Teardown Multiplayer (TDMP) is a mod that allows you and your friends to play Teardown together. You can download any sandbox or modified maps and have fun destroying objects, killing each other, or just playing role-playing games. The campaign is currently not supported. It is also suitable for those who have a pirated version of the game, or something does not work on the license.

Installing the mod:

Extract the TDMP-Launcher-Updater-0.1.0 folder to any location (for example, to the desktop).
Go to the extracted folder TDMP-Launcher-Updater-0.1.0.
Create a shortcut for LauncherUpdater.exe and move it to the desktop.
Launch the updater via the created shortcut.
The updater checks for updates for the launcher, downloads and installs the latest version and launches it.
Now use this shortcut as the main way to launch TDMP.