S&box
Multiplayer game creation platform
S&box
S&box (stylised in lowercase and pronounced Sandbox) is an open source video game development engine and online game platform by Facepunch Studios built on the proprietary Source 2 engine. S&box was released on April 28, 2026, and is intended to be a spiritual successor to Garry's Mod, allowing users to create a variety of games and experiences.
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Open boosters, collect cards and trade them. Free to play.
Play for free