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< Star Wars: Knights of the Old Republic
Revision as of 19:46, 18 June 2019 by Onderduiker (talk | contribs) (→‎Debilitated penalty: Streamlined equipment sources, Death Blows can only be inflicted by melee attacks, added Reflex save and debilitated droid comment)
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Attack

Attacks with weapons cannot normally hit and subsequently damage an opponent unless an attack roll is equal to or greater than that opponent's Defense. An attack roll is the sum of attack bonuses and the roll of a twenty-sided die (d20). According to Feedback, a minimum d20 roll (1) is an automatic miss while a maximum d20 roll (20) is an automatic hit, so chance to hit has a minimum of 5% and a maximum of 95% regardless of whether or not the total attack roll would equal or exceed defense. Maximum 95% chance to hit is achieved when the sum of attack bonuses + 2 (the lowest d20 roll that is not an automatic miss) is equal to or greater than an opponent's defense.

According to Feedback, melee on ranged bonus of +10 is added to attack roll when a melee attacker attacks a ranged opponent. Conversely, Close Proximity Ranged Bonus of +10 is added to attack roll when a ranged attacker attacks any opponent in close proximity.

Base

All characters have a base attack bonus which increases as level increases. Progression varies according to class:

Soldier Scout Scoundrel Jedi Droid
Guardian Sentinel Consular Combat Expert
Fast Slow Slow Fast Slow Slow Fast Slow
Progression Level
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Slow [Level*3/4] 0 1 2 3 3 4 5 6 6 7 8 9 9 10 11 12 12 13 14 15
Fast Level 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Attribute modifier

Strength modifier is added to attack roll when using melee weapons, or lightsabers when equal to or greater than Dexterity modifier.

Dexterity modifier is added to attack roll when using ranged weapons, or lightsabers when greater than Strength modifier.

Dual Wield Penalty

Using two weapons or a double-bladed weapon normally incurs an attack penalty, which depends on whether or not the attacker has any Two-Weapon Fighting feat and a balanced weapon (which adds a Small Offhand Bonus of +2 to the attacks of the main hand):

Feat Unbalanced Balanced
Main hand Off hand Main hand Off hand
None -6 -10 -4 -10
Two-Weapon Fighting -6 -6 -4 -6
Improved -4 -4 -2 -4
Master -2 -2 0 -2

Feats

Numerous feats apply a penalty or bonus to the attack roll:

Feat Value Improved Master
Power Attack -3
Power Blast -3
Flurry -4 -2 -1
Rapid Shot -4 -2 -1
Weapon Focus +1
Dueling +1 +2 +3
Force Jump +2 +4

Effect bonus

Various weapons add an attack bonus to the attack roll, while the dark side power Slow applies a penalty of -2.

Critical Threat

As well as resulting in an automatic hit, a maximum d20 roll of 20 results in an automatic Critical Threat. A Critical Threat is a second attack roll which can result in a critical hit making a second damage roll when equal to or greater than an opponent's Defense.

Some weapons have a higher Critical Threat range, increasing the chance of a roll within that range:

Base Critical Threat range Keen Critical Threat range
20-20 (5%) 19-20 (10%)
19-20 (10%) 17-20 (20%)

Lightsabers and Short Lightsabers all have base Critical Threat range 19-20 (10%), while Double-Bladed Lightsabers only have 20-20 (5%). The Keen bonus can increase base Critical Threat range, as can the Critical Strike and Sniper Shot feats. According to Feedback, any Keen bonus is additive with feat bonuses, resulting in the following:

Feat Base Critical Threat range Keen Critical Threat range
Melee Ranged 20-20 (5%) 19-20 (10%) 19-20 (10%) 17-20 (20%)
Critical Strike Sniper Shot 19-20 (10%) 17-20 (20%) 18-20 (15%) 15-20 (30%)
Improved 18-20 (15%) 15-20 (30%) 17-20 (20%) 13-20 (40%)
Master 17-20 (20%) 13-20 (40%) 16-20 (25%) 11-20 (50%)

Defense

Characters can only be hit and subsequently damaged by attacks with weapons when an Attack roll is equal to or greater than defense. An attack roll is the sum of attack bonuses and the roll of a twenty-sided die (d20). According to the Feedback, a minimum d20 roll (1) is an automatic miss while a maximum d20 roll (20) is an automatic hit, so chance to hit has a minimum of 5% and a maximum of 95% regardless of whether or not the total attack roll would equal or exceed defense. Minimum 5% chance to hit is achieved when defense is greater than an opponent's attack roll + 19 (the highest d20 roll that is not an automatic hit).

