PlayMonster Set Card Game – Travel-Friendly Waterproof Cards, Brain-Building Matching Game for Ages 6+

The PlayMonster Set card game is a fast-paced matching game where players race to identify sets of three cards that share either all the same or all different attributes—color, shape, number, or shading. With over 3 million copies sold, this award-winning game is designed for ages 6 and up and works for any number of players, including solo play. The cards are waterproof and come with a travel clip, making it easy to play at the beach, by the pool, or on the go.

How do you play Set?

Each card shows a combination of four features: color (red, green, or purple), shape (oval, diamond, or squiggle), number (one, two, or three), and shading (solid, striped, or outlined). A SET is any three cards where each feature is either all the same or all different across the three cards. There are no turns—the first player to spot a SET calls it out and collects the cards. The game continues until the deck is exhausted, and the player with the most sets wins.

What makes the cards travel-friendly?

The deck is made from waterproof material, so you can take it outside without worrying about spills or splashes. A built-in travel clip lets you thread the cards through to keep them together—perfect for poolside, beach trips, or tossing into a bag for road trips. The compact form slides easily into a backpack or carry-on.

Why is Set a good choice for family game night?

Set appeals to a wide age range because the rules are simple to learn but the challenge grows as you play. Kids as young as six can grasp the concept, while adults find it engaging and mentally stimulating. Since the game accommodates any number of players (including solo), it works whether you have two people or a crowd. It also encourages quick thinking and visual perception, making it a fun way to exercise the brain together.

What skills does Set help develop?

Set is more than just a game; it's a mental workout. Players practice pattern recognition, rapid decision-making, and visual scanning. Because you must consider color, shape, number, and shading simultaneously, the game strengthens working memory and attention to detail. It requires you to use both analytical and creative thinking at the same time, helping to develop cognitive flexibility. That's why many educators and parents choose it as a learning tool disguised as fun.

Specs at a glance

Frequently asked questions about the Set card game

Can you play Set alone?

Yes. The game can be played solo—simply try to spot sets from the array of cards as quickly as possible. Many people use it as a brain-training exercise on their own.

Does the game come with instructions?

Yes, the package includes a rule booklet that explains the SET logic and provides examples.

Are the cards durable?

The cards are explicitly designed to be waterproof, so they can withstand accidental spills and outdoor use. The included clip helps keep them organized.

How many cards are in the deck?

The product information does not specify the exact card count, but the deck contains enough variety to play many rounds.