Sburb is the human name for a sandbox-style game that takes place superimposed over the real world, rather than in a virtual space. The game is known as Sgrub to the trolls. In the game, the server player is able to manipulate the client's environment in real time in a manner reminiscent of The Sims. The client of the game has no need to interact with the computer and can freely roam around completing objectives. Computers are only necessary for interacting with other players and performing actions like downloading Grist with GristTorrent.
Actions available to the server player include being able to build rooms, add on to existing rooms, deploy game objects such as the Totem Lathe, and manipulate objects in the client's environment, though the server player cannot manipulate objects directly affecting the client player. It is said that the server cannot operate outside of a certain radius of the client, however Rose Lalonde impliesHS at one point that she has been working on the house while John Egbert was away, and Lil Hal later states that he couldn't see Jane through the server's viewport once she left the house.HS In addition, it seems that Dave Strider's time shenanigans interfered with Jade Harley's server application zeroing in on a single Dave automatically. It's possible that the proximity rule only holds before the player enters the Medium. Furthermore, the server's actions are limited by the client's supply of Build Grist.
Each new client-server connection generates a unique session of the game that is apparently independent of all other sessions, unless a daisy-chain of connections is formed with existing players. The exact number of connections varies depending on the length of the chain in question, though the minimum number of players for a normal session, even if additionally null or void, is two.