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When I load my 1,400 hour, 220mb save, Factorio crashes (see log file for details). The last three autosaves from this map also crashes in the same manor. I have tried on another computer and the same crash happens. I am able to load other (and smaller) maps without error. I have mods Power Armor MK3 and spidertron-extended loaded. The game crashes with and without the mods loaded.

Saved Games and mods: https://1drv.ms/u/s!AsPDUmj27u6KnGKXzlb ... j?e=a6IJ1h

Log file:

Do you have any way to take a known good version of the save and get it to this broken state?

There are several crash issues with modding spider vehicles and you have a mod installed that does just that so I'm likely to blame it on that. However without a way to get it into this broken state all I can see is the save is corrupt.

Sadly I do not, I usually use the auto-saves as backup, and all the autosaves are similarly corrupt. Thanks for trying, I do appreciate the time you took to look. This might be a blessing in disguise, it gives me a reason to make a new game.

There was another similar report that seems to be directly applicable to this report. When I tested it on behalf of the reporter, I found that simply disabling Spidertron Extended cured the crashes. That report also references the possible cause as per @Rseding91

See Corrupted save and autosaves [1.0]

It might work for your monster duration game too.
Good luck.

[Edit to Add]

Unfortunately, it doesn't seem as simple with your saves. I have tried a number of methods to try and load them, but all result in a crash at the end of loading. 18.0 save's thumbnail shows the eight legged Spidertron, and those extra legs seem to be at the heart of the problem. This is said to be fixed in the next release, but whether it allows you to continue with your game remains to be seen.

I'm sorry my suggestion was of no use.

I have tried all autosaves with the spidertron mod disabled. It looks like its all broken, oh well, the game was running at 15 UPS anyway. Time to move on to a new game, with a new strategy.

I do appreciate the time, and effort to try to assist, Wube and the Factorio community are pretty great.

ardwin wrote: ↑Tue Sep 08, 2020 10:57 pm I do appreciate the time, and effort to try to assist, Wube and the Factorio community are pretty great.

You're welcome, and agreed, this community is one of the best.

If I may offer a tip for those extended games?

If you edit config.ini in the /config folder at the root of the game, you can extend the number of autosaves, and the autosave period. Here's what I currently use: This gives me 8 hours in 30 minute intervals to undo the (many) mistakes I have made, and might save you losing so much of your gameplay in future. I also hard save with a named save at the end of each play session.

Enjoy your new game!

I already set up 300 autosaves, (I have tons of free space). I am really not unhappy at losing this save, it was getting long in the tooth. It lets me focus on other things during the day, like my job.