Here is the contents of a desktop file created by steam:
So, if you know the game's id, you just need to call/start steam like this:Code:[Desktop Entry] Name=World of Goo GenericName=Steam game Comment=Play this game Exec=steam steam://rungameid/22000 Icon=steam_icon_22000 Terminal=false Type=Application Categories=Game;
Hope that helps.Code:steam steam://rungameid/<game's_id>
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