softwarelist
| name | description | notes |
| zx81_cass | Sinclair ZX81 cassettes | |
|
software
| name | supported | description | year | publisher | notes | cloneof |
| nightmpkmp | yes | Nightmare Park and Music Plus | 1981 | Macronics | | |
|
rom
| name | size | crc | sha1 | offset | status | loadflag | value |
| NightmareParkAndMusicPlus.A.NightmarePark.tzx | 11815 | 88d4eed4 | cec6727887610ccb5d5b28e3272c33cb216447e9 | | good | | |
| NightmareParkAndMusicPlus.B.MusicPlus.tzx | 2057 | 5923e5d3 | 7f199e73c33247d227662bb0b76406b8e2ed756d | | good | | |
|
part
| name | interface |
| cass1 | zx81_cass |
| cass2 | zx81_cass |
|