DroidDeck is a new mobile gaming application for Android devices that allows users to access and play their Steam library, mimicking the Steam OS interface. It offers a comprehensive Steam client experience in Big Picture mode and supports various Steam OS functionalities, including desktop mode and the installation of Decky plugins and Linux applications. The installation process is user-friendly but requires users to enable the “disable child-process limit” feature in developer options, which is unavailable on Android 12 or 13. Users need a device with a Snapdragon processor and an Adreno 700 series GPU or higher, excluding many budget and mid-range options. Preliminary tests on the Retroid Pocket G2 showed a familiar interface but noted performance issues and high storage usage, with the app consuming approximately 12GB after installing one sub-1GB game. Gameplay experiences varied, with some titles running at playable speeds while others had inconsistent frame rates. Users may want to keep alternative apps like GameNative installed for better performance and compatibility.