All characters have base defense 10, to which their Dexterity modifier is added. Maximum Dexterity bonus to defense is restricted when wearing armor: for example, an armor displaying Max Dexterity Bonus: +5 would restrict defense added by the Dexterity modifier to +5, even when it was greater than +5.

However, although the Descriptions for robes display Max Dexterity Bonus as well, according to Feedback this restriction does not actually apply. Even though all robes display Max Dexterity Bonus: +8, Dexterity modifiers greater than +8 are still added to defense in their entirety.

Many opponents also have a Natural bonus and an Armor bonus. From comparing Defense Bonus displayed in an armor's description and the output of Feedback, this bonus is often split between Armor and feats and effects. The Defense Bonus of robes has no Armor bonus.

Feats and effects

Feedback sums penalties and bonuses from all of the following under feats and effects mod:

Source Value Improved Master
Feats Flurry -4 -2 -1
Rapid Shot -4 -2 -1
Critical Strike -5
Sniper Shot -5
Force powers Slow -2
Burst of Speed Burst +2 Knight +4 Master +4
Force Aura Aura +2 Shield +4 Armor +6
Robes +(1-5)
Armor Light +(0-4) Medium +(0-6) Heavy +(0-5)

Feats and effects are restricted to a maximum defense bonus of 10: for example, a light side Jedi wearing Qel-Droma Robes (+5) and using Master Speed (+4) and Force Armor (+6) only receives a defense bonus of 10, not 15. However, this also means that penalties can be incurred without reducing defense, since they can be offset by any excess: for example, in this case it makes no difference if Critical Strike is used since the defense bonus is 10 in either case (15 is restricted to 10, or 15 - 5 = 10).

Many Force powers are restricted by armor, including light side buffs. Although you cannot change armor once engaged in combat, you can put on armor if not already wearing any: this means you can quickly use light side powers like Master Speed, then put on armor for a truly dangerous combat Jedi.

Feat

One set of feats is separate to feats and effects in Feedback:

Feat Bonus Improved Master
Dueling +1 +2 +3

Class

Some classes receive a defense bonus from feats they gain at certain levels:

Bonus Level Class
Scoundrel Jedi Droid
+2 1 Scoundrel's Luck Jedi Sense Combat Logic Upgrade
+4 6 Improved Scoundrel's Luck Knight Sense Tactician Logic Upgrade
+6 12 Master Scoundrel's Luck Master Sense Battle Droid Logic Upgrade

Class bonuses are restricted to a maximum defense bonus of +10. This maximum can only be achieved by a main player character at level 18 with any Jedi class who was a level 6 Scoundrel, but it cannot normally be exceeded (since even a level 12 Scoundrel could only become a level 8 Jedi at most).

Debilitated penalty

Debilitated penalty results in -4 defense whenever a target is debilitated by any of the following:

Feats Force powers Equipment
Critical Strikes
Sniper Shots
Stun and Stasis (Field)
Stun, Disable and Destroy Droid
Force Push, Whirlwind and Wave
Fear, Horror and Insanity
Wound, Choke and Kill
Plasma, Concussion and CryoBan Grenades
Flash mines
On Hit: Horror, Stun and Paralyze

If a level < 5 character is debilitated then any melee attack in a subsequent combat round is a Death Blow, an automatic hit resulting in instant death, even if no damage is inflicted. Otherwise, being debilitated also means Dexterity modifier isn't added to Defense or Reflex save, and debilitated droids have saves reduced by 2. Characters may avoid being debilitated with a successful save, Immunity: Mind-Affecting, Force Resistance or Force Immunity.

