Valve Steam Trackball Controller

By Xah Lee. Date: . Last updated: .

This is the trackball controller prototype by Valve, dated .

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Valve trackball controller prototype . [image source http://www.wired.com/2013/11/valve-steam-controller/ ]

It was hyped back in 2013, as gamer wanted a input device that can have variable random speed, such as mouse or trackball.

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valve controller prototypes. [image source http://www.stuff.tv/features/haptics-trackballs-and-cheeto-dust-how-valve-built-game-controller-future/game-controls-go-open-source ]

Valve ended up with a trackpad instead. See:

Steam controller gamepad 91670-s258x243
Valve Steam Controller

They said trackpad allowed much more possibilities in configuration, for all sort of games that require novel inputs.

But i think that's a bad choice. Because:

One practical problem with trackball is food crumbs or cat hairs. People will be eating potato chips on the couch, and lots trackballs will become nasty.

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