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Sims 4 Multiplayer Mod

by sims4multiplayer Posted 29th Jun 2019 at 6:31 PM - Updated 18th Jun 2021 at 11:36 PM by sims4multiplayer
158 Comments / replies (Who?) - 18 Feedback Posts, 7 Thanks Posts
This is a featured upload! It showcases the best talent and creativity available on MTS and in the community.


See the mod in action


Join the S4MP community
Installation guide

Note: With the public version you can play only over LAN and the launcher requires no login!
Having trouble with the setup? Join our Discord server for help!


Supported versions:
  • Versions 0.6.1 and later only work with The Sims 4 v1.68.154.1020 or later patches
  • Versions 0.2.1 and later only work with The Sims 4 v1.54.120.1020 or later patches
  • Version 0.2.0 only works with The Sims 4 versions BEFORE v1.54.120.1020 (08/2019) patch

With The Sims 4 Multiplayer Mod, you can play The Sims 4 real-time over the network and “live together” with other players in the same household. See what the others are doing, interact with them, and have fun together!

What does this mod do?
  • This mod allows multiple players to play together with the same save file at the same time over the local network. It's a full script mod packaged with a server application that should be run on one of the PCs participating in the game.

Conflicts
  • There are currently no known conflicts with other mods. (It might conflict with other full script mods though.) Important thing is to have all players the same set of mods/EPs.

How to install

It is necessary to already have a save file with all the Sims created, the house should be built, and all the necessary items should be bought beforehand since currently only Live mode is supported, build & buy mode are in experimental phase. (features might work but there is no guarantee) It is also important to have a save with time paused.

One of the PCs will act as a server and should do the following additional steps:
1. Start the launcher
2. Host a game by selecting an already created save file
3. Start The Sims 4, load the save file and enter your household
4. You should see a notification verifying your game has successfully connected to the server.

The other PC will act as remote client and should do the following additional steps:
1. Start the launcher
2. Join a game by entering the IP address of the host player (displayed in the launcher on the host machine)
3. Start The Sims 4, load the save file and enter your household
4. You should see a notification verifying your game has successfully connected to the server.

At this point you are all set up, feel free to start the time and enjoy the multiplayer The Sims 4 experience! (please note that only the server’s player can control the time)

Is this mod based on other mods? Is it safe to play with the mod?
  • While there are broken multiplayer mods out there, this one is written from scratch and it yields no security vulnerabilities. (If you don't trust it, you can still disconnect your PCs from the internet while you play on LAN.) There are some people out there who claim this mod is based on existing code or has security issues, we've asked them many times to do a developer talk about it, never received any real arguments.







Changelog
  • Changes in 0.10.1
- Fixed time desync bug occurred after travel
- Fixed the bug when a dialog (phone, cook, etc.) appeared on the wrong client
- Inventories now should work properly (items dragging may still have issues)
- Time is paused after traveling until all clients have loaded the new area
- Discord Rich Presence support
- Dream Home Decorator pack support
  • Changes in 0.9.1
- Freely enable/disable expansion packs in the launcher settings
- Stability fixes to avoid dark screen after traveling
- Fixed the unresponsive cursor happening on remote clients after traveling
- Launcher/mod version is now displayed in the launcher
- Read the latest mod related news right in the launcher
  • Changes in 0.8.1
- Fixed the lagging issue between Windows and Mac clients
- Buy mode bugfixes (all clients can sell/remove objects now
- All players can control the time
- The game will automatically disconnect when exiting the game (no more freezes, no need for 'disconnect' command anymore)
- The launcher will enable third party content & script mods automatically for the game
  • Changes in 0.7.1
- Initial buy mode support (buy & move objects)
- Basement object interaction fix
- Fixed launcher error popup when disconnecting from the game
  • Changes in 0.6.1
- Fixed the issue of client players not able to interact with anything in patch 1.68
  • Changes in 0.6.0
- 12 player support
- more travel fixes (infinite load, neighbor lots, etc.)
- fixed start game button in Mac launcher
  • Changes in 0.5.4
- travel fixes (infinite load, neighbor lots, etc.)
- game is automatically paused until both players have finished loading
- automatic save sync
- chat with the other player using 'chat <your message>' in the game console (CTRL + SHIFT + C)
- no need for 'mp.c' command, the game automatically connects (use 'disconnect' command when leaving the game)
- mod file (ts4script) is now installed automatically
  • Changes in 0.3.2
- travel support
- server application for MacOSX
  • Changes in 0.2.1
- support for breaking changes introduced in v1.54.120.1020 patch (released 08/08/2019)
  • Changes in 0.2.0
- added a tool which configures Windows Firewall properly for the server application
- documentation improvements

You must have the expansion, game version or stuff packs listed below installed to use this custom content. Please see the post text for any exceptions.

