Sorapop/Getty Images Part of the beauty of Steam libraries is that they aren't tied to a single device, and many Steam users enjoy their collections with PCs and Steam Decks alike. But what about when you want to game away from your computer and don't have a Steam Deck (or if your Steam Deck is just out of battery) ? That's when playing Steam games on your phone comes in, and there's a free app that lets you do just that: Moonlight Game Streaming . Moonlight is an open-source app that lets you play your PC games on your phone, as well as a host of other supported client devices. Since your experience with the app will largely depend on the limitations of your internet connection, you'll want to ensure your network is strong enough to handle remote play. We recommend wiring your internet connection with a good Cat6 Ethernet cable  to get the best data transfer speeds — and therefore the lowest latency — as you possibly can.…