| Nickname | Real Name | City | Country |
| UB880D | Slovakia | ||
| Udo Graf | Udo Graf | Germany | |
| Uglifruit | Andy Jenkinson | United Kingdom | |
| ultrawen | |||
| Unbeliever | Maksim Muchkaev | Samara | Russia |
| Unbig | Небольшой Тылль // alias | ||
| UniSoft | Czech Republic | ||
| Universum | Tomas Vilim | Czech Republic | |
| Unknown | Unknown author | ||
| Unyon | United Kingdom | ||
| Ureshipan | |||
| UriS | Belgorod | Russia | |
| Uros Justin | Slovenia | ||
| urris | |||
| USA-SOFTware | Unknown // alias | ||
| USA-SOFTware | |||
| UTZ | Germany | ||
| Virtual TR-DOS Authorz Database / 17 of 2383 authorz |
04.06.2023 | ||