Play My Summer Car with your friends
MSCO is the multiplayer mod for My Summer Car on Steam. Drive, haul sewage and wreck cars together in lobbies of up to 12. The Closed Beta is open right now.
in the Closed Beta
Already have it? Download the launcher and log in.
P102Latest video
P103In the beta
- Auto-updating launcher201
- 1+ update every month202
- Much smoother online play203
- Lobbies up to 12 players204
- MSCO skins (Premium+)205
- Preview builds (Super+)206
Not everything is synced yet, racing parts for the Satsuma and rally are still in progress. Follow it on the progress page.
Everyone in the lobby needs the beta
MSCO doesn't mix versions, so your friends need the Closed Beta too. Buy one for a friend and get the lobby going tonight.
P300Questions
Do I need the Steam version of My Summer Car?
Yes. MSCO only opens if My Summer Car is in your Steam library.
Does everyone need the Closed Beta to play together?
Yes. MSCO doesn't allow play across different versions, so if you're on the Closed Beta your friends need it too.
Will MSCO be free when it leaves beta?
There will be a free version. Everyone who pre-ordered keeps extra perks, and the edition prices will go up.
How many people can play at once?
MSCO can technically handle any number of players, but we cap lobbies at 12 for now to keep things stable.
Does it actually work?
Yes, it works right now. Watch Nika's videos to see what runs best.
MSCO doesn't start, help?
Watch this video for the first-time setup.
I die or freeze when my friend joins
Follow the #guide channel on our Discord.
P400About MSCO
MSCO is a mod for My Summer Car. Development started in October 2019 as an idea from Nika and Diehy. The Closed Beta lets you play with friends today with limited features, and the goal is a full multiplayer game you can progress through together. The biggest jobs left are Satsuma building and save progression.
We are not affiliated with My Summer Car or Amistech Games. MSCO is a fully external mod and doesn't modify any original game files.
Playing My Winter Car?
Check out MWCO ▶