| List | Name | Description | Year | Publisher | Supported | Clone |
|
zx81_cass
| zxchess2_imp | ZX Chess II (improved) | 1981 | Artic | yes | zxchess2 |
|
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| zxchess2_ips | ZX Chess II (I.P.S.) | 1982 | International Publishing & Software Inc. | yes | zxchess2 |
|
zx81_cass
| zxcompen | ZX Compendium | 1983 | Carnell Software | yes | |
|
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| zxcompil | ZX Compiler | 1982 | Silversoft | yes | |
|
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| zxdb | ZXDB Disassembler/Debugger | 1982 | Bug-Byte | yes | |
|
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| zxed | ZXED | 1982 | dK'Tronics | no | |
|
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| zxforth | ZX Forth | 198? | Artic | yes | |
|
zx81_cass
| zxforthi | ZX Forth (I.P.S.) | 1982 | International Publishing & Software Inc. | yes | zxforth |
|
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| zxmc | ZX-MC | 198? | Picturesque | yes | |
|
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| zxmsuped | ZXM Super Editor | 1983 | Timedata | yes | |
|
zx81_cass
| zxpbook | The ZX81 Pocket Book | 1982 | Phipps Associates | yes | |
|
zx81_cass
| zxprofil | ZX Pro/File | 1983 | Thomas B. Woods | yes | |
|
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| zxsidepr | ZX-Sideprint | 1982 | Microsphere | yes | |
|
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| zxtk | ZXTK | 1982 | Bug-Byte | yes | |
|
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| zxtri | ZX Tri | 1983 | Direco International | yes | |
|
zx81_cass
| zxtricat | Z-Xtricator | 1984 | Software Farm | yes | |