Crystal Mines II: Buried Treasure Expansion Pack(2000)

In 2000, Songbird Productions produced a sequel, Crystal Mines II: Buried Treasure on CD-ROM for Microsoft Windows. This CD-ROM required the original game and a Lynx to PC serial cable to run, allowing the editing and creation of all new levels. This was followed in 2003 by a cartridge release of Crystal Mines II: Buried Treasure with the original 181 levels and 125 new levels.