In testing - not released yet
Play The Sims 4 with your friends.
Same house, same time.
S4OM is an online multiplayer mod for The Sims 4. Everyone controls their own Sim in one shared game - you see each other's moves as they happen. Free over LAN. Online play with a room code from $10 a month.
How it works
-
Install the mod
Drop one file in your Mods folder and turn on Script Mods in the game options. Every player does this.
-
Host makes a room
The host loads the save and gets a room code. S4OM sends the save to everyone who joins.
-
Friends join with the code
No port forwarding, no IP addresses. Type the code and you're in the same household.
| Game clock and speed | Sim positions | Chat |
| Household money | Moods and needs | Relationships |
| Inventory | Skills and stats | Buy mode purchases |
Pricing
LAN
Free
- Same home network
- Or connect by IP with port forwarding
- Every sync feature
Solo
$10/month
- Online play for 1 player
- Join with a room code
- No port forwarding
Duo
$15/month
- Online play for you + 1 friend
- Join with a room code
- No port forwarding
Household
$25/month
- Online play for up to 4 players
- Join with a room code
- No port forwarding
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Every player needs their own copy of The Sims 4. The base game is free on the EA app and Steam.
FAQ
Is this made by EA?
No. S4OM is a fan-made mod. It is not affiliated with or endorsed by Electronic Arts or Maxis.
Do we all need the same expansion packs?
It works best when everyone has the same packs. S4OM checks before the game starts and tells you what doesn't match.
Can I use other mods and CC?
Yes, as long as every player has the same ones. Script mods that change the same systems S4OM syncs can conflict.
Will a game patch break it?
Big Sims patches can. We fix it fast and post the current status here and on Discord.
Mac?
Windows first. Mac comes after launch.
Is the code open source?
Yes. The mod is GPL-3.0, built on SimSync by sora and k. The source will be public at launch.