Return 2 Games: Book of Demons

A love letter to classic Hack & Slash games

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Book of Demons

Available on Windows & Mac

View Trailer

Translations avalilable

About Book of Demons

A deck-building hack and slash adventure, where it's the player who decides the length of quests!

It's you who decide
the length of quests!

Dynamic 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 always gives you the best experience, making Book of Demons the first truly accessible hack & slash!

Build your own deck of devastating skills!

Build own Deck

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!

Revive the classic

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!

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?

180 achivements

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, not without good reason).



A mighty adventurer that believes in a brute power of steel. He is proficient in all kinds of weapon and armour. You can sometimes spot a little madness in his eyes when he is charging a large group of monsters.

Signature Cards



A cunning thief always on a lookout for fame and fortune. Equipped with a bow she wanders dungeons leaving a pile of corpse pierced by her poisonous arrows. Theatricality and deception are her most powerful allies.

Signature Cards



A powerful mystic proficient in all kinds of magic. Wearing only a robe he leaves direct face-to-face combat to his summoned minions, himself bringing devastation from a safe distance.

Signature Cards





For years, the corridors underneath the Cathedral have been used for storing grain, wine and old manuscripts. But lately, the sounds of dripping water and wind howling through the empty halls have been deafened by the groans of despair and noises of bones clunking against an armor.

The Maze is now ruled by a demonic Cook who prepares meals from human flesh for his evil master. Only the bravest of all the heroes can look the creature in the eyes and not end as one of the stew ingredients.



The deepest parts of the old dungeon have been a resting place for all kind of townsfolk. From newborns to greybeards, from peasants to clergy, their remains lay motionless in the coffins.

And it would stay this way for centuries if not for the Bishop who has found the Manuscript of forbidden knowledge. Using foul magic and dark rituals he is rising the army of dead which plunders the Town and murders innocent people.



Dark rituals and corrupted magic have opened the gates of Hell and the demons world collided with the realm of the living. Wicked souls, monstrous creatures and hideous horrors hunger for fresh blood and destroy everything good that stands on their path.

They clear the way for their master - the ruler of Hell, king of the demon army. Archdemon, the darkness itself. He will never stop until he consumes all of this world, like he did with countless realms before. Is there anyone who can stop him?

Dungeons & Streamers DLC

Dungeons & Streamers is a free DLC that adds Twitch and Mixer integration to Book of Demons. You play the game and your audience goes crazy typing commands in the chat.


Positive effects

When in game, the bar at the bottom of the screen always shows the commands available to your audience. In the dungeon, there are always 6 basic interactions (3 positive and 3 negative), followed by two special interactions.


Negative effects

Each basic interaction is associated with an activation chance percentage, shown after the name in parenthesis. This is the chance that a viewer's command will actually work. It falls when too many people trigger the corresponding action and it rises when it sits idle. If too many people trigger the action and it drops to 0% chance, it will go on a cooldown.



When you find a magic card, you will need to bring it to the Sage for identification. When this is a Legendary card (the most rare type of cards) you will be presented with two different cards for your audience to choose. Everyone is entitled to one vote. If there is a tie, the card is selected at random.

Return 2 Games

What is R2G?

Return 2 Games is a series of unique mid-core games inspired by the golden days of PC gaming. There will be 7 games in total, each unique in terms of genre and theme, but all sharing the same grand vision. Each R2G title is a tribute to a single hit game from the 90’s: a reimagining of a single universal story for a brand-new audience, using modern means and innovative gameplay mechanics.

Our goal is to bring back the experiences and universal stories of those hit games and make them accessible to everyone – both casual and hardcore players. We are also simplifying and/or straight-out changing the mechanics and compressing the experience of the original games into extremely short gameplay sessions. This way the games can be enjoyed by people who don’t have much time (like grown-up fans of the classic games, or casual players accustomed to playing Angry Birds).

R2G: Manifesto

Teaser Trailer

Become an R2G Supporter

If you share our sentiment and wish to help us make this series a reality, please consider becoming an official Return 2 Games supporter by purchasing the R2G Supporter Bundle. It's a way for our biggest fans to support our future development and to receive all forthcoming R2G games once they become available. If you already have Book of Demons you can purchase the R2G Supporter Pack on Steam, or you can buy the full bundle in our store.

Sneak Peek

Sneak Peek Sneak Peek is a program designed to give eager people a chance to see our games before release, help us find bugs and shape games together. When you join our program, you'll be able to participate in shaping the final product, and even play early versions of the games. Your fresh perspective and input will help us polish the games and make them as enjoyable as possible.

To learn more and sign up for the Sneak Peek visit our development blog:

But now you can also get access to the whole game during beta stage and help not only in finding bugs but also test game mechanics, the flow of the game and its difficulty. This stage is crucial for the finished game so we aim this offer at die-hard fans who are interested in the game development process and want to have their voice in the shaping of our games. If this looks like something for you, check out the Early Access version of game on Steam.