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About Book of Demons
Book of Demons is a hack-and-slash game set in the Paperverse, a world contained entirely inside a pop-up book. You descend into the dungeons beneath the Old Cathedral to defeat the armies of darkness and save the terror-stricken world from the Archdemon. Its tale of good and evil draws on the dark atmosphere of the first Diablo game while paying tribute to and parodying hack-and-slash classics.
Cards and combat
You use cards instead of conventional weapons: items, spells and skills are all represented as cards. You adapt your hand to each situation, choosing the cards to use and the order in which to play them. Cards can be upgraded with runes, and variants offer different bonuses; legendary cards are powerful but hard to acquire.
Movement and combat use simplified mechanics. You may not have time to deal with every obstacle, such as monster shields, enemy spells, poison or knocked cards, so timing and card choices matter. The dungeons are procedurally generated and contain more than 70 types of monsters, each with its own traits and mechanics.
Quests and sessions
You decide how long each quest lasts. The Flexiscope engine lets you divide play into sessions of any length, learns your pace and predicts how long the next session will take.
Points of interest appear at the top of the screen and are revealed as you approach them. Your character leaves footprints to help you find your way back and identify paths you have already visited without opening the map.
Campaign and challenges
The campaign takes about 10 hours to complete with a single class. Developing a character to the maximum and mastering the higher Freeplay difficulty levels and Quests takes longer. Roguelike mode adds permadeath, restricted healing and further obstacles.
The game also includes monthly and all-time leaderboards and more than 200 achievements.
Frequently asked questions
The best price for Book of Demons is $24.99 at Humble Store. It is the only shop with an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Nintendo. Redeem the key there and Book of Demons stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
No. Book of Demons is a single-player game.
Yes. Book of Demons is the full base game. You need nothing else to play it.











