S&Box, also known as Garry's Mod 2 (GMod 2), is a new game from the developers of Garry's Mod and Rust.
Announced in 2017 by the studio Facepunch, its release date is not yet known.
We have little information about it. However we already know that this new version will be based on the engine UE4 (Unreal Engine 4), unlike its predecessor that uses the Source engine.
Designed as a new game, developers already promise many features for customizing your S & Box servers, including a hot loading system to develop addons without having to reload the game. Enough to allow content creators to offer servers always more original!
The content created on Garry's Mod will probably not be compatible with this new game.