If a submarine ventures below crush depth, its walls begin to damage progressively and will eventually break too fast to be repaired.
The default crush depth value is 3500 meters. Hull upgrades give an additive bonus of 6% extra crush depth per upgrade level, and the Deep Diver class gives an additional bonus of 20% to the submarine's crush depth.
Therefore, the equation for a submarine's crush depth is 3500 * (1 + (upgradeLevel * 0.06)), or 3500 * (1.2 + (upgradeLevel * 0.06)) for a Deep Diver.
Below is a table listing the crush depths for normal and deep-diver class submarines based on the number of hull upgrades they have.
|Hull Strength Upgrade level||Submarine Class|
|Baseline||3500 m||4200 m|
|Level 1||3710 m||4410 m|
|Level 2||3920 m||4620 m|
|Level 3||4130 m||4830 m|
|Level 4||4340 m||5040 m|
|Level 5||4550 m||5250 m|
|Level 6||4760 m||5460 m|
|Level 7||4970 m||5670 m|
|Level 8||5180 m||5880 m|
|Level 9||5390 m||6090 m|
|Level 10||5600 m||6300 m|
These numbers may be slightly off from their real in-game values due to floating point rounding errors.
The maximum allowed depths for humans with different gear/talents/afflictions are listed below. The highest depth value takes priority.
- Default - 0 meters
- Diving Suit - 4,000 meters
- Combat Diving Suit - 6,000 meters
- Slipsuit - 6,000 meters
- PUCS - 6,000 meters
- Abyss Diving Suit - 10,000 meters
- Water Prankster with Clown Power - Immune to pressure
- Pressure Stabilized - Immune to pressure
- Husk Infection Advanced Stage - Immune to pressure (Excluding the Abyss)
If humans descend below these depths without the proper gear, they will implode and die after a short delay.