/usr/share/applications/einstein.desktop is in einstein 2.0.dfsg.2-9+b2.
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 10 11 12 | [Desktop Entry]
Version=1.0
Encoding=UTF-8
Name=Einstein
Comment="Puzzle game inspired on Einstein's puzzle"
Comment[de]="Puzzle-Spiel, inspiriert von Einsteins Puzzle"
Exec=einstein
Icon=einstein.png
Terminal=false
Type=Application
Categories=Game;LogicGame;
StartupNotify=false
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