| 31614 | Fastload | ZX81 16K | - |
| 41200 | Feed the Fish | ZX81 16K | English |
| 35698 | Ferengi | ZX81 16K | English |
| 29517 | Ferry | ZX81 16K | English |
| 28866 | Ferry Boat | ZX81 16K | English |
| 38716 | Ficheiro (TS 1000) | ZX81 16K | Portuguese |
| 38584 | Ficheiro de Contas Bancárias | ZX81 16K | Portuguese |
| 28867 | Fietser | ZX81 16K | - |
| 35846 | Fighter Pilot | ZX81 16K | English |
| 40741 | Fighter Pilot | ZX81 16K | English |
| 28868 | File Loader | ZX81 16K | English |
| 42500 | File Manager | ZX81 16K | English |
| 28869 | File Text | ZX81 16K | English |
| 41442 | Filing Point | ZX81 16K | English |
| 29414 | Filing System | ZX81 16K | English |
| 29519 | Filing System | ZX81 16K | English |
| 40808 | Fill/Scroll/Reverse Window | ZX81 16K | English |
| 29520 | Film Fun | ZX81 16K | English |
| 28871 | Filters | ZX81 16K | German |
| 28873 | Financieel ZX81 Programma | ZX81 16K | Dutch |