/usr/share/applications/acm.desktop is in acm 5.0-28ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 | [Desktop Entry]
Version=1.0
Name=ACM Aerial Combat Simulator
GenericName=Flight Simulator
Comment=Fly military aircraft in a combat situation
Type=Application
Exec=acm -nosplash
Icon=acm
Categories=ActionGame;Game;Simulation;
|