This guide presents the amount of damage reduction you get from every point of armour, and the formula for calculating it yourself.
Armour Functionality
All credit goes to Shotgun Crusader !
Damage and vitality simply give +1% damage and max health respectively per point, while armour has a formula for how much damage reduction it gives.
It can be calculated as (ARMOUR x 100) / (100 + ARMOUR), so to find the damage reduction for 20 armour you would do (20 x 100) / (100 + 20), becoming 2000 / 120, resulting in 16.6% damage reduction.
Armour to DR Chart
| Armour Points | Damage Reduction (%) |
| 1 | 0.9 |
| 2 | 1.9 |
| 3 | 2.9 |
| 4 | 3.8 |
| 5 | 4.8 |
| 6 | 5.7 |
| 7 | 6.5 |
| 8 | 7.4 |
| 9 | 8.3 |
| 10 | 9.1 |
| 11 | 9.9 |
| 12 | 10.7 |
| 13 | 11.5 |
| 14 | 12.3 |
| 15 | 13 |
| 16 | 13.8 |
| 17 | 14.5 |
| 18 | 15.2 |
| 19 | 16 |
| 20 | 16.7 |
| 21 | 17.3 |
| 22 | 18 |
| 23 | 18.7 |
| 24 | 19.3 |
| 25 | 20 |
| 26 | 20.6 |
| 27 | 21.3 |
| 28 | 21.9 |
| 29 | 22.5 |
| 30 | 23 |
| 31 | 23.7 |
| 32 | 24.2 |
| 33 | 24.8 |
| 34 | 25.4 |
| 35 | 25.9 |
| 36 | 26.5 |
| 37 | 27 |
| 38 | 27.5 |
| 39 | 28 |
| 40 | 28.6 |
| 41 | 29.1 |
| 42 | 29.6 |
| 43 | 30.1 |
| 44 | 30.6 |
| 45 | 31 |
| 46 | 31.5 |
| 47 | 32 |
| 48 | 32.4 |
| 49 | 32.9 |
| 50 | 33.3 |
| 52 | 34.2 |
| 54 | 35.1 |
| 56 | 35.9 |
| 58 | 36.7 |
| 60 | 37.5 |
| 62 | 38.3 |
| 64 | 39 |
| 66 | 39.8 |
| 68 | 40.5 |
| 70 | 41.2 |
| 72 | 41.9 |
| 74 | 42.5 |
| 76 | 43.2 |
| 78 | 43.8 |
| 80 | 44.4 |
| 82 | 45 |
| 84 | 45.6 |
| 86 | 46.2 |
| 88 | 46.8 |
| 90 | 47.4 |
| 92 | 47.9 |
| 94 | 48.4 |
| 96 | 49 |
| 98 | 49.5 |
| 100 | 50 |
| 105 | 51.2 |
| 110 | 52.4 |
| 115 | 53.5 |
| 120 | 54.5 |
| 125 | 55.5 |
| 130 | 56.5 |
| 135 | 57.4 |
| 140 | 58.3 |
| 145 | 59.2 |
| 150 | 60 |
| 155 | 60.8 |
| 160 | 61.5 |
| 165 | 62.3 |
| 170 | 63 |
| 175 | 63.6 |
| 180 | 64.3 |
| 185 | 64.9 |
| 190 | 65.5 |
| 195 | 66.1 |
| 200 | 66.7 |
| 225 | 69.2 |
| 250 | 71.4 |
| 275 | 73.3 |
| 300 | 75 |
| 325 | 76.5 |
| 350 | 77.8 |
| 375 | 79 |
| 400 | 80 |
| 425 | 80.9 |
| 450 | 81.8 |
| 475 | 82.6 |
| 500 | 83.3 |
Armor looks like useless stat in this game for me. DMG is much better.
the maths works out to approx 1 armour = 1% hp
Doesn’t this mean the quick mental math for armor can be done with “effective health added” as well? 100 armor = 50% damage reduction, or effectively 100 extra health if you were at 100 health. This continues all the way up to the highest example number on the table with 500 armor. 83.3% damage reduction is effectively equal to taking 1/6 of the damage, so your effective health would be 600 (with 100 hp).