Oniria — the world of an ancient civiliation of dragons. Tales describe this land as an idyllic paradise filled with marvelous dragon-made wonders and surrounded by a flourishing wilderness. The only portal to Oniria is the Wonder Book, an ancient tome locked away in an abandoned tower. It sleeps, covered in dust, waiting for the one thing it desires most: you.

Wonder Book is a pop-up game for up to 4 players in which each player takes the role of a teenage kid in a group of adventurous friends. This is a co-operative game in which everyone wins or loses as a team.

The game is divided into six consecutive scenarios ("chapters"), each composed of a specific deck of pre-sorted cards that contain the rules, the story, and the challenges you have to face. Every chapter has you explore a new part of the interactive 3D cardboard pop-up book and reveals more about the world in which your adventure is set.

Beginning with the first card of the chapter deck, the story unfolds until you reach a goal card. These cards will show a goal that must be achieved to proceed and explain how the players' and enemies' turns take place. Every hero can perform three actions per turn, including moving and fighting, using their individual skills, collecting sparks of magic (used to perform special actions), and interacting with cards and pop-ups. Once all heroes have taken their turn, a Wyrm card will determine how the enemies will respond by moving, attacking, spawning, or doing something unexpected.

The basic mechanisms are easy to understand, but the game keeps changing as each scenario offers different things to do. You will find yourself exploring, solving riddles, fighting bosses, playing little minigames, looking for clues...anything is possible during the story!