Win the game by strategically shifting tableau piles. Be clever in your moves and plan ahead to achieve victory.

The aim of the game is simple: move all cards to the 8 foundations at the top of the screen, building up by suit and starting with the cards of the same rank as the card dealt to the leftmost foundation, wrapping from K to A if necessary. At the beginning of the game, one face-up card is dealt to the leftmost foundation serving as the starting rank. Once this is done, the action really starts.
The game has 9 tableau piles under the foundations. Each of the 4 tableau piles on the left side is dealt 1 face-up card, while each of the 5 tableau piles on the right side is dealt 8 face-up cards. Additionally, 13 face-up cards will be dealt to the reserve pile on the left of the tableau piles. The remaining cards will be placed face-down to the stock pile at the top left corner of the screen, and 1 face-up card will be dealt to the discard pile on the right of the stock pile.
The 4 tableau piles on the left side are to be built down by alternating colors, while the 5 tableau piles on the right side are to be built down by suit. In both cases, cards should be wrapped from A to K if necessary. The game allows you to move a group of cards to another tableau pile if it forms a legal descending sequence in its current tableau pile. This movement is called "shift". For example, a group containing a 7 of spades and a 6 of hearts on a tableau pile on the left side can be moved as a group to a tableau pile on the right side if they form a legal sequence on the left side.
The top cards on the reserve pile and the discard pile can be moved to a tableau pile or a foundation. If you run out of moves or options, the stock pile can be clicked, which deals a new card to the discard pile. Furthermore, the stock pile allows 2 redeals, making it easier to create strategies.
To be successful in Demons and Thieves, one must make as many strategic shifts among the tableau piles as possible. This requires skill, organizational ability, and patience. It is a must-have for anyone looking for a challenging and enjoyable solitaire experience.
Version 1.0.2: Updated arrow graphic in instructions page