I just killed a CV ship "Rutile" in space and cored it to salvage, which went fine until I quit the game and reloaded when my new shipwreck despawned of its own accord. This is single player survival and this is taking away my toys which I won fairly and squarely, so please dont do that. I think the removal of unwanted wrecks is fair enough to avoid clutter in MP OK, but it does not apply in SP as much and if it did then if you core the wreck it should not despawn ever and the same applies in MP, if you dont want to keep the wreck dont core it, if you do then coring it should do that for you. The rule the game needs to follow in both SP and MP is if you add a core a NPC wreck, do not despawn it. I am sure you can see the sense of that. Thx.
Most of us would easily settle for them just setting the despawn timer to 1 hour. Then the MP servers still get cleaned up automatically, and a 1-hour timer is NOT a long time, they will still get cleaned up the same. Plus it gives plenty of time to finish your current fight (possible reinforcements) and still have a chance at salvage/loot.
Other thing, I think the despawn happened on system time not game time. I had several saves (in a single player survival game) made at different times with the wreck present and yet they all despawned the wreck immediately after loading, which they wouldnt do if it was an in game timer. So for single player wreck despawn is FUBAR, FYI.
Patrol vessels despawn on render if they no longer have their original core and they are unloaded. Time doesn't matter, you could be gone a minute to reload the save game or hours exploring the rest of the galaxy. Happens in single player or multiplayer. There's no setting to change this behavior.
I have mentioned this several times, how ridiculous are the concepts that control the functioning of basic stuff in this game In this particular case I have made already the case about wrecks, so, we have easily a few hundred thousand systems in the game universe, each of which have in turn several planets and each can have several moons, and all of them, and I mean ALL of them, not a single planet or moon in this game is free of clutter, all have several wrecks, in some systems even the planets space sectors have wrecks. So, the number of wrecks can easily reach the millions in each single player game, most of them is just memory clutter, because no one will ever bother even stopping to look at them, yet they use up memory and clutter the save game Yet, the moment the player makes a wreck of its own, the ONE wreck the player cares about and wants to keep, it's taken away from him... I won't even go into how hard it may have been to stop that patrol vessel or that cargo ship in a single player game in which the player has to contend with CPU and weapons counts and mass and several enemy ships several times bigger than the players all showing up at the same time Space combat should be one of the main focus of this game but it's ultimately pointless if the player can't even in some cases stop his own ship in time to board the enemy ship before it despawns This along with death despawn times should be part of the start game config screen