imported>Deathssilkymist: /* Calculations for Melee, Archery, and Throwing Damage */

2026-05-07T16:26:10Z

Calculations for Melee, Archery, and Throwing Damage

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== Calculations for Melee, Archery, and Throwing Damage ==
''' Damage Cap '''

The damage cap is NOT a total damage cap. It is the base weapon damage that is caped.

The patch on Monday, February 13th, 2017 introduced per-class limits:

{| class="eoTable3" style="text-align:center" |
! colspan="2" style="text-align:center" |     Caster Weapon Damage Cap
|-
! style="text-align:center" | Level Range
! style="text-align:center" | Weapon DMG Cap
|-
| 1-9 || 6
|-
| 10-19 || 10
|-
| 20-29 || 12
|-
| 30-39 || 18
|-
| 40+ || 20
|}

{| class="eoTable3" style="text-align:center" |
! colspan="2" style="text-align:center" |     Priest Weapon Damage Cap
|-
! style="text-align:center" | Level Range
! style="text-align:center" | Weapon DMG Cap
|-
| 1-9 || 9
|-
| 10-19 || 12
|-
| 20-29 || 20
|-
| 30-39 || 26
|-
| 40+ || 40
|}
{| class="eoTable3" style="text-align:center" |
! colspan="2" style="text-align:center" |     Melee & Tank Weapon Damage Cap
|-
! style="text-align:center" | Level Range
! style="text-align:center" | Weapon DMG Cap
|-
| 1-9 || 10
|-
| 10-19 || 14
|-
| 20-29 || 30
|-
| 30-39 || 60
|-
| 40+ || 100
|}
 

''' Damage Calculation '''

{| class="eoTable3" style="text-align:center" |
! colspan="4" style="text-align:center" |     Caster & Priest Damage Multiplier
|-
! style="text-align:center" | Level Range
! style="text-align:center" | maxExtra
! style="text-align:center" | maxExtraChance
! style="text-align:center" | minusFactor
|-
| 1-50 || 210? || 49? || 80
|-
| 51-55 || 210? || 35?|| 80?
|-
| 56-59 || 210? || 28? || 80?
|-
| 60 || 210 || 23? || 80
|}

{| class="eoTable3" style="text-align:center" |
! colspan="4" style="text-align:center" |     Melee & Tank Damage Multiplier
|-
! style="text-align:center" | Level Range
! style="text-align:center" | maxExtra
! style="text-align:center" | maxExtraChance
! style="text-align:center" | minusFactor
|-
| 1-50 || 210? || 49? || 80
|-
| 51-55 || 245? || 35? || 80?
|-
| 56-59 || 265? || 28? || 70?
|-
| 60 || 285 || 23? || 65
|}
NOTE: Not all of the values in the two damage multiplier tables have been tested on P99. [https://github.com/EQEmu/EQEmu/blob/6c057308da66754b44000c665391e766347c16f7/zone/attack.cpp#L5742 Original EQEMU values are here.] The EQEMU has a monk specific table, so it is possible that there are unique tables for some classes. 
 
Here is a breakdown of the damage calculation in a simplified format. Please note that it is difficult to confirm all of the magic numbers for P99, so a few of them may differ slightly from the EQEMU code. Because of this, the max damage numbers may be a few points off when looking at P99 damage numbers. 
 
'''1. Calculate Wrath''' 
1a. StrengthModifier = ((2 * STR) - 150) / 3 
1b. If STR is less than 75, StrengthModifier = 0 
 
1c. Wrath = Weapon Skill + StrengthModifier + Worn ATK + Spell ATK 
 
'''2. Roll a D20''' 
Press the expand button if you want to see how the game weights the D20 dice. Otherwise, you can just assume a roll of 20 for max damage calcualtions. 
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2a. WrathRoll = Random Float Value Between 0.0 and 1.0 * (Wrath + 5) 
2b. MitigationRoll = Random Float Value Between 0.0 and 1.0 * (Defenders Total Worn AC + Defenders Total Spell AC + (Defenders Defense Skill / 5) + (Defenders Agility / 20) + 5) 
2c. AverageRoll = (WrathRoll + MitigationRoll + 10) / 2 
2d. If AverageRoll is less than 1, AverageRoll = 1 
2e. RollIndex = (WrathRoll - MitigationRoll) + (AverageRoll / 2) 
2f. If RollIndex is less than 0, RollIndex = 0 
2g. Weighted D20 Dice Roll = ((RollIndex * 20) / AverageRoll) rounded down 
2h. If Weighted D20 Dice Roll is less than 0, Weighted D20 Dice Roll = 0 
2i. If Weighted D20 Dice Roll is greater than 19, Weighted D20 Dice Roll = 19 
2j. Weighted D20 Dice Roll = Weighted D20 Dice Roll + 1 
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2k. RolledD20 = Weighted D20 Dice Roll / 10 
 