Damage

A successful attack can inflict damage, reducing Vitality. Melee weapons and disruptors inflict physical damage of different types:

Bludgeoning Piercing Slashing
Weapon Damage Weapon Damage Weapon Damage Weapon Damage
Unarmed 1 Short Sword 1-6 Gamorrean Battleaxe 1-12 Wookiee Warblade 1-10
Stun batons 1 Gaffi sticks 1-8 Long swords 1-12 Double-bladed swords 2-12
Quarterstaff 1-6 Vibroblades 1-10 Vibroswords 2-12 Vibro double-blades 2-16
Disruptor pistols 1-4
Disruptor rifles 1-6

Creatures armed with claws also inflict slashing damage. Lightsabers and most ranged weapons inflict energy damage:

Lightsabers Damage Blaster pistols Damage Blaster rifles Damage Heavy weapons Damage
Short Lightsaber 2-12 Hold out blasters 1-4 Blaster carbines 1-8 Repeating blasters 1-8
Lightsaber 2-16 Blaster pistols 1-6 Blaster rifles 1-8 Heavy repeating blasters 1-10
Double-Bladed 2-20 Heavy blasters 1-8 Bowcasters 1-10

However, disruptors aren't the only ranged weapons that don't:

Sonic Ion
Weapon Damage Weapon Damage vs. Droid
Sonic pistols 1-4 Ion pistols 1-4 +1-10
Sonic rifles 1-6 Ion rifles 1-6 +2-12

How much damage is inflicted is normally determined by the roll of a virtual numbered die or dice, which can be expressed with the notation XdY, where X is the number of dice with Y sides rolled:

Damage 1-4 1-6 1-8 1-10 1-12 2-12 2-16 2-20
Notation 1d4 1d6 1d8 1d10 1d12 2d6 2d8 2d10

Minimum total roll is X, while the maximum is X * Y. The more dice are rolled, the more likely the total will approach the average. For example, although a Long Sword inflicts slightly less damage than a Vibrosword (1-12 or 1d12 vs 2-12 or 2d6), it is equally likely to roll 1, 7 or 12 (1/12 chance each), whereas the Vibrosword is far less likely to roll 2 or 12 (1/36 chance each) but far more likely to roll 7 (1/6 chance):

+ 1 2 3 4 5 6
1 2 3 4 5 6 7
2 3 4 5 6 7 8
3 4 5 6 7 8 9
4 5 6 7 8 9 10
5 6 7 8 9 10 11
6 7 8 9 10 11 12

More advanced weapons of the same type can have additional bonuses, both set or dice rolls, of the same or different damage type(s). The following damage bonuses are always the same type as the weapon:

Critical hit

Critical hits occur when the d20 roll of a successful attack is within the weapon's Critical Threat range and a second attack or threat roll is also successful. This results in a multiplication of a base damage roll of the weapon. Damage bonuses are multiplied as well, with the exception of following:

For example, the damage of a critical hit from a dark side Scoundrel Jedi Guardian's Master Force Jump Sneak Attack using a Lightsaber with Crystal, Sigil (Damage Bonus: 1-6, Energy) and Crystal, Opila (Damage Bonus: 3, Energy and Massive Criticals: 2-12), Strength modifier +8, Weapon Specialization: Lightsaber and dark side mastery would be as follows:

Type Source Damage Critical hit Total
Energy Lightsaber 2-16 + 2-16 4-32
Damage Bonus: 3, Energy 3 3
Damage Bonus: 1-6, Energy 1-6 + 1-6 2-12
Strength Strength modifier 8 + 8 16
Bonus damage Master Force Jump 4 + 4 8
Massive Criticals: 2-12 + 2-12 2-12
Weapon Specialization Weapon Specialization: Lightsaber 2 + 2 4
Physical (slashing) Dark side mastery 1-8 + 1-8 2-16
Sneak attack damage Sneak Attack IV 4-24 4-24
Total 25-71 + 20-56 45-127

Due to the need for two successful rolls, the Critical Strike and Sniper Shot feats are extremely dependent on chance to hit to maximize their damage. However, threat roll has no automatic miss on 1 and hit on 20, so 100% and 0% chance are possible.

