Yes, we are live. The second major update after the initial release of Sandbox Apocalypse in November 2024 has just been published. I apologize for the long pause in updates but the refactoring had to be done in "one piece" and took roughly 4 months. No part of the engine has been left untouched by this and testing wasn't exactly easy.
You are able to let up to 3 of your Steam friends join a game of yours or join one of their games. Give it a try! More updates will follow soon.
Cheers,
Ben
Sandbox Apocalypse has gone Multiplayer
Source: Steam Community (opens in a new tab)