| U-Boat Hunter | (small) |
| U.G.H.! | (small) |
| U.N. Squadron (128k) | (small) |
| Uchi-Mata 1 | (small) |
| Uchi-Mata 2 | (small) |
| Ufo | (small) |
| Ufo | (small) |
| Ufo | (small) |
| UFO-Adventure | (small) |
| Ulises | (small) |
| Ultima Ratio | (small) |
| Ultimate Combat Mission, The (128k) | (small) |
| Ultimate Warrior | (small) |
| Ultra Reflect | (small) |
| Umbral, El | (small) |
| Uncle Jack | (small) |
| Under (???) instructions | (small) |
| Under Ground | (small) |
| Underwurlde | |
| United | (small) |
| Unitrax | (small) |
| Universa (128k) | (small) |
| Universal Hero | (small) |
| Untouchables, The 128 | |
| Untouchables, The 48 part 1 | (small) |
| Untouchables, The 48 part 2 | (small) |
| Up For Grabs | (small) |
| Upir (128k) | (small) |
| Urban | |
| Urban Upstart | (small) |
| Uridium | (small) |
| Uridium Plus | (small) |
| Urquahart Castle | (small) |
| Use Your Loaf | (small) |
| Utok Bile Mysky | (small) |
| Uve Atac | (small) |