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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?) - 11 Feedback Posts, 12 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: 10,373 · 26th Jul 2021
79.72 MB 10,373 26th Jul 2021
S4MP Online Launcher 0.11.1-public-win.zip

Size: 47.84 MB · Downloads: 27,200 · 26th Jul 2021
47.84 MB 27,200 26th Jul 2021
S4MP Online Launcher-0.8.1-public-mac.zip

Size: 80.34 MB · Downloads: 11,288 · 22nd Feb 2021
80.34 MB 11,288 22nd Feb 2021
S4MP Online Launcher 0.8.1-public-win.zip

Size: 47.34 MB · Downloads: 35,562 · 22nd Feb 2021
47.34 MB 35,562 22nd Feb 2021
S4MP Online Launcher-0.7.1-public-mac.zip

Size: 80.20 MB · Downloads: 11,119 · 15th Dec 2020
80.20 MB 11,119 15th Dec 2020
S4MP Online Launcher 0.7.1-public-win.zip

Size: 47.27 MB · Downloads: 25,417 · 15th Dec 2020
47.27 MB 25,417 15th Dec 2020
S4MP Online Launcher-0.6.1-public-mac.zip

Size: 69.29 MB · Downloads: 4,624 · 10th Nov 2020
69.29 MB 4,624 10th Nov 2020
S4MP Online Launcher 0.6.1-public-win.zip

Size: 43.90 MB · Downloads: 11,833 · 10th Nov 2020
43.90 MB 11,833 10th Nov 2020
S4MP Online Launcher-0.6.0-public-mac.zip

Size: 69.27 MB · Downloads: 3,320 · 13th Oct 2020
69.27 MB 3,320 13th Oct 2020
S4MP Online Launcher 0.6.0-public-win.zip

Size: 43.89 MB · Downloads: 8,092 · 13th Oct 2020
43.89 MB 8,092 13th Oct 2020
S4MP Online Launcher-0.5.4-public-mac.zip

Size: 69.29 MB · Downloads: 3,242 · 2nd Sep 2020
69.29 MB 3,242 2nd Sep 2020
S4MP Online Launcher 0.5.4-public-win.zip

Size: 43.88 MB · Downloads: 9,988 · 2nd Sep 2020
43.88 MB 9,988 2nd Sep 2020
S4MP_0.3.2-Win.zip

Size: 22.66 MB · Downloads: 82,836 · 1st Mar 2020
22.66 MB 82,836 1st Mar 2020
S4MP_0.3.2-MacOSX.zip

Size: 23.21 MB · Downloads: 12,702 · 1st Mar 2020
23.21 MB 12,702 1st Mar 2020
S4MP_0.2.1.zip

Size: 25.73 MB · Downloads: 40,206 · 9th Aug 2019
25.73 MB 40,206 9th Aug 2019
S4MP_0.2.0.zip

Size: 25.75 MB · Downloads: 26,847 · 2nd Jul 2019
25.75 MB 26,847 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
Hide Thanks Posts for this thread (Show only feedback)
Page 1 of 7
Lab Assistant
THANKS POST
#2 Old 29th Jun 2019 at 6:51 PM
Remove all Mods? No thank you.
Lab Assistant
THANKS POST
#3 Old 29th Jun 2019 at 7:37 PM
This seems like a really cool mod, too bad I dont have anyone to play with me
Test Subject
THANKS POST
#4 Old 29th Jun 2019 at 8:04 PM
they say - no and the creators say - yes!!!)))
Test Subject
Original Poster
#5 Old 29th Jun 2019 at 9:01 PM
Quote:
Originally Posted by ange1face20
Remove all Mods? No thank you.

Feel free to experiment with other mods turned on, just make sure you have the same on both PCs
Test Subject
#6 Old 29th Jun 2019 at 10:26 PM
Wow, this is huge!!
Unfortunately I have no one to play with me.
Field Researcher
THANKS POST
#7 Old 29th Jun 2019 at 10:52 PM
I was just speculating if this could be done this week! Amazing work!
Test Subject
THANKS POST
#8 Old 30th Jun 2019 at 12:08 AM
Can you go into build mode while connected with another pc? Or crashes?
Field Researcher
THANKS POST
#9 Old 30th Jun 2019 at 4:00 AM
Holy crap, I had JUST looked up the status of this mod on a reddit that said it was still being worked on after the last EP broke it. Or something. This is amazing, I have friends that just got into Sims so we can have even more fun now. Thank you for all the hard work and good luck with future development!
Test Subject
THANKS POST
#10 Old 30th Jun 2019 at 6:50 AM
Why won't the mod?
Lab Assistant
THANKS POST
#11 Old 30th Jun 2019 at 9:46 AM
WOW!!!!! AWESOME!!! Thank you for your the hard work!!!
Test Subject
Original Poster
#12 Old 30th Jun 2019 at 11:25 AM
Quote:
Originally Posted by helmetguy
Can you go into build mode while connected with another pc? Or crashes?


Build/buy mode support is still experimental thus it may contain bugs.
Test Subject
THANKS POST
#13 Old 30th Jun 2019 at 2:46 PM
Uauuu! It's amazing! Thanks a lot.
Lab Assistant
#14 Old 30th Jun 2019 at 5:17 PM
Super cool! Can sims leave the house? And how do you choose which sim to control?
Test Subject
THANKS POST
#15 Old 30th Jun 2019 at 10:26 PM
This is the BEST thing to come back to when you go on vacation
Field Researcher
#16 Old 30th Jun 2019 at 11:20 PM
Can this work for 3 or more PCS or just 2?
Test Subject
Original Poster
#17 Old 30th Jun 2019 at 11:54 PM
Quote:
Originally Posted by Jill
Can this work for 3 or more PCS or just 2?


Right now it's limited to 2 but more is coming soon
Test Subject
Original Poster
#18 Old 30th Jun 2019 at 11:55 PM
Quote:
Originally Posted by LOolyharb1
Super cool! Can sims leave the house? And how do you choose which sim to control?


You can freely select the sims right now. Traveling is not supported in this version but it's a priority to make that work.
Test Subject
DELETED POST
1st Jul 2019 at 12:03 AM
This message has been deleted by heaven. Reason: no piracy
Lab Assistant
#19 Old 1st Jul 2019 at 2:26 AM
Hmm... I have nobody to play with, so I won't be using this mod, but I can't help but wonder if there's any specific reason GF and SV are required.
Test Subject
#20 Old 1st Jul 2019 at 4:01 AM Last edited by zerzavy : 1st Jul 2019 at 4:17 AM.
Got it working!
Test Subject
THANKS POST
#21 Old 1st Jul 2019 at 5:53 AM
This is amazing!! Now I can totally play with... oh wait... nvm
Test Subject
DELETED POST
Original Poster
1st Jul 2019 at 8:31 AM
This message has been deleted by heaven. Reason: response to deleted post
Test Subject
Original Poster
#22 Old 1st Jul 2019 at 8:32 AM
Quote:
Originally Posted by Lazurite
Hmm... I have nobody to play with, so I won't be using this mod, but I can't help but wonder if there's any specific reason GF and SV are required.


Basically, you only need their patches since there were some major upgrades regarding the codebase of the game
Test Subject
THANKS POST
#23 Old 1st Jul 2019 at 7:31 PM
Thank you, I just have one question: Will It work with hamachi for lan?
Test Subject
Original Poster
#24 Old 1st Jul 2019 at 8:06 PM
Quote:
Originally Posted by PeachLyrics
Thank you, I just have one question: Will It work with hamachi for lan?


Yes it does! However, online mode is coming in the next weeks, so stay tuned!
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