Taking chance to hit, Critical Threat range and threat roll into account, the actual probability of any attack end up as successful critical hit are shown in the following:

% Chance on Roll % Chance of Critical Threat
Attack Threat 5 10 15 20 25 30 40 50
5 0 0 0 0 0 0 0 0 0
5 5 0.25 0.25 0.25 0.25 0.25 0.25 0.25 0.25
10 10 0.5 1 1 1 1 1 1 1
15 15 0.75 1.5 2.25 2.25 2.25 2.25 2.25 2.25
20 20 1 2 3 4 4 4 4 4
25 25 1.25 2.5 3.75 5 6.25 6.25 6.25 6.25
30 30 1.5 3 4.5 6 7.5 9 9 9
35 35 1.75 3.5 5.25 7 8.75 10.5 12.25 12.25
40 40 2 4 6 8 10 12 16 16
45 45 2.25 4.5 6.75 9 11.25 13.5 18 20.25
50 50 2.5 5 7.5 10 12.5 15 20 25
55 55 2.75 5.5 8.25 11 13.75 16.5 22 27.5
60 60 3 6 9 12 15 18 24 30
65 65 3.25 6.5 9.75 13 16.25 19.5 26 32.5
70 70 3.5 7 10.5 14 17.5 21 28 35
75 75 3.75 7.5 11.25 15 18.75 22.5 30 37.5
80 80 4 8 12 16 20 24 32 40
85 85 4.25 8.5 12.75 17 21.25 25.5 34 42.5
90 90 4.5 9 13.5 18 22.5 27 36 45
95 95 4.75 9.5 14.25 19 23.75 28.5 38 47.5
95 100 5 10 15 20 25 30 40 50

For example, the total damage of a dark side Jedi Guardian's successful hit using a Lightsaber (2-16) with the Sigil (1-6) crystal, Strength modifier +8, Weapon Specialization: Lightsaber (+2) and Dark Side mastery (1-8) is 14-40, or 27 average damage per hit. Master Critical Strike quadruples critical threat range from 10% to 40%, so:

  • 10% chance to hit results in 2.7 average damage per attack + 27*1% additional critical damage (10% critical threat range * 10% threat roll = 1%) to 2.97 average damage in total. In this case Critical Strike is useless, because extended 13-20 (40%) critical threat range is cut by 19-20 (10%) chance to hit, so it returns to same dafault 10% and you get no advantage, but still may have -5 defense penalty.
  • 50% to hit results in 13.5 average damage + 27*20% critical damage (40% critical threat range * 50% threat roll) for 18.9 in total.
  • 75% to hit results in 20.25 average damage + 27*30% critical damage for 28.35 in total.
  • 95% to hit with 100% on threat roll results 25.65 average damage + 27*40% critical damage for 36.45 in total.

Damage Resistance

Damage which isn't deflected by any Shields can be resisted before Combat Difficulty increases it by 50% on Difficult. The feats Improved Toughness and Wookiee Toughness reduce any damage (including acid, dark side, ion, light side, piercing, poison and universal) by 2, but other sources of resistance only reduce specific damage types:

Source Damage Resistance: Resist vs.
Bludgeoning Slashing
Arms Brejik's Armband 5/-
Belts Brejik's Belt 5/-

Improved Energy Resistance allows any level > 8 Jedi to grant the entire party Immunity: Poison and Damage Resistance: Resist 15/- vs. Sonic, Cold, Fire, Electrical (and Energy) for 120 seconds (2 minutes). Additional sources of damage resistance against these types are rarely necessary, particularly since successful saves normally halve the damage of grenades and droid special weapons beforehand.

