Hack & slash distilled to its purest form. Devilishly charming and fun as hell. Slay the armies of darkness in the dungeons below the Old Cathedral and save the terror-stricken Paperverse from the clutches of the Archdemon himself.
Recent Reviews:
Mostly Positive (19) - 73% of the 19 user reviews in the last 30 days are positive.
All Reviews:
Overwhelmingly Positive (1,440) - 95% of the 1,440 user reviews for this game are positive.
Release Date:
Jul 28, 2016

Sign in to add this item to your wishlist, follow it, or mark it as not interested

Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“Book of Demons has been in development for roughly three years and at this point spent over a year in the Early Access. All the core features are already in place, we’ve gathered a ton of great feedback from our close-knit community that helped us form the game to the current state. More feedback from a fresh point of view, your point, is always welcome!”

Approximately how long will this game be in Early Access?

“This will depend on the feedback from the community, but based on the current state of the game we are fairly certain that it will be ready for final release in the second half of 2018.”

How is the full version planned to differ from the Early Access version?

“The current state of the game reflects well the core features that will be present in the full version. We will now focus on bringing in planned features, polishing the gameplay, balancing and fixing the occasional bugs.”

What is the current state of the Early Access version?

“With all the core mechanics, the whole campaign, and the Freeplay mode in place the game can be played from start to end. It lacks some of the content like some skill cards or enemies, and a lot of sounds. We would also like to give it more polish improving effects and balance based on player’s feedback. We also have a detailed roadmap outlining main features that will make it into the game before launch in this thread.”

Will the game be priced differently during and after Early Access?

“We haven’t decided yet.”

How are you planning on involving the Community in your development process?

“We have added a special feedback widget to the game, so any player can send feedback any time while playing. Apart from this we frequently communicate through Twitter, Facebook and we plan to communicate even more through our Steam Community Hub, videos and development blog, to keep the players up to date. Our community is incredibly important to us and we will consider all feedback provided; please keep in mind, it will not always be possible for us to implement all suggestions or to respond to every comment individually.”
Read more

Buy Book of Demons

WEEK LONG DEAL! Offer ends April 30


Packages that include this game

Buy Return 2 Games Supporter Pack

Important: 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 Bundle.

Buy Book of Demons to Supporter's Pack Upgrade BUNDLE (?)

Includes 2 items: Book of Demons, Return 2 Games Supporter Pack


Downloadable Content For This Game


Recent updates View all (38)

April 23

Community translations and Minimap Update!

Hello everyone!
This update introduces in-game community translations, various bugfixes, identify all feature, the minimap and, last not least, the updated final roadmap (with dates). Let's talk details.

Community translations

With Chinese, Russian, French, Brasilian Portuguese and Italian community translations finished we are ready to incorporate them into the game. From now on, the most up to date translation into these languages will be available in Options-> Video and Languages window.

Huge thanks to our community translators! :paperheart::paperheart::paperheart:

Please keep in mind the community-sourced translations are on-going so the quality will only improve over time. It would be hugely helpful if you could report issues with translations. Get in touch with us at our official discord server or via email: support@thingtrunk.com! Or you can talk directly to translators in the forums.

The minimap
The minimap was on the very top of the most requested features list so due to popular demand it's finally here! We went with minimalistic representation for maximum readability and to keep the dungeon visible underneath the minimap since we feel that's the most traditional approach.

The map updates as you explore the dungeon, with the path being drawn as you walk and points of interest are marked as you discover them. No more wondering which turn to take on the crossroads.

The default key for minimap is the tab.

By the way, once the level is cleared you can click on the stairs marker (the friendly gizmo that shows you the direction towards the staircase down). It will instantly exit the level for you saving you the jog back. Not everyone knows that feature and it's pretty useful :-)

Identify all
Another often requested feature, the identify all. It's enabled in freeplay since that's when cards start piling up and only if the player has enough gold to identify all cards. It will skip the fluff identify animation and all identified cards will available for inspection after a short animation.

The updated roadmap
Last but not least, the updated roadmap. We have a pretty good idea what lies ahead now.

Up until now, we were sticking to bi-monthly larger updates. Now that we are entering the home stretch the large updates will be more frequent, we are aiming at one every six weeks. Of course, in between, there will be a lot of small updates containing fixes and minor tweaks.

