| Short name | Description | Year | Manufacturer | Runnable | Parent |
|---|---|---|---|---|---|
| cowrace | Cow Race (hack of King Derby) | 2000 | bootleg (Gate In) | Yes | kingdrby |
| kingdrbb | King Derby (Taiwan bootleg) | 1986 | bootleg (Casino Electronics) | Yes | kingdrby |
| kingdrbb2 | King Derby (bootleg set 2) | 198? | bootleg | Yes | kingdrby |
| kingdrby | King Derby (1981) | 1981 | Tazmi | Yes |