Sims 4
Built with Game Version: v1.68
Key: - File was updated after upload was posted
Filename - Tip: You can click the magnifying glass to see the archive contents Size Downloads Date
S4MP Online Launcher-0.10.1-public-mac.zip

Size: 81.01 MB · Downloads: 3,480 · 11th Jun 2021
81.01 MB 3,480 11th Jun 2021
S4MP Online Launcher 0.10.1-public-win.zip

Size: 47.82 MB · Downloads: 9,011 · 11th Jun 2021
47.82 MB 9,011 11th Jun 2021
S4MP Online Launcher-0.8.1-public-mac.zip

Size: 80.34 MB · Downloads: 10,957 · 22nd Feb 2021
80.34 MB 10,957 22nd Feb 2021
S4MP Online Launcher 0.8.1-public-win.zip

Size: 47.34 MB · Downloads: 33,381 · 22nd Feb 2021
47.34 MB 33,381 22nd Feb 2021
S4MP Online Launcher-0.7.1-public-mac.zip

Size: 80.20 MB · Downloads: 10,920 · 15th Dec 2020
80.20 MB 10,920 15th Dec 2020
S4MP Online Launcher 0.7.1-public-win.zip

Size: 47.27 MB · Downloads: 25,130 · 15th Dec 2020
47.27 MB 25,130 15th Dec 2020
S4MP Online Launcher-0.6.1-public-mac.zip

Size: 69.29 MB · Downloads: 4,444 · 10th Nov 2020
69.29 MB 4,444 10th Nov 2020
S4MP Online Launcher 0.6.1-public-win.zip

Size: 43.90 MB · Downloads: 11,483 · 10th Nov 2020
43.90 MB 11,483 10th Nov 2020
S4MP Online Launcher-0.6.0-public-mac.zip

Size: 69.27 MB · Downloads: 3,180 · 13th Oct 2020
69.27 MB 3,180 13th Oct 2020
S4MP Online Launcher 0.6.0-public-win.zip

Size: 43.89 MB · Downloads: 7,844 · 13th Oct 2020
43.89 MB 7,844 13th Oct 2020
S4MP Online Launcher-0.5.4-public-mac.zip

Size: 69.29 MB · Downloads: 3,088 · 2nd Sep 2020
69.29 MB 3,088 2nd Sep 2020
S4MP Online Launcher 0.5.4-public-win.zip

Size: 43.88 MB · Downloads: 9,478 · 2nd Sep 2020
43.88 MB 9,478 2nd Sep 2020
S4MP_0.3.2-Win.zip

Size: 22.66 MB · Downloads: 80,667 · 1st Mar 2020
22.66 MB 80,667 1st Mar 2020
S4MP_0.3.2-MacOSX.zip

Size: 23.21 MB · Downloads: 12,464 · 1st Mar 2020
23.21 MB 12,464 1st Mar 2020
S4MP_0.2.1.zip

Size: 25.73 MB · Downloads: 39,462 · 9th Aug 2019
25.73 MB 39,462 9th Aug 2019
S4MP_0.2.0.zip

Size: 25.75 MB · Downloads: 26,375 · 2nd Jul 2019
25.75 MB 26,375 2nd Jul 2019
Don't forget to Thank the creator after downloading! Use the Thanks button located above the screenshots above.
Basic Download and Install Instructions:
1. Download: Click the File tab to see the download link. Click the link to save the .rar or .zip file(s) to your computer.
Read the upload description for installation instructions. If nothing else is specified, do the following:
2. Extract: Use WinRAR (Windows) to extract the .package file(s) (if included, ts4script as well) from the .rar or .zip file(s).
3. Cut and paste the .package file(s) (if included, ts4script as well) into your Mods folder
  • Windows XP: Documents and Settings\(Current User Account)\My Documents\Electronic Arts\The Sims 4\Mods\
  • Windows Vista/7/8/8.1: Users\(Current User Account)\Documents\Electronic Arts\The Sims 4\Mods\