Here is what will happen up until launch:
  • Early June - Difficulty levels. It's tricky to make everyone happy with one difficulty for all so we are going to differentiate by introducing more casual mode and two more difficult modes.
  • Late July - Overhauled Archdemon quest (new bosses, unique mechanics) because the current one is actually a placeholder and is way too forgiving ;-)
  • September - Complete sounds (over 300 new or reworked sounds)
  • October - Mac support
  • Early November - all remaining features and content integrated into the test branch, those willing to do so can begin testing the final build candidate
  • December - The magic happens, the game launches
  • Late December - Christmas!

As always,
Stay safe in the dungeons :paperheart:
8 comments Read more

March 6

Performance update

This update is small but neat, so we decided to give it its own post. Also, more posts mean more opportunities for cool gifs :archduck:

We have identified a possible optimization in the rendering engine that, depending on many factors, could bump FPS up to 25% during big fights. Not that the performance was bad before but more FPS is always better.

We have also identified a possible cause for a black screen on startup issue that some players had and we included that fix as well.

Full changelog
Version 0.91.15370+ 6th March 2018
  • Optimized main rendering loop which should result in up to 25% FPS gain in logic heavy scenes
  • Fixed rare black screen on startup issue
  • Aiming Rogue's arrows with hold button pressed outside of light radius won't snap to nearby doors/staircases anymore
  • Added an extra safety to make sure that doors open on The Cook's level
  • Fixed minor visual glitches in Maze
  • Fixed a crash when playing with the controller and exiting dungeon when a shielded monster was near
  • Updated supporters list in credits

Also just let me remind you that we have official Book of Demons discord server now in case you would like to chat with other players. Or us.


And since this is mainly stability and performance update it's worth mentioning that if you are experiencing any problems with the game make sure to tell us on Discord, post in the forums or shoot us an email. We can't fix what we don't know about :paperdeath:

Stays safe in dungeons :archduck:
10 comments Read more
See all discussions

Report bugs and leave feedback for this game on the discussion boards


“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.”


Do you want to give it a try but don't want to pay? Click here and try the free Demo!


See gameplay previews

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.

About This Game

Book of Demons is hack & slash distilled to its purest form. Devilishly charming and fun as hell. Slay the armies of darkness in the dungeons below the Old Cathedral and save the terror-stricken Paperverse from the clutches of the Archdemon himself. The game is the first installment of Return 2 Games - a series of original mid-core titles, inspired by the early golden days of PC gaming.

Decide the length of quests!

Have only 5 minutes for a game? No problem! Book of Demons allows you to set the length of each quest, thanks to our Flexiscope™ system. It learns your way of playing and gives you the best experience, making Book of Demons the first truly accessible hack & slash!

Build your own deck of devastating skills!

Collect powerful skill cards, combine them depending on the enemies you're facing and assemble your favorite set of devastating powers! But be warned: efficiency of each card will greatly depend on the situation you're in, so be prepared to make constant adjustments!

Relive the classic with a good laugh!

Book of Demons is a universal tale of good and evil about saving the world from total destruction and ultimate devilry! Sounds familiar? Well, how about retelling the story in a different way, with a humorous twist of a parody?

Be a part of a one-of-a-kind adventure!

Never explore the same dungeon twice - in Book of Demons every level is a procedurally generated, randomly-populated adventure of its own! You won't get bored by the diversity of monsters either - there are over 70 kinds of creatures waiting to be slain: lurking scorpions, snake archers, mad goatmen, not-so-sexy succubi... you get the idea.

Hack & slash in the world of Paperverse!

Book of Demons is indeed a dark fantasy hack & slash, but unlike other action role-playing games, it's set in the pop-up book world of Paperverse. The paper-cut universe is one of the hallmarks of Return 2 Games - a series of mid-core games, inspired by the early golden days of PC gaming. Book of Demons is the first installment of the Return 2 Games series.

Looking for even more challenge?

Slaying the Archdemon won't be the end of the story. In Book of Demons, you can master the campaign with 3 different classes (Warrior, Rogue or Mage), revisit your favorite quests in Freeplay mode or rise to the challenge and explore the dungeons on higher difficulty levels (the last one is called Massacre, with good reason).

System Requirements

    • 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
Customer reviews
High Volume of Reviews Detected:
Exclude  or  View Only
Review Type

Purchase Type


Date Range
To view reviews within a date range, please click and drag a selection on a graph above or click on a specific bar.

Show graph

Display As:
Review Beta NEW!
When enabled, will sort reviews by new Helpfulness score. Read more about it in the blog post.
Show graph
Hide graph
Review Helpfulness Beta Enabled
There are no more reviews that match the filters set above
Adjust the filters above to see other reviews
Loading reviews...