softwarelist
| name | description | notes |
| zx81_cass | Sinclair ZX81 cassettes | |
|
software
| name | supported | description | year | publisher | notes | cloneof |
| similesc | yes | Similes Countdown | 1981 | AVC Software | | |
|
rom
| name | size | crc | sha1 | offset | status | loadflag | value |
| SimilesCountdown.tzx | 10151 | fbbcdef4 | 7cd764fcbd90d455fb2d31ceec7cda10b08ec8cd | | good | | |
|
part
| name | interface |
| cass1 | zx81_cass |
|