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CheckoutSteam Game Adder is a game-changer for Steam users. With its intuitive interface, personalized recommendations, and customizable library organization, it's a must-have tool for any gamer. Say goodbye to tedious game searching and hello to a streamlined gaming experience. Try Steam Game Adder today and discover a new world of gaming possibilities!
You're referring to the Steam game "Adder"!
An open-source tool that allows you to right-click any .exe or desktop shortcut to instantly add it to your library.