The exterior doors (vents) can be used to vent oxygen from the ship's rooms into space. This facilitates in extinguishing fires and allows for both harming boarders with manipulating them out of a room. Having less than 5% oxygen in a room damages non-immune crew inside for 6.4 damage per second. Fires begin to "die out" once oxygen in the room drops below 10%.
Rooms can be pre-vented to protect system from being destroyed by non-immune boarders and quickly put out fires.
Venting is faster with multiple opened airlocks, and also faster if you turn the O2 system off; breaches and Lanius will add to the venting speed.
How long it takes for a fire or fires to die out is determined by a timer, ranging from 5 to 14 seconds. The timer is affected by the number of adjacent fires (including those in adjacent tiles of nearby rooms not separated by walls, i.e. only the door tiles count) and is governed by the formula: (5 - <number of adjacent fires>) * 0.48. So, no adjacent fires will result in a fire being burned out as quick as in 2.08 seconds or as long as in 5.83 seconds, and 4 adjacent fires will result in prolonging the burning out of a fire to a maximum of 29.17 seconds. (for more details, see Fire oxygen starvation)
See also[]
- For extended information on oxygen, specifics about its loss due to breaches and equalizing between rooms, oxygen data.