Marble Worlds - Space Station Expansion Level (PC Cost: $4.95 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions Marble Worlds - Space Station Expansion Level (PC: An expansion world for Marble Worlds. Futuristic graphics take you into a space station complex. Our first expansion for Marble Worlds is possible the most complex and challenging to date. You can have one expansion world installed at any one time. Installing this expansion will replace an existing one if present.