S4MP is a mod for The Sims 4 that allows you to play the game with up to 12 friends in real-time multiplayer!
With the Sims 4 Multiplayer mod, you can play The Sims 4 in 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!
Installation Guide
The host must prepare a Sims 4 household with everyone’s sims to play with, meanwhile, everyone must enable Mods & Scripts, then save & exit your games.
Download and extract S4MP from the zip file, then launch it. If it’s not opening, make sure to run it as admin and exclude it from your antivirus.
Set the documents path in S4MP’a settings tab, by default:
- Windows – C:\Users\USER\Documents\Electronic Arts\The Sims 4
- Mac – /Users/USER/Documents/Electronic Arts/The Sims 4
Set the game’s folder path in S4MP’s settings tab, by default:
- Origin – C:\Program Files (x86)\Origin Games\The Sims 4
- EA App – C:\Program Files\EA Games\The Sims 4
- Steam – C:\Program Files (x86)\Steam\steamapps\common\The Sims 4
- Mac – /Users/USER/Applications
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Sharing a Cramped Apartment with My Real-Life Best Friend
For more than twenty years, playing The Sims has been an exclusively solo journey where you sit alone at your desk crafting elaborate houses and micromanaging virtual lives in complete isolation. We have all dreamed about what it would feel like to load into a shared neighborhood lot with a real-life friend, splitting rent, sharing chores, and causing spontaneous chaos in real time. When my best friend and I finally booted up the S4MP multiplayer mod over a weekend Discord call, that longtime simmer fantasy turned into pure, unfiltered hilarity.
We decided to start humble: a dingy two-bedroom starter apartment in the Spice District of San Myshuno with barely five hundred Simoleons left in our joint bank account. From the very first in-game morning, the sheer novelty of watching another human player control a Sim in the same living room was surreal. While I was in the bedroom struggling to dress my Sim for work, my friend was already in the hallway aggressively greeting our noisy neighbors and trying to borrow sugar.
The Great Grilled Cheese Fire of Friday Night Co-op
Nothing tests a real-world friendship quite like sharing a cheap kitchen with level-one cooking skills. It was our first Friday night in the apartment, and both of our Sims were starving after long shifts. I hopped into the bathroom to take a quick shower, telling my friend over voice chat to prepare dinner. Within thirty seconds, sirens started blaring across the screen, smoke poured into the hallway, and the kitchen counter burst into roaring flames because my friend attempted to cook grilled cheese on a secondhand stove with zero culinary skill.
Watching my friend’s Sim run around the living room in complete panic waving their arms while I frantically tried to extinguish the blaze had both of us laughing so hard we were crying on Discord. We managed to put the fire out just before the insurance fine hit, leaving our entire kitchen charred black and smelling like burnt bread. You simply cannot get that kind of emergent multiplayer comedy in any other simulation game on the market.
Fighting Over the Only Working Computer in the House
Because we were completely broke, our shared apartment only had enough budget for a single cheap desk computer. What followed was an ongoing turf war over who got to use the PC. My Sim needed the computer to write freelance articles to pay our weekly utility bills, while my friend’s Sim was hopelessly addicted to Blique gaming tournaments and chatting with random townies online.
We found ourselves physically blocking doorway paths and racing across the hallway the moment one Sim stepped away for a glass of water. When my friend finally queued up an all-night gaming marathon, I took petty revenge by having my Sim turn the stereo volume to maximum right next to their bed. These goofy, spontaneous roommate rivalries made the save file feel infinitely more memorable than playing alone with predictable game AI.
Syncing In-Game Clocks and Handling Discord Laughter
Playing in real-time co-op definitely requires a tiny bit of communication, especially when it comes to game speed. In single-player, everyone mashes the triple-speed button whenever their Sims go to sleep or leave for work. In multiplayer, both players need to coordinate sleep schedules so you are not stuck waiting in real time while your roommate’s character takes a six-hour nap on the sofa.
We developed a funny household routine: whenever midnight rolled around, we would announce bedtime over voice chat, queue up our Sims into their respective beds, and let the fast-forward clock fly. Whenever one of us woke up early with a starving hunger bar, the race to raid the refrigerator started all over again. The setup was surprisingly smooth over our local network, with minimal hiccups once we synced our mod versions properly.
Decorating our cramped flat was another hilarious test of patience. While I preferred clean minimalist furniture and cozy warm lighting, my friend insisted on filling every corner with garish neon signs, inflatable lawn chairs, and tacky lawn gnomes. We compromised by splitting the living room right down the middle with tape, creating the most bizarre visual clash of interior design you have ever witnessed.
How We Finally Replaced Boredom with Pure Co-op Mayhem
S4MP fundamentally revitalizes how you experience the game world. What used to be mundane daily routines—like washing laundry, paying utility bills, or hosting a neighborhood dinner party—suddenly turns into cooperative storytelling where both players have genuine agency over what happens next.
It pairs amazingly well with relationship drama from our Passionate Romance Mod review and comprehensive system controls from MC Command Center Mod. If you have a friend who loves the franchise as much as you do, hopping into a shared save file together will give you some of the most memorable gaming sessions of your life.