Book of Demons is a Hack & Slash Deck-building hybrid in which YOU decide the length of quests. Wield magic cards instead of weapons and slay the armies of darkness in the dungeons below the Old Cathedral. Save the terror-stricken Paperverse from the clutches of the Archdemon himself!
All Reviews:
Very Positive (2,604) - 93% of the 2,604 user reviews for this game are positive.
Release Date:
Dec 13, 2018

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Recent updates View all (51)

December 13

Demons are out of Early Access! Woohoo!

There comes a time in the life of most of the games when they have to spread wings and leave the nest. Yes, I'm talking about exiting Early Access and this time is now.

For this occasion we have prepared a launch trailer narrated by the Archdemon himself:

Book of Demons launched in Early Access two years ago. Since then we worked on improving and completing the game with unyielding support from many of you. You were amazing and together you created the best community we have seen on Steam.

It was an amazing adventure that doesn't end here. We will need a few weeks to prepare the post-launch roadmap so meanwhile let me tell you about the stuff we are adding in today's launch update.

The good stuff

This update brings 16 new cards, each with magical and legendary variants of course.

Invisibility Potion - All classes
Ever stumbled upon a pack of monsters and thought "hey it would be neat to sneak up on them Thief style?". You might like this one. Just make sure to not touch monsters while the potion is active.

Disenchant - All classes
Sometimes it's good to take a step back and see the things for what they really are. Disenchant will convert all elemental monsters' hearts to their regular counterparts for a limited time.

Crystal of Speed - All classes
Need an extra boost to catch up with a gargoyle or pump more damage per second? Picking up loot after combat takes too long? This card might be of use, bumping your movement and attack speed by up to 30%!

Rabbit's Foot - All classes
This one is not exactly new - this card used to be Warrior's helmet but we changed it to a common card for all classes. Now everyone can get much-needed protection from stun effects! Your old Helmet Cards will change into this card automatically.

Poison Nova - The Mage
A new spell in Mage's arsenal brings to the table the one element he was lacking: poison. And in a form of a lethal blast, no less. Each projectile seeks the nearest target so positioning and timing are crucial!

Teleport Others - The Mage
Ever got frustrated with spellcasters teleporting monsters on you? Pay them with the same coin and teleport everyone away! A new powerful crowd control tool in Mage's arsenal.

Voodoo Doll - The Mage
Sometimes the best way to deal with the pain is to share it. Link monsters with this card and all damage with be propagated along the links.

Chaotic Tiara - The Mage
Bring some randomness to your adventure. Tiara defends you in most unpredictable ways!

Shocking Trap - The Rogue
Rogues love traps and other lethal contraptions. Control the area around you by setting up electrical mines that will shock your opponents!

Elemental Trap - The Rogue
The less shocking but very useful trap that will freeze and burn anyone who steps into it. Except for Rogue, of course, she is not clumsy enough to trip her own traps. That would be unprofessional.

Barrage - The Rogue
Launch a cloud of arrows that will make everything in a selected area look like a porcupine. Perfect for when you are feeling like fighting in a shade.

Fan - The Rogue
A magical gadget that summons a wind that blows away from the hero. Slows approaching monsters down and gives the Rogue time to punch a few holes in them.

Ice Blast - The Warrior
Freeze and blow away everything in a chosen direction. Simple, effective, and very satisfying to use.

Relic of Rage- The Warrior
An arcane artifact that focuses rage against a certain type of monster. The more you hit the same type of monster in a row the more often special attack triggers.

Whetstone - The Warrior
Whoever said that the pen is mightier than the sword obviously didn't have a good whetstone. Use before battle to boost damage output.

Claymore - The Warrior
The ultimate path cleaner, an enchanted blade that deals extra damage to monsters standing on the path.

Electric Helmet - The Warrior
Every Warrior should know how to protect against the static charge, but only professionalists know how to use it against their enemies.

Collectors Edition
We have also prepared a special edition of the game, including the artbook and soundtrack. It's already included in supporters bundle, of course, but can be bought separately to further support us if you are not up for Supporter's Pack.

Adam has been working for some time on a digital artbook containing unpublished art, sketches, and prototypes for locations and monsters in Book of Demons. If you would like an insight into how the game visual style came to be what it is now this might be a treat.

If you are into music and would like to enjoy Book of Demons' soundtrack Matt has prepared all our tracks in high quality (both flac and mp3).

Over the years we have created many game related wallpapers for our own use. We bundled them in Collector's Content. 18 wallpapers in 2160p (16:9) and 2400p (16:10) resolutions. All wallpapers are without any logos or overlay text.

Digital poster
High-resolution Book of Demons Key-art digital poster with source PSD file.

You can read more about the content here:

What now?
This is, of course, not the end of the road for the Book of Demons and the series but rather just a beginning. Right now we have to handle the launch but in a few weeks, we will be back with the post-launch roadmap for stuff we want to add to the game.

"Launch, nice! What can I do to help?"
With new games being announced and new storefronts opening (seems like a new thing every day!) keeping ahead of the game is difficult (pun intended). But you are legion and if each one of you, our handsome players, will help we can shoot for the moon!