Source Damage Resistance: Resist vs.
Sonic Cold Fire Electrical
Force powers (Improved) Energy Resistance 15/- 15/- 15/- 15/-
Head Interface Band 5/-
Interface Visor Feats Required: Armor Proficiency - Light 5/-
Sonic Nullifiers Feats Required: Armor Proficiency - Light 10/-
Tulak Hord's Mask Restricted to: Dark Side 10/-
Verpine Ocular Enhancer Feats Required: Armor Proficiency - Light 5/-
Light armor Darth Bandon's Fiber Armor 25/-
Echani Fiber Armor Mesh Underlay 20/- 20/-
Echani Light Armor 15/-
Zabrak Battle Armor 20/-
Medium armor Cinnagar War Suit 15/-
Davik's War Suit 10/- 10/-
Krath Holy Battle Suit 15/- 15/- 15/-
Powered Light Battle Armor 25/-
Heavy armor Calo Nord's Battle Armor 10/- 10/- 10/-
Cassus Fett's Battle Armor 10/- 10/- 10/-
Jurgan Kalta's Power Suit 10/- 10/- 10/-
Jurgan Kalta's Power Suit Mesh Underlay 15/- 15/- 15/-
Mandalorian Assault Armor 25/- 25/-
Mandalorian Battle Armor 25/-
Verpine Zal Alloy Mesh 25/- 25/- 25/-

Damage Immunity

Damage Immunity Source Description
100% vs. Cold Medium armor Environmental Bastion Armor
100% vs. Electrical Belt Electrical Capacitance Shield
100% vs. Fire Medium armor Environmental Bastion Armor
Belt Thermal Shield Generator
100% vs. Sonic Medium armor Environmental Bastion Armor

Damage Immunity is normally excessive since a combination of high saves, (Improved) Energy Resistance and Damage Resistance can already significantly reduce damage, or even negate it entirely.

Damage Immunity: 100% vs. Electrical may be useful against the dark side powers Shock, Force Lightning and Force Storm (although it does not apply to the Force point damage of the latter), and combining it with Immunity: Mind-Affecting removes the need for Will saves almost entirely.

Combat Difficulty

Adjusting Combat Difficulty has the following effect on damage from enemy attacks:

Difficulty Enemy Damage Final Damage
1 2 3 4 5 6 7 8 9 10
Easy 50% 0 1 1 2 2 3 3 4 4 5
Normal 100% 1 2 3 4 5 6 7 8 9 10
Hard 150% 1 3 4 6 7 9 10 12 13 15

Final enemy damage is reduced by 50% on Easy and increased by 50% on Hard, rounding down in both cases. This includes 'friendly' fire from grenades and mines.

Vitality

The red bar represents a character's health, measured in vitality points. Vitality points (VP) decrease when a character takes damage from an attack or other effect. If the total reaches zero, the character falls unconscious and is unable to move or fight until healed. If the entire party falls unconscious, the game will end. To continue, load a previously saved game or begin from the last AUTO SAVE point. As long as one character in the party remains conscious to guard the others, the game will continue.
Class Per level Level
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Soldier +10 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
Scout +8 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
Scoundrel +6 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
Guardian +10 10 20 30 40 50 60 70 80 90 100 110 120 130 140 150 160 170 180 190 200
Sentinel +8 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160
Consular +6 6 12 18 24 30 36 42 48 54 60 66 72 78 84 90 96 102 108 114 120
Combat Droid +12 12 24 36 48 60 72 84 96 108 120 132 144 156 168 180 192 204 216 228 240
Expert Droid +8 8 16 24 32 40 48 56 64 72 80 88 96 104 112 120 128 136 144 152 160

Constitution modifier affects Vitality points per level, resulting in total Vitality from the table above being adjusted by modifier * level. The feat Toughness adds 1 vitality point per level, while Master Toughness and Wookie Toughness both add 2 vitality points per level, the former replacing the +1 bonus granted by Toughness

Regeneration

NOTE: Unlike Force points, vitality points do not regenerate and must be healed through the use of Force powers, medpacs and other items.

While this is normally true, the Regeneration bonus allows it to do so. However, any bonus only applies once every six seconds (every two combat rounds):

Source Bonus Description
Implants (Level 3) +2 Sith Regenerator
+2 Navardan Regenerator
Robes +1 Darth Revan's Robes Restricted to: Dark Side
Canderous +4 Unique ability
HK-47 +1 Third repair
+1 Fourth repair

Maximum Regeneration: +6 for Canderous, or just +1 per second. HK-47's Regeneration bonuses are cumulative, so after his fourth repair Regeneration: +2 is applied.