How to install, fix and find answers

Confirm that Enable Custom Content and Mods and Script Mods Allowed are both ON in Game Options. Restart the game completely (not just back to main menu). Then check where the files are: .package files can sit up to five subfolders deep inside Mods, but script files (.ts4script, used by gameplay mods) are only read directly in Mods or one subfolder deep. Gameplay mods also need to be unzipped, the game ignores anything still inside a .zip.

The most common cause is conflict with another map mod. The Sims 4 only allows one map replacement per world at a time. Remove other replacements for the same world and try again. If it still happens, please submit a bug report with a description and your lastException log.

Some browsers flag .package and .zip files from unfamiliar sites as unknown. The file comes straight from the site’s own storage through a private, short-lived link, the same file other patrons download. Click Keep or Allow in the browser warning.

After an update, The Sims 4 may turn mods off. Re-enable them in Game Options → Other and restart the game. Map replacements rarely break with updates because they don’t touch script logic. Gameplay mods can, so if one stops working after a patch, check its page for a new version or file a bug report and I’ll check.

When the game hits an error, it drops a lastException.txt file in your Documents/Electronic Arts/The Sims 4/ folder. Attaching it to a bug report helps me pinpoint conflicts much faster than just a description.

No. My map replacements are only a few MB each and reuse the base game’s geometry, so they don’t add load time or affect performance. You can install several without noticing.

No. Map replacements are visual overrides loaded by the game on top of your saves. They don’t modify save files, sims, builds, or progress. You can install, remove and switch between map mods freely.

No. The new map shows up in any save, new or existing. The next time you visit the world, the replacement is applied automatically.

Yes, as long as they’re for different worlds. Two replacements for the same world will conflict and one will simply not load. Always remove the old version before installing a new one for the same world.

That’s the plan. I’m working through them progressively. The order depends on what feels exciting to me at the time and what ideas I have, not necessarily by release date or popularity. You can vote for upcoming worlds on the homepage to help me prioritise.

The pace is irregular. Some weeks I’ll ship something new, others I won’t touch the project. I try not to leave too long between releases, but this is a hobby and life happens. The Patreon and the homepage always reflect the latest state.

Yes. They’re much more complex than map replacements and need ongoing maintenance, so I only release one when I’m confident it’s solid. No date set.

Map replacements are always free for any Patreon login. Gameplay mods are free with the free Chatelain membership on Patreon. Some may have paid early access for higher-tier patrons first, but nothing is locked behind a paywall permanently.

It lets me track downloads honestly (so I know what to make next) and prevents bots from scraping the file links. You don’t need to be a paying member: any Patreon account works for maps, and gameplay mods only need the free membership.

The download link is tied to your login, so a copied URL won’t work for someone else. They’ll be redirected to login first. If you want to recommend a mod, share the public mod page (e.g. chatelainsims.com/maps/sulani) instead.

Please don’t. I keep everything in one place so I can update it, fix bugs, and keep version history honest. Reuploads end up out of date and create confusion. If you want to recommend the work, link to the mod page on the site or the Patreon post.