A Windows 3.0/3.1 port of "SimCity" was released in 1992. It runs in the Windows GDI with new sounds and music, either PC-Speaker type or digital/MIDI type. The Windows PC-Speaker sound/music is quite innovative. Two later CD-ROM versions were released: One by Interplay in 1994 for DOS, with new 256 color graphics and event-triggered movies. The second is a Deluxe version by Maxis in 1995 with new 256-color graphics and sound, and also including all 6 graphics sets and a new Terrain Editor.