OFFICIAL DOWNLOAD
Download the MSCO launcher
One launcher for both the free demo and the Closed Beta. It keeps MSCO updated by itself, so you install it once.
LATEST CLOSED BETA: 4.5.1 (30 Sep 2026)
1111786
downloads
and counting
and counting
OFFICIALThis is the only official page to download My Summer Car Online. Copies from other websites can contain viruses or malware. Antivirus flagging the launcher? Read the false positive report.
FIRST TIME SETUP, WATCH THIS FIRST
P401Up and running in 3 steps
Install the launcher
Download it above and run the installer. You need My Summer Car in your Steam library.
Log in
Use your MSCO account. No account yet? Make one here, it takes a minute.
Pick a version and play
Play the free demo, or the Closed Beta if you own an edition. Your friends need the same version to join you.
MAINOS
P402Demo or Closed Beta?
Free demo3.1.0
- ✕No Satsuma support
- ✕Old syncing that causes bugs and FPS drops
- ✕You have to send your save to friends by hand
- ✕Old, buggy network system
- ✕No new animations or UI
- ✕Lobbies limited to 2 players
- ✕Over 200 updates behind the Closed Beta
The demo is in the launcher because people asked for a free version. 3.1.0 was the last open beta, so that's what it is.
Closed Beta4.5.1
- ✓Satsuma support
- ✓New sync system, no bugs or FPS drops from syncing
- ✓Host's save is sent to players automatically
- ✓New, optimized networking
- ✓Improved animations and UI
- ✓Lobbies up to 12 players
- ✓Over 250 updates ahead of the demo
Get the Closed Beta
$9.99from $7.99
The Closed Beta is where MSCO really is. It has had big changes and improvements that make the mod a lot more playable.
P403Stuck?
Found a bug
Report it in the #bugs channel. Updates land on Discord first, with daily progress news too.
Report a bugP404Where MSCO is at
MAINOS