Diablo (USA) (Proto) is a prototype version of the game never officially released to the public. Information about the prototype's gameplay and features is scarce.  It's a notable artifact for fans of the Diablo franchise, showcasing the early stages of development.  Precise details about the developer, publisher, and its gameplay mechanics may be difficult to find without dedicated research on early game development history, prototype releases, and leaks.

Diablo (USA) (Proto)

Desert Strike - Return to the Gulf (Europe)