| 28854 | Towns in England and Wales | ZX81 16K | English |
| 31848 | Trace | ZX81 16K | - |
| 39950 | Tracker | ZX81 16K | English |
| 35922 | Tractor Beam | ZX81 16K | English |
| 35923 | Tractor Beam UDG | ZX81 16K | English |
| 41207 | Trade | ZX81 16K | English |
| 31849 | Trader | ZX81 16K | - |
| 44607 | Trader Jack | ZX81 16K | English |
| 31850 | Traffic | ZX81 16K | - |
| 34593 | Trail Blazer | ZX81 16K | English |
| 40451 | Train Block | ZX81 16K | English |
| 29396 | Train Race | ZX81 16K | English |
| 41214 | Train Robber | ZX81 16K | English |
| 38116 | Train-Rush | ZX81 16K | French |
| 29397 | Transcoder | ZX81 16K | - |
| 29206 | Transform Purchase Day Book 1 | ZX81 16K | English |
| 29261 | Transform Sales Day Book 1 | ZX81 16K | - |
| 28687 | Transform Software | ZX81 16K | English |
| 29398 | Trap | ZX81 16K | Dutch |
| 39635 | Trap | ZX81 16K | English |