Digger (19xx)(-)[a][16K] ROM for Sinclair ZX81 (). Digger (19xx)(-)[a][16K] game is available to play online and only onRoms Games. Digger (19xx)(-)[a][16K] ROM for Sinclair ZX81 requires an emulator to play the game offline. This Game is English (USA) Version and is the highest quality available.