Valve released the new Steam Controller and Puck CAD files for modders

By Liam Dawe - 6 May 2026 at 8:50 am UTC

Along with the recent stable Steam client update bringing full support for the Steam Controller, Valve also released the CAD files for modders.

This is great news for anyone who wants to "hack, mod, or design accessories for the Steam Controller and Puck" say Valve. What have they released? The "CAD files for the external shell (surface topology) of Steam Controller and Puck available for download under a Creative Commons license" which includes "an STP model of each, an STL model of each, and an engineering drawing with critical features/keep outs for each".

You can find all the files on their GitLab.

I fully expect we'll end up seeing some accessory makers design entirely new casing for the Steam Controller, just like we saw with the Steam Deck. We already have dbrand skins, but actual casing would be interesting to mod.

Valve continue to impress with their openness when it comes to their hardware.

Article taken from GamingOnLinux.com.

Tags: Hardware, Misc, Steam, Steam Controller, Valve

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About the author - Liam Dawe

I am the owner of GamingOnLinux. After discovering Linux back in the days of Mandrake in 2003, I constantly checked on the progress of Linux until Ubuntu appeared on the scene and it helped me to really love it. You can reach me easily by emailing GamingOnLinux directly. You can follow me personally on Mastodon [External Link].
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2 comments

scaine 2 hours ago

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This isn't of interest to me, so I can't say for sure, but I can't think of many other big-name vendors that would do this. I mean, I expect they'll already have given this to skin-creator vendors like dbrand, but making the schematic public, directly? That's pretty cool.

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LoudTechie 45 minutes ago

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Quoting: scaineThis isn't of interest to me, so I can't say for sure, but I can't think of many other big-name vendors that would do this. I mean, I expect they'll already have given this to skin-creator vendors like dbrand, but making the schematic public, directly? That's pretty cool.

There certainly aren't.
Physical design publications are pretty sparse and often restricted.
Even source code is more often published than CAD files.

This's exactly, because "it's not of interest to you".
Physical garage development is monumentally more expensive than software development.
Meaning that a much smaller group cares to do it and thus cares to advertise it.

Edit:
The most major party besides Valve that does this seems to be [framework](https://github.com/FrameworkComputer/Framework-Laptop-13).

Last edited by LoudTechie on 6 May 2026 at 12:14 pm UTC

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