#6

26th Aug 2025 at 5:39 PM
Legacy Edition is, as far as I've heard, nearly completely unmodified Complete Collection running on a different engine (the engine is in the exe). The main things I've heard (I don't own Legacy) that relate to manual non-retail-edition-compatible changes to files other than the Sims.exe file (even if they're engine-related) are the following:
- An iff has been added or modified that adds options to change the resolution in-game (this was added in a patch to Legacy and was not there in the first version released)
- Its default install location is different than the default install location for retail discs
- The engine has been modified to use UserData from a separate location in the user's folders instead of the install folder, which allows it to run without administrator privileges
- It does not create most registry entries that a retail disc copy would create, which is why some old programs believe The Sims is not installed, particularly if you don't have a way to manually point them to your Sims install folder
(Some other files could be different, i.e. splash images or thumbnails in newly created characters, but those are things the original retail copy would probably understand and be able to work with, whereas the above are things that the retail game would either ignore/not do/encounter problems with.)
It is possible to add registry entries in the same format as a Complete Collection retail disc would add to the registry (but with the InstallPath and such changed to where your game is actually installed). This will not affect how Legacy Collection runs since it does not make use of those entries, but it WILL allow tools that rely on the registry to find your game files to work, presuming they don't need to modify UserData (since the versions in the install folder are not the used versions). Heck, the provided paths in the registry info here, if used unmodified, would break my own retail copy (which is running on a literally identical engine to Complete even though it isn't Complete but is Deluxe plus the other EPs) because it's not pointing to my install location. That's why it's important to know you need to change those if your game is not installed to that location. (The text here uses double backslashes; I don't know if that imports to the registry as single slashes, if not you may need to make sure they're single slashes.)
I've heard it's inadvisable to use some specific programs (SimEnhancer, for instance) with Legacy Edition, even if you manage to get them to find not only your game files but your UserData, which implies some engine changes are incompatible with SOMEthing that program is changing in the neighborhood files, but plenty of other programs will work just fine if they can find your game files.
As for Sims Creator being in a specific place--while I've never even seriously tried to run it on Windows 10, it's installed to [boot drive letter, i.e. C:]\Program Files (x86)\Maxis\The Sims Creator under normal circumstances when done alongside a Sims Deluxe install that's placed in [boot drive letter, i.e. C:]\Program Files (x86)\Maxis\The Sims