Corrosive gas

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corrosive gas
Corrosive gas
Inhaled?Whether this gas is
respiration-based

no

Seeping?Whether this gas can
seep through walls

yes

Character

ID?Use this ID to Wish for the item

AcidGas

Spawns in

AjiConch

corrosive gas

Even now the nimbus of vaporized acid is condensing, starting to settle on its colonized surfaces, starting to sink through their soft edges.

Perfect

Corrosive gas is a damaging gas that can seep through walls and other occluding objects, often destroying them in the process.

Sources

Common sources of corrosive gas, with their level and density, include:[1]

Source Gas Level Gas Density Reference
Corrosive gas generation mutation.pngCorrosive Gas Generation Mutation Level 800 per turn, divided evenly into adjacent squares [2]
Billowing conch of the aji.pngbillowing conch of the Aji 5 800 per turn, divided evenly into non-solid adjacent squares [3]
Acid gas grenade mk i.pngacid gas grenade mk I 1 40 [4][5]
Acid gas grenade mk ii.pngacid gas grenade mk II 1 80 [4][5]
Acid gas grenade mk iii.pngacid gas grenade mk III 1 120 [4][5]
Tartbeard.pngtartbeard or Elder tartbeard.pngelder tartbeard 1 80 [6]
Worker ant.pngworker ant 1 100 [7]
Agolmaggot.pngagolmaggot (on death) 1 60 [8][5]
Defoliant pump.pngdefoliant pump (on item destruction) 1 60 [8][5]
Fungicide pump.pngfungicide pump (on item destruction) 1 60 [8][5]
Fuming vents.pngfuming vents 1 10 [9]
Acid.pngacid (when vaporized) 1 Drams / 20 [10]

Damage

The damage done by corrosive gas depends on the target:[11]

  • Corrosive gas deals damage to creatures and robots.
  • Corrosive gas deals significantly increased damage to:
    • Walls, doors, furniture, chests, statues, and similar objects.
    • Brooding jadepuff.pngbrooding puffs.
  • Corrosive gas deals no damage to anything with the Item tag. This includes all weapons, armor, equipment, scrap, cybernetics, energy cells, garbage, food, trade goods, corpses, books, water containers, urns and vases, quest items, and most other similar items a character might carry around in their inventory. Furniture items, such as Chest.pngchests or Weapon rack.pngweapon racks are affected, but any items within will drop to the ground undamaged.

The following damage formulas are used to calculate corrosive gas damage:[11]

Formula Notes
Creatures and Robots
( Density × GasLevel ) / 200
(rounded up)
Walls and Similar Objects
( 0.75 × GasLevel + 0.25 ) × Density
(rounded up)

In practice, gas damage is highly variable due to a significant amount of randomization involved in gas behavior.

Gas is constantly moving between cells, dissipating over time, merging with other gas, and being affected by random calculations in the game engine. Its density, which is the main predictor of damage, is always changing.

The density of corrosive gas can get much higher than 100 with the Corrosive gas generation mutation.pngCorrosive Gas Generation mutation. With that mutation, a creature releases 100 density units of gas into the cells around them each turn, and can continuously release gas for many turns depending on mutation level. This can result in very high density gas if the mutant releases all gas into the same area without moving.

The following table indicates how much damage corrosive gas of a certain level will do per round, depending on gas level and density. Keep in mind that enemy acid resistance may reduce these numbers.

Gas Level Density Gas damage per round
creatures / robots walls / objects
1 50 1 50
100 1 100
200 1 200
400 2 400
800 4 800
1600 8 1600
2 50 1 88
100 1 175
200 2 350
400 4 700
800 8 1400
1600 16 2800
3 50 1 125
100 2 250
200 3 500
400 6 1000
800 12 2000
1600 24 4000
4 50 1 163
100 2 325
200 4 650
400 8 1300
800 16 2600
1600 32 5200
5 50 2 200
100 3 400
200 5 800
400 10 1600
800 20 3200
1600 40 6400
6 50 2 238
100 3 475
200 6 950
400 12 1900
800 24 3800
1600 48 7600
7 50 2 275
100 4 550
200 7 1100
400 14 2200
800 28 4400
1600 56 8800
8 50 2 313
100 4 625
200 8 1250
400 16 2500
800 32 5000
1600 64 10000
9 50 3 350
100 5 700
200 9 1400
400 18 2800
800 36 5600
1600 72 11200
10 50 3 388
100 5 775
200 10 1550
400 20 3100
800 40 6200
1600 80 12400
Gas Level Density Gas damage per round
creatures / robots walls / objects
11 50 3 425
100 6 850
200 11 1700
400 22 3400
800 44 6800
1600 88 13600
12 50 3 463
100 6 925
200 12 1850
400 24 3700
800 48 7400
1600 96 14800
13 50 4 500
100 7 1000
200 13 2000
400 26 4000
800 52 8000
1600 104 16000
14 50 4 538
100 7 1075
200 14 2150
400 28 4300
800 56 8600
1600 112 17200
15 50 4 575
100 8 1150
200 15 2300
400 30 4600
800 60 9200
1600 120 18400
16 50 4 613
100 8 1225
200 16 2450
400 32 4900
800 64 9800
1600 128 19600
17 50 5 650
100 9 1300
200 17 2600
400 34 5200
800 68 10400
1600 136 20800
18 50 5 688
100 9 1375
200 18 2750
400 36 5500
800 72 11000
1600 144 22000
19 50 5 725
100 10 1450
200 19 2900
400 38 5800
800 76 11600
1600 152 23200
20 50 5 763
100 10 1525
200 20 3050
400 40 6100
800 80 12200
1600 160 24400
Gas Level Density Gas damage per round
creatures / robots walls / objects
21 50 6 800
100 11 1600
200 21 3200
400 42 6400
800 84 12800
1600 168 25600
22 50 6 838
100 11 1675
200 22 3350
400 44 6700
800 88 13400
1600 176 26800
23 50 6 875
100 12 1750
200 23 3500
400 46 7000
800 92 14000
1600 184 28000
24 50 6 913
100 12 1825
200 24 3650
400 48 7300
800 96 14600
1600 192 29200
25 50 7 950
100 13 1900
200 25 3800
400 50 7600
800 100 15200
1600 200 30400
26 50 7 988
100 13 1975
200 26 3950
400 52 7900
800 104 15800
1600 208 31600
27 50 7 1025
100 14 2050
200 27 4100
400 54 8200
800 108 16400
1600 216 32800
28 50 7 1063
100 14 2125
200 28 4250
400 56 8500
800 112 17000
1600 224 34000
29 50 8 1100
100 15 2200
200 29 4400
400 58 8800
800 116 17600
1600 232 35200
30 50 8 1138
100 15 2275
200 30 4550
400 60 9100
800 120 18200
1600 240 36400

References

  1. XRL.World.Parts.Gas
  2. XRL.World.Parts.Mutation.CorrosiveGasGeneration
  3. XRL.World.Parts.AjiConch
  4. 4.0 4.1 4.2 XRL.World.Parts.GasGrenade
  5. 5.0 5.1 5.2 5.3 5.4 5.5 ObjectBlueprints.xml
  6. XRL.World.Parts.Mutation.CorrosiveBreather
  7. XRL.World.Parts.Mutation.GasGeneration
  8. 8.0 8.1 8.2 XRL.World.Parts.Corpse
  9. XRL.World.Parts.WalltrapAcid
  10. XRL.Liquids.LiquidAcid
  11. 11.0 11.1 XRL.World.Parts.GasDamaging