The Sims 3 64-Bit Keeps Crashing on Mac

@krabby_pattiess  Yes, the issue could definitely be your old save.  How much does the save itself matter to you (as opposed to the sims or houses)?  If you'd like, we can go through a number of ways to try to salvage it, including using mods, but you may or may not find it worth the effort.

The first thing you can try is using the backup copy instead.  Inside the Saves folder is a folder for each save plus another folder that contains the data from the second-to-last time you saved.  This is the game's automatic backup.  So you might have folders named SunsetValley.sims3 and SunsetValley.sims3.backup.  Rename the save and remove the .backup extension (e.g. SunsetValley1.sims3), and that save will be available to load from the Main Menu.  If you can play this save forward, and you can also save your progress, then just keep doing so; you'll have lost some progress but hopefully not too much.

If this doesn't work, let me know whether you'd like to pursue this further, including whether you use mods or are willing to try some.  There are also interventions that don't require mods, and we can try those regardless, but you'll have more options if mods are on the table.

I don't mind starting over tbh, idk if my starter sim from that family will work. I will try with the backup copy. I am not seeing my old save in game

@krabby_pattiess  The starter sim should work fine.  The file will be in ... The Sims 3 > Library, and its name will be a very long string of random characters.  You should be able to tell the files apart by their timestamps though, at least if you remember more or less when you created that sim.

I'd definitely suggest making backups going forward.  I use "save as" and rename the save at least once a sim-day so I'll never lose too much data.  I eventually delete the older backups, or at least most of them, when I know I won't need them, but when space isn't a concern I can get lazy about that too.

I found my sim. Can I delete the extra sims 3 folders? I have like 4 of them. 

@krabby_pattiess  Make sure that the Sims 3 folder you're currently using has all the content you want to keep, as in, you see that content when you load the game.  Then yes, go ahead and delete the other folders.  If you're not completely sure you've found all the relevant files, I'd suggest putting them in the trash but not emptying it for a few days just in case you later realize you're missing something you wanted to keep.

Hey @puzzlezaddict thanks for helping others, I hope you can help me with my issue. I have the same problem with the crashing of the sims on mi Mac, I tried updating and fixing the game through Origin but nothing helps, I can play for a bit and let me save the game but usually it just cracks whenever I'm building, playing with my sims or editing the world. I usually play on Riverview but this also happened on the world of Late Night.  

This are the specifications of my Mac:

macOS Monterey 

MacBook Pro (13-inch, 2017)

2.3 ghz Intel Core i5 

8GB 

Graphics Intel Iris Plus Graphics 240 1536 MB 

I have these expansions and accessories: Late night, Generations, Island Paradise, Seasons, Diesel, Master Suite, City Living, World Adventures, Showtime, University Life and High-End Loft. I do have some things from the store installed on my game. I really hope you can help me, I even tried play on window mode but didn't word either. 

@nakdsims  Try turning down the Lighting and Tree Detail options to the minimum.  Do so at the Main Menu, then quit to desktop before loading the save.  If that works, you can try raising one of the settings again by one level and see how it goes.

Hey @puzzlezaddict thanks for the response! I do what you said but it didn't work so well, my game keeps crashing ☹️ i tried restarting the RAM like other posts said but it didn't work either, do you have any other suggestion that can help me? thanks again!

@nakdsims  Please test in a clean user folder.  Move the entire Sims 3 folder out of Documents > Electronic Arts and onto your desktop, and when you launch the game, a clean folder will spawn with no content.  Play while your computer is offline as well; you can sign into Origin and put it in offline mode, then disable wifi before pressing Play.

Don't add anything to the new Sims 3 folder: no mods, no store content, nothing at all, at least not yet.  Just start a new save in Sunset Valley and let me know how it runs.

Your current saves and other content will be intact in the Sims 3 folder you moved but temporarily not read by the game.  That can be addressed later; for now, the point is to test the game in a completely vanilla state.

I'm having the same problem. I can play a new save for a few hours but then it starts crashing within three minutes of starting play. I uninstalled, reinstalled, started a new game, same thing. Play for a couple hours (which means a large part of it is build/buy, not active play) and then crashing. I have a small amount of cc and mods installed, but it happened when I didn't have any cc installed too (since I've run this experiment twice). I've turned down graphics to the lowest settings and it hasn't helped. This has happened in Monte Vista and Twinbrook, so I'm assuming it will in other worlds as well. Help?

My specs:

MacBook Pro (13-inch, 2017, Two Thunderbolt 3 ports)

Monterey 12.5.1

2.3 GHz Dual-Core Intel Core i5

8 GB 2133 MHz LPDDR3

Intel Iris Plus Graphics 640 1536 MB

I have the following packs installed: Late Night, Seasons, Generations, Island Paradise, Ambitions, Into the Future, Showtime, University Life, World Adventures, Movie Stuff, Outdoor Living Stuff, Town Life Stuff.