So instead variety packs are popular. Players want to know that they can do well, achieve some degree success. Keeping the rules simple is important. This can be done partially by dividing a game into smaller portions. Good if you can learn by just watching.
Different people prefer different types of competition.
From the perspective of an experienced puzzle designer who is new to computers, what the computer offers is movement and sound, which can give rise to whole new types of card games, even though cards have been around for a long time. Should make you feel clever. A hierarchy of progressively less cryptic hints can help. Aesthetic, cuteness appeal. Gradually increasing difficulty.