Dupligon

Dupligon is a single player casual puzzle game. It was developed by CrazyMonkeyGames and was released on January 21, 2008. It received mostly positive reviews from players.

Dupligon is a free, online puzzle and skill game where players test their ability to recreate shapes from memory. Geared towards challenging spatial reasoning and short-term memory, players are presented with a shape that disappears, leaving them to replicate it in the given space using various geometric pieces. Since the dawn of time, man has struggled with this task, but with Dupligon, accuracy and fun meet in a satisfying gameplay experience.