Duotaire Free

Duotaire Free is a one-player game based on the traditional solitaire style of Klondike. You play against the CPU at the same time, playing your own game but sharing common foundation piles. Each card played on the foundation counts for one point. The game ends when both you and the CPU agree you have no more plays and the player with the most points wins.

The board is similar to the Klondike style layout, most notably there are only five tableau piles instead of seven, and of those five only the last four are used to play off cards. Unlike standard solitaire, your object is not necessarily to play every card; your object is to score more points than your opponent by utilizing both your cards and your foundation plays to your advantage.

This free version of the game has a "nag screen" that is displayed for fifteen seconds at the end of every game, and the "Play Partner" function is disabled.