/usr/share/applications/gravitywars.desktop is in gravitywars 1.102-33.
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=Gravity Wars
GenericName=gravitywars
Comment=Test your skills against gravity
Type=Application
Exec=gravitywars
Icon=gravitywars
Terminal=false
Categories=Game;ArcadeGame;
|