Valve Will Let S&box Creators Ship Standalone Steam Games

A high-ranking r/gamedev post is spotlighting a potentially important distribution shift for creator-made PC games. Rock Paper Shotgun reports that Facepunch has signed a new license with Valve that is meant to let developers export projects from S&box and ship them as standalone Steam games without paying Facepunch a fee.

S&box is Garry Newman’s long-in-development follow-up to Garry's Mod, built as an open source game development platform on a modified Source 2 base. According to the report, the platform is set to launch on April 28, and the new Valve agreement could give it a much clearer commercial story than many user-generated content tools have.

What changes for creators

The core point is not just that people can build inside S&box, but that their creations may be able to leave the platform and stand on their own as Steam products. Newman said Facepunch still needs to finish its own license with creators and double-check the details, so this is not a one-click publishing promise yet. Even so, the direction is significant because it lowers the fear that creator work will be trapped inside a single sandbox.

S&box is targeting an April 28 launch.

Valve’s new license is intended to allow standalone Steam releases exported from the editor.

Facepunch says creators would not pay it a separate fee for those releases.

RPS says the first likely pilot project is My Summer Cottage, a multiplayer Finnish life sim already being built with S&box. If that path works, S&box could become more than a spiritual successor to Garry's Mod. It could function as a pipeline from modding and prototyping into full commercial PC launches.

For game developers, that is the real headline. The barrier between community creativity and store-ready products may be getting thinner, and Valve appears willing to support that transition. If Facepunch can execute the licensing and tooling cleanly, S&box may become one of the more interesting creator ecosystems to watch on Steam this year.