for normal species) will completely remove the usual attack delay from shields. There is a separate attack delay for shields which applies only to unarmed combat, a 50% chance of a 1 aut increase, which cannot be removed through any means, but this is not that severe of a delay.

Encumbered

Fighting while encumbered or overloaded negates any bonus to attack delay you may receive from your unarmed combat skill. Penalties from your EV penalty still apply.

Other Factors

Characters in bat form receive a special bonus to unarmed combat, making attacks in 60% of the normal time (though at a significant penalty to damage). Other effects that can influence attack speed (such as Haste, Slow, Statue Form, etc.) apply as normal, with a hardcoded limit at 3 which you cannot exceed.

Final Calculation

Finally, your attack delay can never be a fraction of an aut. If your calculated speed falls between two whole numbers, the game will round up or down based on the remainder (7.2 would have a 20% chance of being rounded to 8 and an 80% chance of being 7).

UC Avg delay UC Avg delay UC Avg delay
0 10.0 10 8.1 20 6.3
1 9.8 11 8.0 21 6.1
2 9.6 12 7.8 22 5.9
3 9.5 13 7.6 23 5.7
4 9.2 14 7.4 24 5.6
5 9.1 15 7.2 25 5.4
6 8.9 16 7.0 26 5.2
7 8.7 17 6.8 27 5.0
8 8.5 18 6.7
9 8.3 19 6.5

Base Damage

The base damage of your primary unarmed combat attack is determined through the following factors:

Condition Damage Special
Porcupine Form 3 -
Pig Form 3 -
Bat Form 1 60% Attack Delay
Vampire Bat Form 2 60% Attack delay
Spider Form 5 Venom
Wisp Form 5 -
Ice Form 12 Freezing
Fungus Form 12 Confusing Touch
Tree Form 12 -
Blade Hands 12 + (STR + DEX) / 4 -
Statue Form 9 + STR / 2 150% attack delay
Dragon Form 12 + (2/3) STR Heavy bleeding
Lich Form 5 Draining
Troll 9 Heavy bleeding
Ghoul, Felid 5 Light bleeding
Claws mutation +2 × Claws ranks Wearing gloves negates this
Other 3 -

Your base damage is then increased by your unarmed combat skill level (divided by 5 when in Bat Form). This base damage is then further modified by your strength, dexterity, Fighting skill, and other factors. A value is randomly selected between 1 and the final calculated damage, and the target's AC is applied against it.

Offhand punches are significantly less powerful, using the following calculation:

Condition Damage Special
Offhand Punch 5 + (UC / 3) +(1d3 × Claws ranks) or +(6 if Blade Hands) Wearing any shield negates this

Octopodes get tentacle slaps instead of offhand punches, and may still make tentacle slaps while wearing a shield, making it generally best for unarmed octopodes to use a shield.

History

In earlier versions of Crawl, Unarmed Combat improved the performance of your non-punch auxiliary attacks, giving all melee fighters a reason to train it.

Unarmed Combat Aptitudes

From Dungeon Crawl Stone Soup in-game documentation:

Hu Ce Dg Ds Dr DD DE HE Fe Fo Gr Gh Ha Ko Mf Mi Mu Na Op Og HO Sp Te Tr Vp VS
0 0 -1 -1 0 -1 -2 -2 0 0 1 1 -2 0 1 1 -2 0 0 -1 1 -2 1 0 1 0
Skills
Melee Short BladesLong BladesAxesMaces & FlailsPolearmsStavesUnarmed Combat
Ranged BowsCrossbowsSlingsThrowing
Physical FightingArmourDodgingStealthStabbingShieldsTraps
Magical SpellcastingInvocationsEvocations
Spell Schools AirCharmsConjurationsEarthFireHexesIceNecromancyPoisonSummoningTranslocationsTransmutations