Microsoft developed and published the 1999 puzzle game Pandora’s Box.
Pandora’s Box is a Windows game designed by Alexey Pajitnov, the Russian game designer best known as the creator of Tetris. Instead of presenting the Greek myth as an adventure narrative, the game uses the Pandora theme as a framework for a collection of visual puzzles.
The player travels through themed regions and completes puzzles involving pattern recognition, spatial reasoning, and matching. The game was released during Microsoft’s period of publishing several entertainment titles for personal computers, before the company’s later focus became more strongly associated with the Xbox brand.
The title can cause confusion with other games and software products called Pandora’s Box. This question refers specifically to the 1999 Microsoft Windows puzzle game, not to a general puzzle collection, a music service, or an unrelated adaptation of the myth.