/usr/share/applications/attalserver.desktop is in attal 1.0~rc2-2.
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]
Name=Attal server
Exec=attal-server
Icon=
StartupNotify=true
Terminal=false
Type=Application
Categories=Game;StrategyGame;
NoDisplay=true
|