Dino Size Battle | Dinosaur Size Card Game

What kind of game is it?

A card game where you and the computer each play a dinosaur card, and the longer creature wins. The sizes aren't printed on the cards, so you have to guess from the picture and the name. When the cards are turned over, the two creatures appear side by side at their true scale, next to the outline of a 1.7 m (5 ft 7 in) person.

How to play

1. Pick one of the 5 dinosaur cards in your hand and play it.
2. The computer plays a card too, and both cards are turned over.
3. The longer creature wins the round. They stand side by side at real size, so you can see just how different they are.
4. Play 5 rounds. Whoever wins more rounds wins the game.

Who it's for

• Kids who want to know more about how big dinosaurs really were
• Parents and kids who like to talk it over: "Which one do you think is bigger?"
• Anyone who wants a quick match in a few minutes

Ages: 6 and up (fun for grown-ups, too)

Free. No sign-up, no download. Play in your browser on phone or computer. The sound is off when you start; tap the 🔇 button to turn it on.

Dinosaurs in the game

240 cards in all, including dinosaurs, flying pterosaurs, sea reptiles and other prehistoric animals. Sizes range from giants like Spinosaurus and Brachiosaurus down to the little Compsognathus. You can check each creature's length in our Dinosaur Encyclopedia (in Japanese).