KnowledgeLand

KnowledgeLand is a bonus disc included with the original 1996 releases of JumpStart Adventures 3rd Grade: Mystery Mountain and JumpStart Adventures 4th Grade: Haunted Island. It is not explicitly labeled as a JumpStart game, but contains demos for JumpStart games. It is an example of an early massively-multiplayer online game, though it can also be played single-player. In this sense, it is a very distant precursor to the current JumpStart 3D Virtual World.