There is no .deb or .sh on Linux. How to launch ?
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chmod +x Geographical Adventures.x86_64
Then just double click it or launch it from terminal
You can create a .desktop for the app too
#!/usr/bin/env xdg-open [Desktop Entry] Version=1.0 Type=Application Terminal=false Exec="/opt/GeographicalAdventures/Geographical Adventures.x86_64" Name=Geographical Adventures