Reversi (Microsoft, Windows, 1985)
This game has revisional differences.
Reversi was the first game bundled with Microsoft Windows, mostly forgotten about these days because Microsoft hasn't shipped it with their operating systems since forever (though there were plans to that effect). It's most famously known for its brutal and unforgiving AI.
|Windows 1.x & 2.x||Windows 3.0||Windows 3.1|
The game went to having a bitmap icon in the version bundled with Windows 3.0 rather than a monochrome vector icon.
The Windows 1.x and 2.x versions lacked a help system.
Although this game was not included with Windows 3.1, there appears to be a Windows 3.1 version. This version adds animations, and replaced the green background with a grey one.