Strange, I have only "autosave-compression-level" and "muliplayer-compression-level" Autosave level is set to maximum already, as I mentioned before, I set multiplayer level also to maximeum, let's see what will happen

You are right but... if save file size would change due tick-to-tick gamestate changes it will result with random size difference: sometimes manual save and sometimes autosave should be bigger. In my case manual save is ALWAYS bigger.
I am not familiar with editor mode - a good "howto" online?

No, I am not Nilaus I named my save by him, because in this game I use some of his blueprints. Well, a lot. I don't know if my base is huge, now it's about 27k SPM, but a little chaotic in design. My design from begining, not savegame file from net.

Is there different setting for compression of autosaves? I thought only one setting available affects all saves, auto and manual ones.

I unpacked both files: exept descriptor files (json, preview etc) every single .dat file has different size. About 5-20% bigger are manual saves.

There is only few seconds time between both saves. How much could change in game in such liitle time span?

Hi,
where comes file size difference between savegame and autosave from? In my case it's 816 vs 730 MB files, saved one by one. Restoring game from both gives same results. So why one is much bigger than other?

Ok, mod did the job, but at cost of discovered terrain. Now it's harder to plan expansion
Edit:
Now, how to enable radars? They stopped, I can't play without it...

I encountered a problem by game saves sync over Steam Cloud. I build megabase and gamesaves even at maximum compression are too big to be synced - limit is 400MB. Setiings, mods, achivements are syncing with no problem. Do you have any idea how to make gamesaves smaller? Btw, why autosaves are ...