| Nickname | Real Name | City | Country |
| UB880D | Slovakia | ||
| Udo Graf | Udo Graf | Germany | |
| ultrawen | |||
| Unbeliever | Maksim Muchkaev | Samara | Russia |
| UniSoft | Czech Republic | ||
| Universum | Tomas Vilim | Czech Republic | |
| Unknown | Unknown author | ||
| Unyon | United Kingdom | ||
| UTZ | Germany | ||
| Virtual TR-DOS Authorz Database / 9 of 1756 authorz |
13.12.2019 | ||