Classic Solitaire Variations:
* Spider Solitaire: Several decks are used, and you must build down suits in descending order, starting with kings.
* Klondike Solitaire: The classic version with a stock pile, waste pile, and foundations.
* FreeCell Solitaire: Uses four cells to hold cards temporarily, making it more challenging.
* Pyramid Solitaire: Two piles of cards are formed into pyramids, and you match cards that add up to 13 to remove them.
* Canfield Solitaire: A challenging game with a reserve pile, tableau, and foundations.
Other One-Player Card Games:
* Patience: A general term for a single-player card game that typically involves building sequences.
* Cribbage: You can play against a computer opponent in this classic game.
* Gin Rummy: You can play against a computer opponent in this game, although the rules are slightly different from the two-player version.
* Hearts: You can play against a computer opponent in this game, with slightly modified rules.
* Spades: You can play against a computer opponent, which will typically play to try and win tricks instead of taking hearts or spades.
Specialty Card Games:
* Tarot Card Games: Many games exist using a tarot deck, like "The Game of Life" or "The Journey Through the Tarot."
* Deck Building Games: Games like "Dominion" or "Thunderstone" can be played solo with rules variations.
App-Based Games:
* Solitaire apps: Many mobile apps offer variations on solitaire, some with unique twists and features.
* Card Game Apps: Numerous apps allow you to play various card games against AI opponents, including classic and modern variations.
This is just a starting point. There are many other one-player card games out there, some with unique rules and challenges. Experiment and find the ones you enjoy the most!