Chemistry System

Chemistry System – Latest Version

Adding a trait allows you to add any personality trait for your sims to like or dislike! The number on the right shows how much it affects their feelings towards another sim.

The rest of the options are self-explanatory.

In Live Mode, when meeting other sims, if your sim feels something, they’ll let you know.
Their mood will also change depending on who they’re around with.

This page is where the latest version of the mod lives. You can link to this page instead of having to change links for each update.

This mod requires Scumbumbo’s XML Injector to be installed!  

Download version 9d (SimFileShare)

Release Notes


I’ve been working on updating the Chemistry System to be up to date. It is now up to date to 1.69. Previously, adding skill preferences broke the game.
All critical bugs regarding adding preferences have been fixed along with some code cleanup to make maintaining the mod easier.

The translations have been updated too.


  • Yuki – French Translation
  • Esquire Dumper – Russian Translation
  • Miaow_CC – Chinese Translation
  • Ayrthwil – Portuguese Translation
  • mqkry – Polish Translation


Thanks to these patrons for helping me keep modding!

1997, Aiden Gardner, Alexandra Iordache, alexismcmillion, Allophenic, Amanda Kenny, Amy Villanueva, Anette, Angel, annieholmes, April Marisette, Ari R, Aurore Richard, austin, Ayame Aya, Bella, Berman Comon, Beth Turvey, Bianca van den Berg, BlackPiano, Britny Ranae Muehl, Caitlyn King, Callum Jeffery, Cara-Susan Fraser, Carl’s Guides, Caroline Van Rooyen, chrs seamon, cija noakes, CJ, Claire Futrell, CNTJManoi, constanza diaz meyer, Dana Slade, Dani, Danielle Knox, Danutsa, Deanna, Desiree Lamadieu, Diogo Catanho, Dlynx Migs Manalac, dreamteam67, eee, Elias, EllenRipley426, Emi, Emily, Emma Oppenlander, erica, GE Nova, Gen Salinas, ghjdi, Gill Reid, Gill Reid, Hanneke Bywater, Hinke, Ingrid Ludvigsen, Inzilith, Jack, James Goldston, James R Jonewell, Jasmin Wilson, Jason Beck, Jaz Cooper, Jeff Tansworth, Jenna Andrews, Jenny Cala, Jesse Hoffman, jessica morris, Joe Novinson, Juan Fernando Escobar, Julian, Junk Mail, Karina Li, Kathy Lum, Kenta, Kerry McArthur, Kevin Neighbors, Kiira Christopherson, KmrHackrz, lani, Laura, Lena Marie, Life With Victoria, LiL, Lila, Lore Krajsman, Lovely Londyn, lukas, Lunaviney, Mani James, Marnie Belle, michela santori, Michele, Miguel M, Miriah Reid, missy sanders, MizoreYukii, Molly Reardon, monique, Monique, Monique, morticia flowers, Nadine, Natasha Davis, NewChallenger17, Nneka Taylor, Notability – Austin Gieselman -, Odyssea, Olayinka Joseph, Olivia Heart, OmegaLPS, osamabincapping, Parise Hinds-Green, peeradon ekapisit, Peter cellarius, Plumb, Porscia, quixoticlanguor, Rafael Veitenheimer, Rokas Kuzmickas, romy panayiotis, RĂ©mi Picard, Samantha Gamache, Sancho Rodriguez, sheila e malis, Siearra Spencer, Stephanie Soto, SweetLilja, Tammy Thomas, Tanya Willadson, tayler henry, Tess, Tiyaun rucker, TURBODRIVER, Uvonne Jones-Most, Valience, Vanesa Vega A Darme, Vanessa Metellus, Veronica Trudeau, Veronica Waters, Wakeisha, Wanda Jones-Most, William Tunnicliff-Rosser, wolf007, Yossaporn Poarung

Interactions from the Past

Vote on allowing Interactions from the Past objects to be downloaded separately!

Hey guys, I have a poll! Vote on whether you think allowing you to download objects from Interactions from the Past separately, so you can pick and choose what objects to put in your game.


Back to modding!

I’ve decided to return to modding after a break. Thanks everybody!


Welcome to my site!

Here, you’ll find tutorials, animations and poses for The Sims 4.