Need more information?
  • Anyone can use both .rar and .zip files easily! On Windows, use WinRAR.
  • If you don't have a Mods folder, just make one.
  • Mod still not working? Make sure you have script mods enabled
 
158 Comments / Replies (Who?) - 104 Feedback Posts, 44 Thanks Posts
Hide Thanks Posts for this thread (Show only feedback)
Page 6 of 7
Test Subject
#126 Old 31st Jan 2021 at 8:32 PM
Hi, Thanks for your nice work on this project

But i got a little problem, my sims 4 is in french and the folder that sims 4 create in C:\Users\jorda\Documents\Electronic Arts is name "Les Sims 4" when your sims 4 is in french so, when i select with the launcher it's said "that doesn't seem to be the correct path" can you help me?

I create manualy a folder name the sims 4 and it work, but my Sims 4 game don't use this folder.

is there a config file that i can edit to bypass this message ou it need software fix?
Test Subject
#127 Old 1st Feb 2021 at 6:34 PM
Default The time in the game is lagging behind
I have a problem!My friend is running out of time with my time in the game!What to do?Help!
Test Subject
#128 Old 6th Feb 2021 at 8:03 PM
Quote:
Originally Posted by Ralkory
I have a problem!My friend is running out of time with my time in the game!What to do?Help!


The problem was that the time on the friend's computer was lagging behind mine.
Test Subject
#129 Old 1st Mar 2021 at 9:21 AM
Buongiorno, io un problema con il S4MP online launcher.
Ho la versione che si ha dopo essersi abbonati su patreon, quindi la versione con il "play online".
Solo che ho un problema: riesco ad entrare in una partita con i miei amici ma non riesco a giocare. Il tempo è sempre in pausa e sia a me che al mio amico appare questo messaggio: "You must wait for the other players before starting time". Questo messaggio mi compare quando i miei amici sono in gioco.
Come posso fare per risolvere questo problema?
Thanks
Test Subject
#130 Old 3rd Mar 2021 at 2:28 PM
My question is, will this mod be updated for version 1.71.86.1020?
Test Subject
THANKS POST
#131 Old 5th Mar 2021 at 4:31 PM
How do you get this working? Non of the tutorials are working for me please help me!
Test Subject
Original Poster
#132 Old 5th Mar 2021 at 5:28 PM
Test Subject
Original Poster
#133 Old 5th Mar 2021 at 5:29 PM
Quote:
Originally Posted by Burinis
My question is, will this mod be updated for version 1.71.86.1020?


It does work with that version, too!
Test Subject
THANKS POST
#134 Old 5th Mar 2021 at 6:25 PM
Microsoft Window Protected this app from installing

"Microsoft Defender SmartScreen prevented an unrecognized app from starting. Running this app might put your PC at risk. "

App: S4MP Online Launcher 0.8.1-public.exe
Publisher:
Unknown publisher

-----------------------------------------------------------------------------------------------------------------------

People.... please be careful with this mod. Windows or Mac will recognize this is as a VIRUS threat
Test Subject
THANKS POST
#135 Old 5th Mar 2021 at 6:30 PM
May the program rest in peace. Thanks but no thanks. We don't want deadly computer viruses on our computers. It's not legit. It's not made by MAXIS or Origin. Installing that program WILL put your computer at risk of a deadly computer virus.
Test Subject
Original Poster
#136 Old 5th Mar 2021 at 6:58 PM
Quote:
Originally Posted by Jazzkitty
May the program rest in peace. Thanks but no thanks. We don't want deadly computer viruses on our computers. It's not legit. It's not made by MAXIS or Origin. Installing that program WILL put your computer at risk of a deadly computer virus.


