Roguebook is a fighting game where you build a deck of heroes to go on an adventure. It draws on Slay The Spire style battles, but with a world to explore where you discover shops, relics, new cards and power-ups.

You find yourself trapped in the Book of Lore of Faeria and must lead your two heroes to victory by exploring the world to build your attacks and unlock more areas. Along with the collecting and powering up, each battle requires you to select a set of cards well-fitted to each enemy.

It's novel because there is no set path to the next challenge or the end of the stage. On each page you use magical brushes and special inks to fill in the world map and discover its secrets. You can choose to paint a direct line towards the final boss, or try to puzzle out the best ways to use every drop of ink to explore as much as possible.

As you progress you learn about your different heroes. Each one has a collection of 50 or so cards, a personal relic and a unique skill tree. You learn how their cards and powers work together so you can intelligently combine different attacks for complementary effects. You can also deploy allies into each battle, to assist with the current fight.

Each time you play through it is different. Not only the heroes you choose but the construction and layout of the world. As you repeat runs things evolve. New challenges become available as you unlock new cards and relics, encouraging you to discover new combos and try new strategies.