The OpenPuck project allows the Steam Controller to emulate console controls, among other uses

A work in progress, but a very intriguing one.
XDA Developers on MSN

This open-source puck lets you use your Steam Controller on Xbox, Switch, and PlayStation consoles

It's cheap to build, too.

Enthusiast project turns the Steam Controller into a cross-platform gamepad

Valve's new Steam Controller doesn't natively support XInput, even though XInput remains the standard for many PC games and ...
Hackaday

DIY Steam Controller Puck Offers Xbox, Switch, PlayStation Emulation Modes

Valve recently released a new version of the Steam Controller, which features a wired USB puck that serves both as charger ...
Geeky Gadgets

Valve Steam Controller 2026 : Hype, Hopes & Fears from Trackpads to Grip Gyro

What if the future of gaming wasn’t just about better graphics or faster hardware, but about how you connect with your games? In this breakdown, RambleCan walks through how Valve’s Steam Controller ...