The original PlayStation launched 20 years ago today and to celebrate, Sony has unveiled a special edition PSone-themed PlayStation 4 console.

The 20th Anniversary Edition PlayStation 4 will not be available via traditional retail channels, but there will be other ways to get your hands on one. Only 12300 will be made worldwide – the number of original PlayStations that were manufactured in the console's first run.

The PlayStation 1 was released on December 3, 1994 in Japan. At that time, its main rivals were the Sega Saturn – which hit shelves a month earlier – the Atari Jaguar, and the 3DO Interactive Multiplayer. The Nintendo 64 was still 18 months away.

PlayStation turns 20, unveils special edition PlayStation 4
PlayStation turns 20, unveils special edition PlayStation 4
PlayStation turns 20, unveils special edition PlayStation 4
PlayStation turns 20, unveils special edition PlayStation 4

“In 1994, many outsiders thought that Sony was slightly crazy to launch the original PlayStation into an incredibly competitive gaming market. Who could blame them?” wrote president of Sony’s Worldwide Studios Shuhei Yoshida on PlayStation Blog.

“Sony Computer Entertainment, founded by my mentor Ken Kutaragi, was a project borne out of sincere passion and deep admiration for the craft of game development.

“The mid ’90s were an exciting time for game developers, driven by the explosion of powerful but affordable 3D graphics rendering hardware and the birth of many young and adventurous development studios,” he added.

“The original PlayStation was meant to embody that sense of adventure and discovery, that sense that anything was possible.”

Meanwhile, Crash Bandicoot, Uncharted and The Last of Us developer Naughty Dog has posted a look back at 20 years of developing for PlayStation, while other developers including DoubleFine CEO Tim Schafer and Comcept founder Keiji Inafune have listed their favourite PlayStation 1 games.

In addition, you can check out 20 years of PlayStation advertisements here.