Which platform received the original Diablo before its later PlayStation version?

Microsoft Windows received the original Diablo before its later PlayStation version.

Diablo was first released for Microsoft Windows in December 1996. Electronic Arts later published a PlayStation version in 1998, bringing the action role-playing game to a home console. The PlayStation edition adapted the interface and controls for a gamepad while retaining the dungeon-crawling structure and central story.

The original Windows release established the series’ signature formula: randomized dungeon layouts, real-time combat, equipment with varying properties, and repeated trips to town for healing, identification, and supplies. Its success on computers helped Blizzard expand the franchise into additional platforms and sequels.

A common mix-up is treating the PlayStation edition as the original release because it was the first console version. It was not the debut platform; the game began on Windows and was ported later.