Kingdom deals two decks into eight single-card parking spaces with zero building, then dares you to work the stock's one pass into a 30% win rate.

Kingdom Solitaire is a two-deck member of the Sir Tommy family, one of the oldest branches of the solitaire tree. As in its ancestor, the foundations climb from Ace to King without regard to suit, and there is no building in the tableau at all — the eight piles in the middle of the table are pure parking spaces.
What makes Kingdom unusual is how strict those spaces are. Each pile holds a single card: once a card lands there, nothing may ever be placed on top of it, and its only way out is up to a foundation. Meanwhile the stock is turned one card at a time with no redeal, so every card you cannot play immediately competes for one of the eight slots.
At roughly a 30% win rate, the game earns its difficult reputation. It's played with two decks, and success leans a lot more on foresight than on luck.
Kingdom's single-card parking spaces are its hook, and you'll find more of that same strictness in Sir Tommy Solitaire and Calculation Solitaire.
The same Ace-to-King foundation climb powers the classic Solitaire, so it's a natural next stop.
If you run into anything odd or have an idea that would make the game better, please contact me.
Enjoy playing!
8 foundation piles: Build up from Ace to King, regardless of suit. Each pile is complete at 13 cards.
8 tableau piles: One face-up card each at the start. There is no building here — each pile is a single-card parking space that only accepts a new card once it is empty.
Stock: Click to flip over cards one at a time to the waste. There are no redeals.
Waste: The top card is playable.
There are eight foundation piles.
The foundations are begun with the Aces as they become available. A card can be added to a foundation pile only if it's one rank higher than the pile's current top card, regardless of suit, so any of the eight 9s fits on an 8 of spades. There can be no more than 13 cards in a pile.
If you have played a card too early, the top card of a foundation may be brought back down to an empty tableau space.
Eight tableau piles of one card each. Every card is dealt face-up.
No card may ever be placed on an occupied tableau pile. When a pile's card leaves for a foundation, the empty space may be filled with any single card, whether it comes from the waste or is brought back down from a foundation.
In practice the tableau works like eight one-card cells: choose your parked ranks carefully, because a slot stays blocked until the foundations are ready for its card.
Only one card may be moved at a time; sequences are not permitted.
The remaining 96 cards form the stock, and there is one waste pile.
When you click on the stock, one card is dealt to the waste. You only get a single pass through the stock, so there are no redeals once it runs out.
The top card of the waste can be played to a foundation or to any empty tableau space.