DroidDeck brings the SteamOS experience to Android: Steam Gaming Mode, full Linux desktop, integration with GOG, Epic Games, Xbox, and other storefronts, Steam VR, and more!
DroidDeck has no website. Only download it from this repository's Releases.
Install
- Android 9 or newer on Adreno 730 or newer, or any 8xx. Adreno 6xx, Mali, Xclipse and PowerVR are experimental. Adreno 710 is currently unsupported. No root needed.
- About 3 GB free for the runtime, plus 1.1 GB for the desktop and emulators.
- Install the APK, install the Linux runtime, press Play and sign in to Steam.
- On Android 14 and newer, turn on Disable child process restrictions in Developer options. On Android 12 and 13, Steam's first launch shows a Fix it for me button that walks you through it.
Smart glasses setup is in the support matrix. Release notes are in docs/releases.
Help, Preview builds and device reports are on Discord. For bugs, post in #bug-reports with the zip from Share logs.
Build
Needs Docker, Java 17, the Android SDK and NDK, Rust via rustup, GitHub CLI, Python 3 and zstd.
tools/build_local.sh
The APK lands in app/build/outputs/apk/release/. Install it with tools/deploy_local.sh. After the first run, ./gradlew :app:assembleRelease reuses the prepared inputs. Unit tests run with ./gradlew -PskipRust=true :app:testDebugUnitTest, and the helper and preload suite with bash tools/test_local.sh.
On Windows, see tools/run_windows.ps1 and tools/prepare_windows_runtime.py.
Limits
Compatibility and performance vary by device. Desktop compositing is software rendered, and Firefox sandboxing is reduced under proot.
Credits and licence
DroidDeck is GPL-3.0. Steam and Proton belong to Valve Corporation. VITURE, RayNeo, XREAL, Rokid, REDMAGIC, Nintendo Switch and Joy-Con are trademarks of their owners. This project is not affiliated with any of them.
- Runtime, shim, input and controller work build on WinNative and Bannerlator by maxjivi05.
- mmap ring buffer controller input by ribbit384 (WinNative #345).
- FEX (MIT) runs x86 code. DroidDeck's build puts the platform name under
AT_PLATFORM so sharun AppImages by VHSgunzo (MIT) start through its userland-execve loader (MIT). FEX's code disk cache was checked in its source.
- x86 AppImages, and arm64 ones whose runtime can't unpack on Android, are unpacked with uruntime by VHSgunzo (MIT), shipped unmodified with its licence.
- x86 programs linking OpenSSL 3 use the copy in the Steam Linux Runtime 4.0. x86 Linux games get the
/etc/asound.conf that pressure-vessel writes.
WriteProcessMemory hooks fall back to /proc/<pid>/mem the way Wine's server/ptrace.c did before Wine 11.- Wine write watches use userfaultfd support in Proton's
dlls/ntdll/unix/virtual.c (LGPL-2.1-or-later). libblsession supplies the arm64 syscall number and answers PAGEMAP_SCAN from /proc/self/pagemap.
- libblsession runs Wine's arm64
SIGUSR2 context handler (dlls/ntdll/unix/signal_arm64.c, LGPL-2.1-or-later) in place on a frame laid out like Linux's arch/arm64/kernel/signal.c, and serves fill_vm_counters in dlls/ntdll/unix/process.c the kernel's own /proc/<pid>/status.
- droiddeck-ntsync follows the Linux ntsync semantics in
Documentation/userspace-api/ntsync.rst (GPL-2.0).
- The proot fast path orders bindings like PRoot's
path/binding.c (GPL-2.0-or-later).
- DiRT 3 and DiRT Showdown keep their telemetry socket the way RoccoC's DiRTTelemetryErrorFix (MIT) does, based on the fix by Carsten Gottschling.
This is the beginning of the README. Read the rest at the original. Read the full README ↗
