Overview
- DroidDeck is a free, open-source app published on GitHub that installs a Linux runtime and boots Valve’s ARM64 Steam client on compatible Android devices so users can download and run PC games locally.
- The project uses Valve’s ARM64 Proton compatibility layer to run Windows games and FEX to translate x86 instructions to Arm, which lets many existing PC titles launch on Arm-based phones.
- Early independent tests showed strong results on flagship Snapdragon hardware, with ETA PRIME reporting Cyberpunk 2077 hitting about 60 FPS at 720p on a RedMagic 11 Pro, though performance varies by title and device.
- Practical limits include device and GPU support (the project officially targets Adreno 730 and newer), a roughly 3GB Linux runtime plus space for games, a required developer setting change to disable Android child-process restrictions, and real-world thermal throttling on phones.
- DroidDeck remains in active development, is not affiliated with Valve, and could widen local mobile access to PC libraries while leaving compatibility, driver support, and user tinkering as key obstacles to broad adoption.