| 31775 | Real Estate Investment Analysis | ZX81 16K | - |
| 35715 | Reality | ZX81 16K | English |
| 40014 | Rearrange | ZX81 16K | English |
| 40149 | Rebound | ZX81 16K | English |
| 31965 | Rebound | ZX81 16K | English |
| 41198 | Reckless Russian Roulette | ZX81 16K | English |
| 29233 | Rectangles | ZX81 16K | English |
| 31776 | Red Alert | ZX81 16K | - |
| 29234 | Red Ants | ZX81 16K | English |
| 29235 | Red Baron | ZX81 16K | English |
| 40912 | Reference Search | ZX81 16K | English |
| 40006 | Reflections | ZX81 16K | English |
| 39352 | Regressniver | ZX81 16K | English |
| 29236 | Rekenen | ZX81 16K | Dutch |
| 31778 | Rental Property Manager | ZX81 16K | - |
| 41604 | Renum | ZX81 16K | English |
| 39987 | Renumber | ZX81 16K | English |
| 29620 | Renumber | ZX81 16K | English |
| 40703 | Renumber | ZX81 16K | English |
| 40719 | Renumber | ZX81 16K | English |