Found a Chell prototype, and been having fun testing games with it : r/SteamController
Prototype 2 Gamepad Joystick Setting - YouTube
Leveling up Concept Nyx with new controller concept
Prototype control pad offers generational leap in tactile feedback for games
Prototype using keyboard and gamepad as triggers.
61 – Gamepad Prototype | Imagine Earth
Hands On With Valve's Steam Controller | PCMag
Prototype 2 Gamepad Joystick Setting - YouTube
Steam Community :: Guide :: Configuring the Prototype Steam Controller Binds
The recently revealed original Xbox controller prototypes keep up a fine tradition of absurdity | Eurogamer.net
/cdn.vox-cdn.com/uploads/chorus_asset/file/23250177/vpavic_220210_5029_0008.jpg "The Steam Controller's troubled trackpads made for a better Steam Deck - The Verge")
The Steam Controller's troubled trackpads made for a better Steam Deck - The Verge
Steam Community :: Guide :: Configuring the Prototype Steam Controller Binds
![Microsoft's custom Xbox Elite Series 2 has finally broken on me [Update]](https://cdn.mobilesyrup.com/wp-content/uploads/2022/11/custom-elite-series-2-gamepad-scaled.jpg "Microsoft's custom Xbox Elite Series 2 has finally broken on me [Update]")
Microsoft's custom Xbox Elite Series 2 has finally broken on me [Update]
Alienware's gaming controller prototype is what Microsoft should've built ages ago | TechRadar
Prototype gamepad setup for Elite Dangerous : r/EliteDangerous
Customize a Limited Edition Redfall Xbox Controller | Xbox
Steam Controller prototype version 2 impressions: Buttoned up | Ars Technica
Video Game Controllers Through the Years
Boss Prototype 2 by BomTaileyGames
Prototype 2: 10 Things It Can Do To Better Its Predecessor
Game controller visualized and controlled with Interactive compoenents! | Figma Community
Valve offers a "different kind of gamepad" with Steam Controller | GamesIndustry.biz
Valve's Steam controller prototype now looks more like your father's controller (pictures) - CNET