  • Tell your friends about the game.
  • Write a review on Steam
  • Play the game, check out the new stuff we added over the course of Early Access - playing the game makes it more visible in Steam.
  • Stay awesome, you rock for even reading this paragraph and considering spreading the word, means a lot to us :paperheart:

Here I would usually post a changelog, but this time I should probably post all the changelogs from the Early Access and they are over 1500 lines long :archduck:

And if you want to ask us stuff consider checking out our "Ask Us Anything" thread we are doing on Reddit right now. There isn't much to do during the launch but sit and stress out so that's how we will keep ourselves distracted :paperdeath:

As always,
Stay safe in the paper dungeons :archduck:
Konstanty and the whole Thing Trunk team
42 comments Read more

December 6

One week to release: The song trailer!

As you might already know Book of Demons is exiting Early Access on December 13th, exactly a week from now. Game launches need trailers. And what better for a trailer than a celebratory song performed by local townsfolk?

Looking ahead
A week, huh? It's hard to believe we are almost there. While we prepare everything on our end (spoiler alert, we will have one more final trailer for the launch) it would be awesome if you guys could support us on your end. You can consider one or more of many ways in which you can help:

As always,
Slay safe in the paper dungeons :archduck:
7 comments Read more


“Nostalgia without disappointments, frustrations and huge time investments - that’s the ambitious goal of Book of Demons, at once a parody and a tribute to the original Diablo, made in cute paper cut-out graphics.”
Rock Paper Shotgun

“Book of Demons aims to fuse the strategy and depth of Diablo with the style and charm of Paper Mario by using a unique movement and combat system, more accessible action-RPG mechanics, and a fair dose of humor intertwined with its dark theme.”
Game Informer

“Book of Demons is bound to entice newcomers to the genre as well as a long time action RPG fans who have been longing for a different kind of dungeon crawler.”


About the Supporter's Pack

To learn more about the Supporter’s Pack click here.

If you already have Book of Demons in your library and want to upgrade to the Supporter’s Pack version, please purchase the Book of Demons to Supporter's Pack Upgrade. This product only works for owners of the game. If you wish to support us and buy the game and Supporter’s Pack as one, please purchase the Return 2 Games Supporter Pack.


Want to try Book of Demons without any commitment? Click here to try the free Demo.

About This Game

Book of Demons is a Hack & Slash Deck-building hybrid in which YOU decide the length of quests. Wield magic cards instead of weapons and slay the armies of darkness in the dungeons below the Old Cathedral. Save the terror-stricken Paperverse from the clutches of the Archdemon himself!

Procedurally Generated Dungeons
Roguelike Mode for fans of extreme challenge
70+ different types of monsters, with different traits and custom mechanics
Xbox and Steam controller support
Dungeons & Streamers - Twitch and Mixer integration
Monthly and all-time Leaderboards, 200+ Achievements

Book of Demons is the first installment of Return 2 Games - a series of original mid-core titles, inspired by the early golden days of PC gaming.

Cards and Deckbuilding

It’s not a card game, but items, spells, and skills are all expressed as cards. The strategy lies in adapting your hand to each situation. Cards can be upgraded with runes and you can find many variants with diverse bonuses. Legendaries are the most epic but hard to acquire.

Tailored sessions with Flexiscope

Book of Demons respects your time. It features the Flexiscope engine which allows you to divide the game into sessions of any size. It even learns your pace of gaming and predicts the time to complete the next session.

Unique Mechanics

Simplified movement and fight mechanics is where Book of Demons differs the most from other hack & slash games. There is often not enough time to click-remove all of the obstacles such as monster shields, enemy spells, poison, or knocked cards, so timing, card selection and order of execution are critical.

Hack & Slash in the world of Paperverse

Book of Demons takes place in Paperverse, a world that exists entirely inside a pop-up book.
It’s a tale of good and evil about saving the world from the ultimate devilry. Sounds familiar? Inspired by the dark and gloomy atmosphere of the first Diablo game, Book of Demons is part tribute part parody of hack & slash classics.

Comfort of Gameplay

Many Book of Demons features were designed with gameplay comfort in mind. Points of interest are marked at the top of the screen and get revealed once you get closer. Your character leaves footprints, which can be used to track your way back or notice paths already visited without opening the map.

Challenging Endgame

On average it takes about 10 hours to complete the campaign with a single class, but maxing out a character and mastering all of the higher Freeplay difficulty levels and Quests takes much longer. The Roguelike mode offers another level of challenge with permadeath, restricted healing and even more obstacles to overcome.

Dungeons & Streamers

System Requirements

Mac OS X
    • OS: Windows 7, 8, 8.1, 10
    • Processor: 1.7 GHz Dual Core or Greater
    • Memory: 2 GB RAM
    • Graphics: 512 MB DirectX 9.0c compatible graphics card
    • DirectX: Version 9.0c
    • Storage: 1 GB available space
    • Sound Card: DirectX 9.0c compatible
    • OS: OSX 10.12+
    • Memory: 2 GB RAM
    • Graphics: Open GL 3.3+ Compliant
    • Storage: 1 GB available space

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