


PROTON_USE_WINED3D=1 %command%
just use the launch parameters I indicate, it may take a while for the game to start for the first time some interfaces, but it is fully playable.

The game starts but alerts me I need an internet connection, even though I'm already connected.
I tried at least 3 common proton versions.

This game is not playable
This game is not played as it for some reason cannot detect my internet connection.

Noticed the menus would brefly flash. thought I would attempt to use the arrow keys for force a response.
used protonHotfix. Verified files in steam.
on the main menu, I could not click any option. However, If I clcked in the item window. I could use the arrow buttons to select my language, Location and airport.
Game opens and displays menu, then freezes


Frozen Main Menu
Tried multiple different Proton versions such as GE-Proton and Proton Experimental
I could only see the Main Menu or PreMainMenu but not click or do anything.
screen is freeze
Game freezes after startup, GNOME shows app not responding dialog
The game crashes after startup.
After startup, it pops up a box saying "Internet connection is required to play Airline Manager 4.". After clicking OK, it pops up: "Unhandled exception has occured [...]".
After confirming the warning, it crashes.