OneWayFacility

Upon entering the facility from any entrance, the door you entered will lock behind you. A grace period is granted so that you may instantly leave if a monster or something appears at the entrance. After the grace period the door is sealed and you will have to find another door to exit the facility.

This mod intends to force you to go through the facility rather than picking up a few items and leaving right away. Alternatively you may use a key (if enabled in config) to unlock a sealed door. After exiting the first time you can re-enter and leave from any exit as if the mod isn't even there.

The mod automatically checks for dead ends and leaves any fire exit or main entrance open if it detects there would be no way to escape after sealing.

v1.5.0 -

You can now force fire exits to generate further away from the main entrance, the way the mod works is it takes the distance of the furthest fire exit from the main entrance and divides it into 10 segments. If you change the "fire exit distance range" to 5 then fire exits can spawn hallway through the facility all the way to the furthest fire exit. By default its set to 10 and only the furthest segment allows fire exits to generate. Major warning that all of this fire exit stuff can be very buggy with custom moons (i.e ghost fire exits intended to be deleted by the mod but still appear to be there, although they wont work as if they are deleted).

There is also now a setting to force all outside fire exits to go to the same indoor one, again buggy so try at your own risk.

Because of this new stuff being buggy with fire exits you can have my mod disable fire exit changes on any moon or interior to help overcome broke logic on custom moons or disable the mod entirely for specific moons/interiors.