PC gamers have a long tradition of forcing hardware to do things it was never designed to do. Now, they are turning Valve’s brand-new 2026 Steam Controller into a musical instrument.
A newly released open-source program called “Steam Haptics Singer” manipulates the controller’s internal trackpad haptic motors, forcing them to vibrate at highly specific frequencies. By dragging standard MIDI files into the app, users are making the physical rumble components act like miniature speakers.
The software was released by GitHub user CrazyCritic89, according to XDA Developers, which validates the release of Steam Haptics Singer and its ability to play MIDI songs on the Steam Controller via haptic motors. The application also supports the Steam Deck and the original 2015 Steam Controller.
Players are successfully programming the hardware to play complex tunes like the Super Mario Bros. 2 theme, the Halo theme, the music from Doom, and Portal‘s famous track “Still Alive.” A recent update fully optimized the software for the 2026 controller, letting it use the back rumble haptics to maintain high-fidelity playback without crashing the device.
Fans are thoroughly testing the new hardware’s audio capabilities. Just days ago, players uncovered a hidden easter egg where the 2026 Steam Controller triggers a “Wilhelm scream” if the device is dropped.
From Floppy Drives to an Official Valve SDK
Making PC hardware sing is a decades-old internet tradition, tracing back to the early days of floppy disk drive covers. Steam Haptics Singer is actually a direct fork of “SteamControllerSinger,” an older app built for the discontinued 2015 controller.
The popularity of this new update is catching the attention of the original hardware designers. Valve developer Pierre-Loup Griffais recently noted that the development team might consider creating an official sound-customization SDK or tool in the future if community demand stays high.
This means gamers could soon program custom haptic audio profiles directly through Steam without needing to install third-party open-source software.