When do enemies despawn?

[Versepelles]

Specifically, under what circumstances do biters, spitters, and worms despawn? A mod of mine allows these entities to be on the forces with cease-fires towards the player which works fairly well, except that my "zoo" would occasionally become empty.



It seems that the biters and and spitters will despawn after a while- not sure if it's distance from player, time-to-live or something similar, or some path-finding issue. Any insight into how this works or potential fixes would be appreciated.

[orzelek]

Are your biters also on cease fire with enemy biters?

I'd guess that they try to path to incoming attack and get despawned then.

[Versepelles]

Are your biters also on cease fire with enemy biters?

I'd guess that they try to path to incoming attack and get despawned then.

They are on cease fire with all forces. They also all pace clockwise in their enclosures, without stopping or otherwise deviating, if that is interesting at all.