'''3. Calculate DamageDone''' 
3a. If Wrath is less than 115, Extra Percent = 100, skip to step 3g 
3b. Roll D100. If Rolled D100 is less than maxExtraChance, Extra Percent = 100, skip to step 3g 
3c. Base Bonus = (Wrath - minusFactor) / 2 
3d. If Base Bonus is less than 10, Base Bonus = 10 
3e. Extra Percent = 100 + (Base Bonus * Random Float Value between 0.0 and 1.0) 
3f. If Extra Percent is greater than maxExtra, Extra Percent = maxExtra 
 
3g. DamageDone = (Weapon Damage * RolledD20 * Extra Percent) / 100 
 
'''4. Calculate FinalDamage''' 
4a. If using Archery, DamageDone = DamageDone / 2 
4b. If not using Archery, or using Archery as a Ranger and target is "stationary" (mob not moving and not rooted), skip step 4a 
4c. If Critical Hit is possible and has occurred, continue to step 4d. Otherwise skip to step 4i 
4d. If DamageDone is less than Weapon Damage, DamageDone = Weapon Damage 
4e. DamageDone = DamageDone + 5 
4f. DamageDone = DamageDone * 1.7 
4g. Continue if Warrior and Berserk 
4h. DamageDone = DamageDone + (Damage from step 4e * 1.19) 
 
4i. FinalDamage = DamageDone + [http://lucy.allakhazam.com/dmgbonus.html Main Hand Damage Bonus] 
 
NOTE: Throwing does NOT get the Main Hand Damage Bonus 
NOTE: Archery uses the Main Hand Damage Bonus of the Weapon in your Primary Hand 
NOTE: When using [[Breezeboot's_Frigid_Gnasher]] in your Primary Hand, it uses the 2Handed Damage bonus for 50 Delay rather than the 1Handed Damage Bonus. This is still true even if you are dual wielding 
 
''' Damage Calculation Examples ''' 
Below are some P99 examples with videos and logs, which are found in the video description. All of these calculations are max damage calculations. 
 
[https://youtu.be/Py96jk2NflU?si=s2RIoXwCW6M-vUbB Level 60 Shadowknight with Ancient Fire Etched Flamberge (46/44) in the Main Hand] 
 
1. Wrath = 225 2Hand Slash Skill + ((231 STR * 2) - 150) / 3 + 10 worn ATK from [[Aura_of_Battle]] + 6 worn ATK from [[Blazing_Gauntlets_of_Fennin_Ro]] = 345 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (345 Wrath - 65 minusFactor) / 2 = 140 
3b. Extra Percent = 100 + (140 Base Bonus * 1.0 Random Value) = 240 
3c. DamageDone = (46 Weapon Damage * 2 RolledD20 * 240 ExtraPercent) / 100 = 220 rounded down 
4. 220 + 37 Main Hand Damage Bonus = 258 
 
Max Damage Calculated = 257 
Max Damage Recorded = 258 
 
219 hits out of 496 hits total are below or at Weapon Damage * 2 + Main hand Damage Bonus (129 Damage). That is a ~56% chance to hit above Weapon Damage * 2 + Main hand Damage Bonus (129 Damage). 
 
[https://www.youtube.com/watch?v=CwdW1_l7ibg Level 60 Shaman with Spear of Fate (20/30) in the Main Hand] 
 
1. Wrath = 200 Pierce Skill + ((255 STR * 2) - 150) / 3 + 20 Worn ATK from 2x [[Aura_of_Battle]] + 100 Spell ATK from [[Primal_Avatar]] = 440 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (440 Wrath - 80 minusFactor) / 2 = 180 rounded down 
3b. Extra Percent = 100 + (180 Base Bonus * 1.0 Random Value) = 280 
3c. Extra Percent = 210, because 280 > 210 maxExtra 
3d. DamageDone = (20 Weapon Damage * 2 RolledD20 * 210 ExtraPercent) / 100 = 84 
4. 84 + 0 Main Hand Damage Bonus = 84 
 
Max Damage Calculated = 84 
Max Damage Recorded = 84 
 
333 hits out of 959 hits total are below or at Weapon Damage * 2 (40 Damage). That is a ~65% chance to hit above Weapon Damage * 2 (40 Damage). 
 
