Talk to your Sims. For real.
A mod for The Sims 4. Click a sim, write to them, and they answer as themselves: their traits, their mood, their memories of you. They can agree, refuse, or lie.
The AI writes the words. The decisions come from the game: friendship, mood, needs, traits and your shared past.
A chat window opens over the game. Your sim answers in their own voice, shaped by their traits, mood and what their body needs right now.
Every conversation is remembered, on both sides. Ask "do you remember…?" and the sim fetches what really happened, not something made up.
A tired sim, a recent fight, a stranger: they can refuse. Asking again with other words changes nothing. Pushing too hard costs you the relationship.
A sim who owes you nothing can dodge a subject, keep a secret, or lie about last night. And sometimes, they gossip.
Invite up to four sims into the same conversation. Each one hears what the others say and answers in turn.
Ask for a meal and the sim actually goes to cook it. When you are not looking, sims talk to each other, and you find out later.
An example. Every conversation is different.
No command to type. The installer does everything.
Get Simersion-Setup.exe (about 730 MB). Launch The Sims 4 once and quit it properly before installing.
Double-click the file. It installs the app, the mod in your Mods folder, and turns on script mods in the game options for you.
On first launch, Simersion offers an AI model sized for your PC (4 to 8 GB) and downloads it. One time only.
Start Simersion, then the game. Click a sim and choose "Talk". That's it.
Yes. But Windows and some antivirus programs may warn you, because the file is not signed. Here is why, and what to do.
To remove these warnings, a developer must buy a code signing certificate. It costs between 200 and 500 € per year. Simersion is made by one person, in their spare time, so it has none yet. Your support on Ko-fi can pay for it one day.
A blue window says "Windows protected your PC".
Chrome or Edge may say the file "is not commonly downloaded".
Some antivirus programs block any new file that few people have downloaded yet (for example "IDP.Generic" or "WS.Reputation"). It is a false alarm based on how popular the file is, not on what it does.
Get-FileHash Simersion-Setup.exe. The result must match the sha256 shown next to the file on the GitHub release page.The AI runs on your own graphics card. That is why it stays private, and why it needs a decent PC.
No. The AI runs on your PC. Nothing is sent to a server, there is no tracking, and Simersion works without internet once installed.
Yes. Simersion stays at the level of the base game: romance and WooHoo are understood, never shown or described. You can stream it on Twitch or YouTube.
No. Simersion does not change your save files. Its memories are kept in a separate folder. Remove the mod and your game is exactly as before.
It is a script mod like the others. It works alongside common mods. If something goes wrong, the Diagnostics button in the app makes a zip of the logs you can send me.
French and English. Pick your language in the app and your sims answer in it.
Not yet. Simersion is Windows only for now.
Write to me here. I read everything, and the best ideas end up in Simersion.
Simersion is built in my spare time. If your sims made you laugh, a coffee on Ko-fi or a membership on Patreon helps me keep going and add new things.
On Patreon (5 €/month), you get every new version 14 days before everyone else.