What is a casual game?
Casual games are games that usually exhibit simple rules that do not require excessive demands on time and learned skills.
Brief History
The first successful casual game is generally considered to be the arcade game Pac-Man that was released by Namco in 1980.
Tetris is the next notably iconic casual game. It was released by Nintendo for the Game Boy in 1989.
From 1990, a number of successful casual games were released for the computer after the release of Microsoft Windows. Some of the iconic games of this era include:
Microsoft's Solitaire
Minesweeper
Sierra On-Line's Hoyle's Official Book of Games
Crazy Nick's Software Picks
Villa Crespo's The Coffee Break Series
Epyx's Chip's Challenge