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Sims 4 Multiplayer Mod

by sims4multiplayer Posted 29th Jun 2019 at 6:31 PM - Updated 26th Jul 2021 at 6:53 PM by sims4multiplayer
167 Comments / replies (Who?) - 15 Feedback Posts, 8 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 0.11.1
- Fixed the inventory item dragging issues
- Fixed the dialogs appearing on the wrong client
- Added a save resync button to the launcher
- Added expansion pack auto-detection to the launcher
  • 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-0.11.1-public-mac.zip

Size: 79.72 MB · Downloads: 10,360 · 26th Jul 2021
79.72 MB 10,360 26th Jul 2021
S4MP Online Launcher 0.11.1-public-win.zip

Size: 47.84 MB · Downloads: 27,176 · 26th Jul 2021
47.84 MB 27,176 26th Jul 2021
S4MP Online Launcher-0.8.1-public-mac.zip

Size: 80.34 MB · Downloads: 11,284 · 22nd Feb 2021
80.34 MB 11,284 22nd Feb 2021
S4MP Online Launcher 0.8.1-public-win.zip

Size: 47.34 MB · Downloads: 35,557 · 22nd Feb 2021
47.34 MB 35,557 22nd Feb 2021
S4MP Online Launcher-0.7.1-public-mac.zip

Size: 80.20 MB · Downloads: 11,115 · 15th Dec 2020
80.20 MB 11,115 15th Dec 2020
S4MP Online Launcher 0.7.1-public-win.zip

Size: 47.27 MB · Downloads: 25,413 · 15th Dec 2020
47.27 MB 25,413 15th Dec 2020
S4MP Online Launcher-0.6.1-public-mac.zip

Size: 69.29 MB · Downloads: 4,620 · 10th Nov 2020
69.29 MB 4,620 10th Nov 2020
S4MP Online Launcher 0.6.1-public-win.zip

Size: 43.90 MB · Downloads: 11,828 · 10th Nov 2020
43.90 MB 11,828 10th Nov 2020
S4MP Online Launcher-0.6.0-public-mac.zip

Size: 69.27 MB · Downloads: 3,316 · 13th Oct 2020
69.27 MB 3,316 13th Oct 2020
S4MP Online Launcher 0.6.0-public-win.zip

Size: 43.89 MB · Downloads: 8,090 · 13th Oct 2020
43.89 MB 8,090 13th Oct 2020
S4MP Online Launcher-0.5.4-public-mac.zip

Size: 69.29 MB · Downloads: 3,240 · 2nd Sep 2020
69.29 MB 3,240 2nd Sep 2020
S4MP Online Launcher 0.5.4-public-win.zip

Size: 43.88 MB · Downloads: 9,986 · 2nd Sep 2020
43.88 MB 9,986 2nd Sep 2020
S4MP_0.3.2-Win.zip

Size: 22.66 MB · Downloads: 82,833 · 1st Mar 2020
22.66 MB 82,833 1st Mar 2020
S4MP_0.3.2-MacOSX.zip

Size: 23.21 MB · Downloads: 12,700 · 1st Mar 2020
23.21 MB 12,700 1st Mar 2020
S4MP_0.2.1.zip

Size: 25.73 MB · Downloads: 40,204 · 9th Aug 2019
25.73 MB 40,204 9th Aug 2019
S4MP_0.2.0.zip

Size: 25.75 MB · Downloads: 26,845 · 2nd Jul 2019
25.75 MB 26,845 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
 
167 Comments / Replies (Who?) - 109 Feedback Posts, 47 Thanks Posts
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Test Subject
DELETED POST
17th Aug 2019 at 11:17 PM
This message has been deleted by kaznaka. Reason: resolved
Test Subject
THANKS POST
#76 Old 24th Aug 2019 at 2:28 AM Last edited by Maria1993 : 24th Aug 2019 at 6:30 AM.
when starting fatal error 11004
Test Subject
#77 Old 8th Sep 2019 at 6:16 PM
The one who connects to the host, can not interact with anything.

Help me, pls :c
Test Subject
THANKS POST
#78 Old 13th Sep 2019 at 11:26 PM
Haven't tried it yet but I'm very excited to do so. Thank you so much for making such a cool thing possible!
Test Subject
#79 Old 15th Sep 2019 at 9:09 PM
But this mod is not online, it is to play locally with a friend who is with you at that time with another PC. Please release the code of the mod and that professionals are in charge, thanks.
Test Subject
#80 Old 17th Sep 2019 at 6:18 PM
I'm excited to use this but can I use this mod to play with friends in other towns or farther?
Test Subject
Original Poster
#81 Old 17th Sep 2019 at 11:06 PM
Quote:
Originally Posted by furia_nocturna4
But this mod is not online, it is to play locally with a friend who is with you at that time with another PC. Please release the code of the mod and that professionals are in charge, thanks.


