Question: what are card games you can play by yourself?
Answer: Wish Solitaire.
Emperor. Teach yourself one of the great solo card games: Emperor.
Devil's Grip. Fall into the Devil's Grip and learn this solo, 96-card grid game.
Napoleon at St. Helena. ... 
Streets and Alleys. Learn how to play Streets and Alleys, a game built on foundations.
Accordion. ... 
Klondike. ... 
Spider Solitaire.