Handheld Companion

What Handheld Companion is

Handheld Companion is a free, open-source Windows app for handheld gaming PCs, with touch-optimized controls and device settings. It can remap controller inputs to keyboard, mouse, joystick, trigger, or virtual controller actions, including Xbox 360 and DualShock 4 output for games. Universal Motion Control turns supported sensor data into input for aiming, camera control, racing, and emulators. QuickTools adjusts TDP, frame limits, refresh rate, resolution, brightness, volume, and power mode. The app can recognize the active game and apply saved controller, motion, graphics, and power preferences. The listed device families include ROG Ally, Steam Deck, Legion Go, MSI Claw, AYANEO, and GPD Win. Steam Deck use requires Windows 10 or 11; Handheld Companion is not a SteamOS app. The free public release is for Windows 10/11 on x86 and x64. Installation as administrator is required to deploy controller services and drivers. The project is created by Valkirie and contributors.

Who it suits

It suits handheld gaming PC owners who want configurable controller, motion, and performance settings. Steam Deck owners need to be running Windows 10 or 11.

Limits

The Free public release costs nothing and supports Windows 10/11 on x86 and x64. Steam Deck support is limited to devices running Windows, not SteamOS, and device behavior can vary with Windows builds, firmware, and other controller software.

Getting started

1. Download Handheld Companion for Windows 10 or Windows 11
2. Run the installer as administrator
3. Allow it to deploy required services and drivers
4. Connect and configure your handheld controls
5. Create preferences for games and device settings

Verdict

Handheld Companion combines input mapping, motion controls, game profiles, and device adjustments in a free Windows app. Check Windows and device compatibility before installing, especially on Steam Deck.