Please see this VirusTotal link if you're in doubt before stating false facts: https://www.virustotal.com/gui/file...91397/detection

S4MP is played (and hopefully enjoyed) by over 200k players worldwide, feel free to join our Discord and ask others if you think the mod contains virus.
Test Subject
#137 Old 5th Mar 2021 at 9:58 PM
Quote:
Originally Posted by Jazzkitty
May the program rest in peace. Thanks but no thanks. We don't want deadly computer viruses on our computers. It's not legit. It's not made by MAXIS or Origin. Installing that program WILL put your computer at risk of a deadly computer virus.


Quit your trolling.

1. You technically don't even install anything, you simply download the launcher and run it.
2. All SmartScreen did was warn you that it didn't recognize the program. This is typical for a program actively being developed. I've had S4MP on multiple computers for months at this point and I can guarantee that it is safe and legit.
Lab Assistant
THANKS POST
#138 Old 6th Mar 2021 at 2:50 PM
Thank you so much for making this mod! I cannot wait to see its future! Please never give up on this amazing mod <3
Test Subject
#139 Old 7th Mar 2021 at 12:50 AM
not sure if this question been asked before, but are you able to use other mods with both users have the same mods on their pcs?
Test Subject
Original Poster
#140 Old 7th Mar 2021 at 9:59 AM
Quote:
Originally Posted by VRHoPeRs
not sure if this question been asked before, but are you able to use other mods with both users have the same mods on their pcs?


There might be issues with some mods, but most of them should work fine if both of you have them!
Test Subject
#141 Old 20th Mar 2021 at 1:31 PM
s4mp download links are not working
Test Subject
Original Poster
#142 Old 21st Mar 2021 at 10:49 AM
Quote:
Originally Posted by robzin
s4mp download links are not working


I've just re-checked and they were working for me, maybe it was just a temporary outage or something with your internet connection?
Test Subject
THANKS POST
#143 Old 23rd Mar 2021 at 8:43 PM
Hi! I have a problem. The client can't interact and move around, only the host. Did i missed something? Or is it a common problem? Thanks!
Test Subject
Original Poster
#144 Old 24th Mar 2021 at 4:09 PM
Quote:
Originally Posted by Stickey
Hi! I have a problem. The client can't interact and move around, only the host. Did i missed something? Or is it a common problem? Thanks!


Sounds like you are using an outdated version of the game, please check the requirements!
Test Subject
THANKS POST
#145 Old 25th Mar 2021 at 6:45 AM
I would love to download this mod, but my internet connection is always lagging. Thanks for taking your time and effort in creating this awesome mod.
Test Subject
THANKS POST
#146 Old 27th Mar 2021 at 2:14 AM
Hello, this is just a question that has nothing to do with errors, I just want to know if the developers of the mod believe that at some point the mod allows living in different lots and being in different domestic units, so the game allows this someday it will be possible, sorry if I had mistakes with grammar since English is not my native language
Test Subject
#147 Old 30th Mar 2021 at 6:12 AM
Quote:
Originally Posted by Jazzkitty
May the program rest in peace. Thanks but no thanks. We don't want deadly computer viruses on our computers. It's not legit. It's not made by MAXIS or Origin. Installing that program WILL put your computer at risk of a deadly computer virus.


It does that but its not always true. Also, that is the point of mods. So that its the stuff that real sims 4 will never do.
Pls stop.
I have done a lot of stuff and antivirus is not always right, its just a warning so that you don't come running to them when they told you it might happen anyway.
Test Subject
#148 Old 30th Mar 2021 at 6:16 AM
Quote:
Originally Posted by sims4multiplayer
I've just re-checked and they were working for me, maybe it was just a temporary outage or something with your internet connection?


If its not internet, which is likely to not be the case, maybe try clicking it again bc sometimes it does not register your clicks?
If that does not work refresh or try again later.
If it already worked for you other people, pls take my suggestions and thats the point of this reply. Thanks.
Test Subject
#149 Old 30th Mar 2021 at 6:17 AM
Quote:
Originally Posted by tyjokr
Quit your trolling.

1. You technically don't even install anything, you simply download the launcher and run it.
2. All SmartScreen did was warn you that it didn't recognize the program. This is typical for a program actively being developed. I've had S4MP on multiple computers for months at this point and I can guarantee that it is safe and legit.


They don't know, so its not trolling.
Just sayin'.
Test Subject
#150 Old 11th Apr 2021 at 1:32 AM
after a while of playing the time gets out of sync
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