Rare Steam Controller Prototype Discovered at Goodwill Thrift Store
A rare early Steam Controller prototype has unexpectedly surfaced at a Goodwill thrift store in the United States, surprising both collectors and longtime Valve fans. The unusual controller was discovered by the father of a Reddit user, who later shared photos of the device online. The find quickly attracted attention because the prototype dates back to 2013–2014, well before the original Steam Controller officially launched in 2015.

The prototype is believed to be the "Chell" version, an internal design named after the protagonist of Valve's Portal series. Unlike the retail controller, it features a noticeably different layout, including two analog sticks positioned above circular touchpads, offering a fascinating look at how Valve experimented with multiple control schemes during development. Many of the design ideas seen in this prototype were later refined or abandoned before the final product reached consumers.
Photos of the controller quickly spread across gaming communities, with enthusiasts highlighting its historical significance. Hardware prototypes from Valve rarely appear in public, making discoveries like this exceptionally uncommon. Collectors noted that the prototype still appears to function, further increasing its value as a piece of gaming history. The discovery also provides another glimpse into Valve's lengthy hardware development process, which involved years of experimentation before the original Steam Controller entered production.
The timing of the discovery has generated even more interest because Valve recently launched the second-generation Steam Controller, renewing enthusiasm for the company's hardware lineup. Although the prototype itself has no commercial value for everyday players, it serves as a rare reminder of the iterative design process behind one of Valve's most unconventional gaming peripherals and offers collectors a unique piece of PC gaming history.