At a glance
- What it is
- Drop-in multiplayer lobby framework for s&box
- Get it on
- s&box · GitHub
- Use cases
- Party games, round-based modes, sandboxes
Media
Features
Auto-Hosting
LobbyNetworkManager opens a lobby on launch so Steam friends can join, keeping one networked player per connection plus optional bots.
Citizen Player Built In
The example player uses the standard Citizen with WASD, run, jump, a third-person camera and animation — the owner drives, proxies stay in sync.
Lobby → Round → Lobby
LobbyDirector runs a free-roam lobby, an in-world button that opens a mode menu, a synced countdown, and the return to the lobby afterwards.
Pluggable Game Modes
Write your gameplay as an IGameMode and make any pawn lobby-aware by implementing ILobbyAgent — one clean extension point, no framework lock-in.
Free-Roam Sandbox
Ignore the round side entirely and it is just a free-roam multiplayer sandbox, ready to run out of the box.
Drop-In & Open Source
Copy the library into your project's Libraries folder and the editor picks it up. MIT licensed, with a runnable demo project.