[https://www.youtube.com/watch?v=kBnx9lMS3zE Level 52 Monk with Shattering Hammer (9/30) as Throwing Weapon in the Ranged Slot] 
 
1. Wrath = 121 Throwing Skill + ((144 STR * 2) - 150) / 3 + 0 Worn ATK + 40 Spell ATK from [[Celestial_Tranquility]] = 207 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (207 Wrath - 80 minusFactor) / 2 = 63 rounded down 
3b. Extra Percent = 100 + (63 Base Bonus * 1.0 Random Value) = 163 
3c. DamageDone = (9 Weapon Damage * 2 RolledD20 * 163 ExtraPercent) / 100 = 29 rounded down 
4. 29 + 0 Main Hand Damage Bonus = 29 
 
Max Damage Calculated = 29 
Max Damage Recorded = 30 
 
169 hits out of 290 hits total are below or at Weapon Damage * 2 (18 Damage). That is a ~42% chance to hit above Weapon Damage * 2 (18 Damage). 
 
[https://www.youtube.com/watch?v=Lq9pc6ew8zQ Level 60 Shadowknight with Weighted Axe (45/150) in the Main Hand, Talisen Bow (25/50) in the Ranged Slot, 1 Damage Arrows in the Ammo Slot] 
 
1. Wrath = 68 Archery Skill + ((206 STR * 2) - 150) / 3 + 16 Worn ATK + 20 Spell ATK = 191 rounded down 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (191 Wrath - 65 minusFactor) / 2 = 63 rounded down 
3b. Extra Percent = 100 + (63 Base Bonus * 1.0 Random Value) = 163 
3c. DamageDone = (26 Weapon Damage * 2 RolledD20 * 163 ExtraPercent) / 100 = 84 Damage / 2 Archery Penalty = 42 rounded down 
4. 42 + 110 Main Hand Damage Bonus = 152 
 
Max Damage Calculated = 152 
Max Damage Recorded = 155 
 
142 hits out of 268 hits total are below or at ((Weapon Damage * 2) / 2) + Main hand Damage Bonus (136 Damage). That is a ~48% chance to hit above ((Weapon Damage * 2) / 2) + Main hand Damage Bonus (136 Damage). 
 
''' Additional Damage Calculation Examples ''' 
Press the expand button to see more damage calculation examples. 
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[https://www.youtube.com/watch?v=2OvIG5q_tYQ Level 52 Monk with Tranquil Staff (29/30) in the Main Hand] 
 
1. Wrath = 244 2Hand Blunt Skill + ((144 STR * 2) - 150) / 3 + 0 Worn ATK + 40 Spell ATK from [[Celestial_Tranquility]] = 330 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (330 Wrath - 80 minusFactor) / 2 = 125 
3b. Extra Percent = 100 + (125 Base Bonus * 1.0 Random Value) = 225 
3c. DamageDone = (29 Weapon Damage * 2 RolledD20 * 225 ExtraPercent) / 100 = 130 rounded down 
4. 130 + 16 Main Hand Damage Bonus = 146 
 
Max Damage Calculated = 146 
Max Damage Recorded = 144 
 
449 hits out of 1070 hits total are below or at Weapon Damage * 2 + Main hand Damage Bonus (74 Damage). That is a ~58% chance to hit above Weapon Damage * 2 + Main hand Damage Bonus (74 Damage). 
 
[https://www.youtube.com/watch?v=YXh1lQyRZ_A Level 52 Monk with Epic Fist (9/16) in the Main Hand] 
 
1. Wrath = 231 Hand to Hand Skill + ((141 STR * 2) - 150) / 3 + 0 Worn ATK + 0 Spell ATK = 275 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (275 Wrath - 80 minusFactor) / 2 = 97 rounded down 
3b. Extra Percent = 100 + (98 Base Bonus * 1.0 Random Value) = 197 
3c. DamageDone = (9 Weapon Damage * 2 RolledD20 * 198 ExtraPercent) / 100 = 35 rounded down 
4. 35 + 9 Main Hand Damage Bonus = 44 
 
Max Damage Calculated = 44 
Max Damage Recorded = 44 
 
325 hits out of 713 hits total are below or at Weapon Damage * 2 + Main hand Damage Bonus (27 Damage). That is a ~55% chance to hit above Weapon Damage * 2 + Main hand Damage Bonus (27 Damage). 
 
