The spiritual successor to Garry's Mod has arrived. s&box, developed by Facepunch Studios on Valve's Source 2 engine, officially launches on Steam today for $20 — and it's bringing some game-changing innovations to the sandbox genre.
After years of development and community testing, s&box represents a generational leap for user-generated gaming. The platform hands creators a full suite of modern tools to build, share, and monetize their own games within a unified ecosystem. Everything from physics-driven sandbox experiences to fully structured multiplayer games can be crafted and played within the client.
What makes this launch particularly significant is a landmark deal with Valve. Games exported from s&box can be sold directly on Steam — with no restrictions and zero revenue share owed to Facepunch. It's a creator-first model that could reshape how indie developers approach game distribution, effectively turning s&box into both a game and a publishing pipeline.
The Play Fund and Creator Economy
Facepunch has already invested heavily in the creator ecosystem through "The Play Fund," a capital pool sourced from ongoing Garry's Mod profits. The studio has paid out over $500,000 to developers building on the platform even before today's official launch. According to Facepunch, the model is sustainable — the studio pointedly noted they "don't have to fire 1,000 people to keep it working."
A New Identity, Not a Sequel
The eight-person development team has built s&box to be approachable for newcomers while offering the depth that experienced modders demand. Source 2 provides cutting-edge rendering, physics simulation, and networking capabilities — a massive upgrade from the Source 1 foundation that powered Garry's Mod for nearly two decades.
For those worried about the transition, s&box carves its own identity rather than trying to be a direct sequel. While the DNA of community-driven sandbox gaming runs deep, the toolset and creative possibilities have been dramatically expanded. Garry's Mod isn't going anywhere, but s&box is clearly the future Facepunch is betting on.
s&box is available now on Steam for $19.99.