Valve Opens the Steam Frame to Modders — CAD Files, Schematics, and KiCad Designs Free to Download

The Steam Frame launched just over a month ago, and Valve has already done something remarkable: it published the full hardware reference on October 10, 2026, giving modders, accessory makers, and engineers everything they need to build on top of the platform.

What's in the repository

The GitLab-hosted repository includes STEP-format 3D models for the core module, head strap, and controllers. Hackster.io reports that Valve included the position of IR tracking LEDs in the controllers, so accessory designers can avoid blocking them — a small detail that shows Valve is thinking about the actual ecosystem, not just ticking a box.

The expansion port documentation covers both MIPI camera and PCIe interfaces. Valve published two reference PCB designs: a complete one created in Altium, and a simpler version in KiCad — the open-source EDA tool that most hobbyists already use. That's a deliberate choice: the KiCad design lowers the barrier significantly for community hardware projects.

For the Arcturus Vision camera too

PC Guide notes that the exterior 3D files for the Arcturus Vision, a color passthrough camera designed for the Steam Frame, are also included. That opens up bracket and mount designs for anyone who wants to combine the Steam Frame with external sensing hardware.

Commercial use is possible — with caveats

The files ship under a Creative Commons Attribution Non-Commercial Share Alike 4.0 license, which covers personal and community use. Companies interested in commercial applications can approach Valve directly about a licensing arrangement. Valve is upfront that it reserves the right to change hardware designs — so anything built on these specs should expect to track future revisions.

Why this matters

The Steam Deck set the tone for Valve's approach to openness: ship a product, then publish enough that the community can extend it. The Steam Frame is following the same playbook in VR. With demand currently outpacing supply for the headset itself, a growing catalog of community accessories and mods would give early adopters even more reason to stay invested in the platform.

For anyone with a 3D printer, a soldering iron, and some free time, this is an unusual gift from a hardware company: an invitation to build, not just buy.