[https://www.youtube.com/watch?v=YXh1lQyRZ_A Level 52 Monk with Imbued Fighter Staff (38/40) in the Main Hand] 
 
1. Wrath = 244 2Hand Blunt Skill + ((141 STR * 2) - 150) / 3 + 0 Worn ATK + 0 Spell ATK = 288 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (288 Wrath - 80 minusFactor) / 2 = 104 
3b. Extra Percent = 100 + (104 Base Bonus * 1.0 Random Value) = 204 
3c. DamageDone = (38 Weapon Damage * 2 RolledD20 * 204 ExtraPercent) / 100 = 155 rounded down 
4. 155 + 18 Main Hand Damage Bonus = 173 
 
Max Damage Calculated = 173 
Max Damage Recorded = 171 
 
135 hits out of 288 hits total are below or at Weapon Damage * 2 + Main hand Damage Bonus (94 Damage). That is a ~54% chance to hit above Weapon Damage * 2 + Main hand Damage Bonus (94 Damage). 
 
[https://www.youtube.com/watch?v=P5ouLQOBAoE Level 60 Shadowknight with Frostwrath (24/22) in the Main Hand] 
 
1. Wrath = 225 1Hand Slash Skill + ((231 STR * 2) - 150) / 3 + 10 worn ATK from [[Aura_of_Battle]] + 6 worn ATK from [[Blazing_Gauntlets_of_Fennin_Ro]] = 345 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (345 Wrath - 65 minusFactor) / 2 = 140 
3b. Extra Percent = 100 + (140 Base Bonus * 1.0 Random Value) = 240 
3c. DamageDone = (24 Weapon Damage * 2 RolledD20 * 240 ExtraPercent) / 100 = 115 rounded down 
4. 115 + 11 Main Hand Damage Bonus = 126 
 
Max Damage Calculated = 126 
Max Damage Recorded = 127 
 
408 hits out of 1050 hits total are below or at Weapon Damage * 2 + Main hand Damage Bonus (59 Damage). That is a ~61% chance to hit above Weapon Damage * 2 + Main hand Damage Bonus (59 Damage). 
 
[https://www.youtube.com/watch?v=GaSK9j0Fn1c Level 25 Warrior with Wurmslayer (25/40) in the Main Hand] 
 
1. Wrath = 130 1Hand Slash Skill + ((157 STR * 2) - 150) / 3 + 0 Worn ATK + 0 Spell ATK = 185 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (185 Wrath - 80 minusFactor) / 2 = 52 rounded down 
3b. Extra Percent = 100 + (52 Base Bonus * 1.0 Random Value) = 152 
3c. DamageDone = (25 Weapon Damage * 2 RolledD20 * 152 ExtraPercent) / 100 = 76 
4a. 76 + 0 Main hand Damage Bonus = 76 Max Damage 
4b. 76 + 5 * 1.7 = 137 rounded down 
4c. 137 + 0 Main Hand Damage Bonus = 137 Max Critical Hit Damage 
 
Max Damage Calculated = 76 
Max Damage Recorded = 76 
Max Critical Hit Damage Calculated = 137 
Max Critical Hit Damage Recorded = 134 
 
606 hits out of 873 hits total are below or at Weapon Damage * 2 (50 Damage). That is a ~31% chance to hit above Weapon Damage * 2 (50 Damage). 
 
[https://www.youtube.com/watch?v=o_8b4D0h49g Level 24 Cleric with Poison Wind Censer (20/28) in the Main Hand] 
 
1. Wrath = 100 2Hand Blunt Skill + ((128 STR * 2) - 150) / 3 + 0 Worn ATK + 0 Spell ATK = 135 
2. RolledD20 = 20 / 10 = 2 
3a. Base Bonus = (135 Wrath - 80 minusFactor) / 2 = 27 rounded down 
3b. Extra Percent = 100 + (27 Base Bonus * 1.0 Random Value) = 127 
3d. DamageDone = (20 Weapon Damage * 2 RolledD20 * 127 ExtraPercent) / 100 = 50 rounded down 
4. 50 + 0 Main Hand Damage Bonus = 50 
 
Max Damage Calculated = 50 
Max Damage Recorded = 49 
 
497 hits out of 586 hits total are below or at Weapon Damage * 2 (40 Damage). That is a ~15% chance to hit above Weapon Damage * 2 (40 Damage). 
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''' Damage Bonus '''
Starting at level 28, a damage bonus is applied to all 2-handed and main-hand 1-handed weapons. For the full table of values see https://lucy.allakhazam.com/dmgbonus.html?setcookie=1.
The 1-hand bonus is constant per level, while the 2-hand bonus scales with delay, the higher delay having a higher bonus. For this reason, players who use 1-handed weapons often prefer a low-delay mainhand weapon so that the damage bonus is applied more frequently.

Prior to level 28, and for off-hand 1-handers, the rule of thumb for comparing weapons is:

(2 * damage) / delay

When the damage bonus is applicable, the rule of thumb becomes:

(2 * damage + bonus) / delay

Combat Mechanics - Revision history

imported>Deathssilkymist: /* Calculations for Melee, Archery, and Throwing Damage */