There is already an online version available of the mod
Lab Assistant
THANKS POST
#82 Old 29th Sep 2019 at 5:13 PM
Uh... What? Is this for real?
I'm personally not interested in playing online with people, but holy cowplant! This is so cool! I literally have no words.
Once again I'm totally floored by how talented the sims modding community is... Wow. This is something else. Amazing work!
Lab Assistant
THANKS POST
#83 Old 5th Oct 2019 at 6:36 PM
Hello!
I really want to try this. Sadly, my buddies do not have all the eps and packs that I do.
(I have them all except them Moschino Stuff Pack. ) If someone out that has the same and wants to give this a go, drop me a line
Test Subject
#84 Old 29th Oct 2019 at 8:14 PM
Default I didn't know what's going on
I am sorry but my girlfriend and I didn't receive a notification regarding the connection to the server and I would like to ask for more detailed instructions
Test Subject
THANKS POST
#85 Old 25th Nov 2019 at 2:42 PM
Actually I have no use for this but holy sh.. this is freaking awesome!
Test Subject
THANKS POST
#86 Old 25th Nov 2019 at 3:41 PM
This is INSANE!! Simmers out there have wanted a this feature for YEARS and with the failure of EA's attempt at this awhile back, it has been needing a comeback. Thank you for making this possible!! Now to go try it out!!

Will reply when I get it working!!
Test Subject
#87 Old 1st Dec 2019 at 11:24 PM
When are you going to upload the next version? 0.2.0 doesn't work anymore.
Test Subject
#88 Old 4th Dec 2019 at 1:45 AM
Quote:
Originally Posted by Ciablue
Hello!
I really want to try this. Sadly, my buddies do not have all the eps and packs that I do.
(I have them all except them Moschino Stuff Pack. ) If someone out that has the same and wants to give this a go, drop me a line

By now you may already found out, but you can disable your packs and eps that your friends don't have, here is the tutorial link "https://jamesturner.yt/disablepacks".
Test Subject
Original Poster
#89 Old 5th Dec 2019 at 10:51 PM
Quote:
Originally Posted by serenito
When are you going to upload the next version? 0.2.0 doesn't work anymore.


0.2.1 still works
Test Subject
#90 Old 3rd Jan 2020 at 8:26 PM
Hey there y'all! Running into an issue where the client trying to connect to the server doesn't ever connect. Typing in "mp.c fals <IP>" doesn't prompt anything different; no connection message, no nothing! Sorry if this has already been asked and resolved, but I am anxious for a response! Thank you!!!
Test Subject
DELETED POST
31st Mar 2020 at 5:05 AM
This message has been deleted by Lady Lavender Gaming.
Test Subject
THANKS POST
#91 Old 3rd Apr 2020 at 12:16 AM
Can we still play with mods
Test Subject
#92 Old 5th Apr 2020 at 9:29 AM
This mod works perfectly but only for 2 players.

First you've to create a network between the two players with Hamachi (https://www.vpn.net/) and then you can already install the mod as indicated in the file readme.pdf

Will there's an update for 3 or more players?
And thanks for the mod, you're the best.
Test Subject
#93 Old 10th Apr 2020 at 6:53 PM
Quote:
Originally Posted by Bob Dylan 101
Hey there y'all! Running into an issue where the client trying to connect to the server doesn't ever connect. Typing in "mp.c fals <IP>" doesn't prompt anything different; no connection message, no nothing! Sorry if this has already been asked and resolved, but I am anxious for a response! Thank you!!!

I have been having the same problem and we cant figure out why!
Test Subject
#94 Old 17th Apr 2020 at 6:56 PM
Quote:
Originally Posted by BestSomeone
This seems like a really cool mod, too bad I dont have anyone to play with me


I can always use a sims friend PM me n we can play sims 4 online together if you'd like
Test Subject
#95 Old 18th May 2020 at 9:18 PM
Hi developers, thank you for this mod. Please would you add a fourth step to the instructions to save people like me some frustration:
The following steps should be completed on both PCs:
1. Remove all mods from your mod folder (Electronic Arts\The Sims 4\mods)
2. Make sure you have the same save file on both PCs
3. Copy the S4MP_release.ts4script file to your mods folder
4. Enable (tick the box) "Script Mods Allowed" in Game Options > Other, and restart the game.



This option is not enabled by default. I had just freshly installed Sims 4 on two PCs, and didn't even know there was any such setting, not having installed a mod before.
Screenshots
Test Subject
THANKS POST
#96 Old 20th May 2020 at 9:03 PM
I really Love this MOD cause me and my girlfriend can play it together <3
Test Subject
#97 Old 23rd May 2020 at 12:52 PM
I have an issue: it says that we are both connected, but we actually aren't and we can't play. It used to work very well before this update, but in this new version we haven't been able to play even after TWO hours trying different methods, including Hamachi.

Please some help?
Test Subject
#98 Old 25th May 2020 at 11:42 AM
Hi, can we use the build & buy (and dlc) with the 0.5.0 (patreon) SIM4 multyplayer mod? TY
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