Run Space Engineers with Plugin Loader on Linux - New Method
Adapted from @GangolfOvaert's comment.
- Download the latest Space Engineers Launcher into the
Bin64folder of the game - Set Space Engineers launch options in Steam to
bash -c 'exec "${@/%SpaceEngineers.exe/SpaceEngineersLauncher.exe}"' -- %command%(arguments can be added after%command%) - Launch Space Engineers from Steam
This method does not use SpaceEngineersLauncher.py, so downloading it is not required.
I used the .exe and launch parameters of steam. Works great tho and you can use Steam to run the game.