Re: Sims Medieval Error Code 12 and 13 keep happening when saving.

@YeOldSimmer , I'm afraid the only solution to your problem is to keep saving under different file names. The only reason imaginable at this time is that something in Windows 10 (which I am guessing you are playing on) interferes with the way the game saves files. You can also try pausing the game right before you save and then unpause and save. Not sure if that works, but you can try it.

Please let me know if this works.