The most successful game ever made isn’t World of Warcraft, Tetris or even The Sims.
Click-for-click, nothing has wasted more time than Minesweeper, a little game that debuted back in 1990 as part of the Windows Entertainment Pack, before being promoted to a standard feature in Windows 3.1 and onwards.
via The most successful game ever: a history of Minesweeper | News | TechRadar UK.