Paper Mario Meets Diablo In New Action RPG Book Of Demons

Independent developer Thing Trunk released the announcement trailer to their upcoming (And for now, PC only) action RPG Book Of Demons via their youtube channel yesterday, giving fans a glimpse at the game’s 2d paper-based theme. As the first game in their “Return 2 Games” series, Book Of Demons takes place in a world made completely of paper, which must make it hard to find any equipment with fire resistance.

    What makes Book of Demons stand out from the rest of fantasy hack & slash games are its many twists in the basic gameplay mechanics, paper cut-out graphics, unprecedented accessibility, and a dark theme intertwined with a fair dose of humor any fan of classic games should enjoy. The character system is built around a card system that supersedes and unifies items, skills, and spells. Current hack & slash games employ countless statistics that change the mechanics by a percentile in a continuous fashion. Book of Demons features multiple discrete player and monster mechanics that can be combined in a virtually infinite number of interesting ways to create near endless replayability.
  • Paper cut-out graphics
  • Upgradable card system that unifies items, spells, and skills
  • Unique movement and fighting system for more strategic gameplay
  • Flexiscope™ system that adjusts sessions size to players’ liking
  • Endless end-game mode with 100+ challenges
  • First truly accessible hack & slash
  • Randomized dungeons
  • Single-player campaign with 3 character classes
  • 60+ different monster types
  • Lots of humor

Thing Trunk has promised us that further details – as well as a more in-depth gameplay trailer – are forthcoming. Until that time comes, you can follow Book of Demons’ progress through the developer’s official website.



Carl is both a JRPG fan and a CRPG'er who especially loves European PC games. Even with more than three decades of gaming under his belt, he feels the best of the hobby is yet to come.

  1. dogmentation
    March 11, 2016 at 1:24 pm

    “Card System”
    and into the trash it goes.

  2. Shiggy Diggy Doo
    Shiggy Diggy Doo
    March 11, 2016 at 1:28 pm

    Ay fug you Megaman Battle Network is my favorite series ever.

  3. Kain Yusanagi
    Kain Yusanagi
    March 11, 2016 at 1:34 pm

    How’s about watching the video, and seeing that it’s not some slow random draw bullshit, which is what makes card battle systems tedious?

  4. dogmentation
    March 11, 2016 at 1:37 pm

    and into the trash it goes.

  5. dogmentation
    March 11, 2016 at 1:39 pm

    card integration into any game = garbage.

  6. Dewey Defeats Truman
    Dewey Defeats Truman
    March 11, 2016 at 1:44 pm

    What’s it like having no taste? Card systems are great.

  7. dogmentation
    March 11, 2016 at 1:49 pm

    what’s it like having garbage taste?
    card systems are a needless gewgaw.

  8. CoarseHock
    March 11, 2016 at 1:51 pm

    “Unique movement […] for more strategic gameplay”

    But it looks like the movement is entirely on rails.

  9. Shiggy Diggy Doo
    Shiggy Diggy Doo
    March 11, 2016 at 2:19 pm

    Well I ain’t saying shit because you went above and beyond the call of duty

  10. Nagato
    March 11, 2016 at 2:33 pm

    Dammit Carl, I was expecting turn-based gameplay with timed inputs after the Paper Mario mention in the title :'(

  11. chaoguy
    March 11, 2016 at 3:18 pm

    Muh brother from another mother!

    But yeah, card systems _can_ be annoying. It depends on how often things drop, and the balance of power between common and rarer cards.

  12. chaoguy
    March 11, 2016 at 3:19 pm

    Looks interesting, but I’d need to see more. Here’s hoping they make a demo.

  13. Immahnoob
    March 11, 2016 at 3:25 pm

    It doesn’t look like it’ll hinder gameplay though. Think of it like being able to buy and couple everyone’s skills to make new ones in Diablo.

    Why not?

  14. Kain Yusanagi
    Kain Yusanagi
    March 11, 2016 at 3:44 pm

    Your opinion is garbage.

  15. dogmentation
    March 11, 2016 at 4:02 pm

    No! What have you done?!

  16. ρяøxч
    March 11, 2016 at 4:23 pm

    Seems like a great idea, hope the execution is as good as it seems.

  17. scemar
    March 11, 2016 at 6:08 pm

    rip paper mario :( tho

  18. Johnathon
    March 11, 2016 at 6:10 pm

    What if I told you as of the new game there are now less mario games with timed inputs in them then ones with them.

    Feel absolute despair yet

  19. LurkerJK
    March 12, 2016 at 9:22 am

    I was thinking the same thing =)

  20. LurkerJK
    March 12, 2016 at 9:26 am

    Oh man, what an expectation roller-coaster, i was into it until the gameplay started, yuck

  21. fnd
    March 12, 2016 at 2:00 pm

    I like the gwent minigame in Witcher 3

  22. fnd
    March 12, 2016 at 2:01 pm

    the game footage reminds me of Diablo 1, which may be too oldschool for some.

  23. dogmentation
    March 12, 2016 at 3:23 pm

    Ehh, card minigames are totally different things. Gwent, Triple Triad, Caravan, those don’t actually affect your character, and they aren’t integrated into the core gameplay mechanics, like in MMBN, PSO3, or Yggdra Union, which is where I object.

  24. LurkerJK
    March 12, 2016 at 5:30 pm

    yeah before the spell effects and cards started it definitely had this diablo 1, first area feel

  25. Thing Trunk
    Thing Trunk
    March 13, 2016 at 11:23 am

    Yes, yes it is. We build a lot of gameplay around that movement. You have many cards that affect the path and you must watch out not to get surrounded. What’s best you can focus on combat not on walking. I could ramble on how fun it is to freeze group of monsters in front of you, teleport behind them and drop a meteor on their heads without having to steer your character in the process. But you get the point.

  26. Thing Trunk
    Thing Trunk
    March 13, 2016 at 11:27 am

    The oldschool is what we are aiming at. The game is designed as a tribute to the classics of the hack and slash genre and Diablo 1 started it all. It has a special place in our hearts forever.

    And HEY! I made those sparkly particle effects and don’t you say a bad word about them! ;-)

  27. Thing Trunk
    Thing Trunk
    March 13, 2016 at 11:28 am

    Thanks for a kind word, we hope you willl find execution not lacking ;-)

  28. Thing Trunk
    Thing Trunk
    March 13, 2016 at 11:29 am

    We will. And before that we will cook some gameplay video.

  29. Thing Trunk
    Thing Trunk
    March 13, 2016 at 11:30 am

    Awww crap. We didn’t even had chance to finish working on the game before you tossed it.

  30. Thing Trunk
    Thing Trunk
    March 13, 2016 at 11:38 am

    Not needless if they are an integral part of the design. Think about it – the paper world inside a pop-up book. Skills, items and spells are paper cards. It’s coming together nicely.

    I know that the card thing is VERY overused lately but hey, we started working on the game 4 years ago when it was revolutionary :D

    By the way, the card system in the game world is a new thing too. It replaced traditional items and spells and some characters complain about that a lot.

  31. Thing Trunk
    Thing Trunk
    March 13, 2016 at 11:40 am

    We are bringing that oldschool feeling of Diablo back. But with new mechanics and modern game design. That’s the crux of our project – to build a tribute to greatest games of our youth :-)

  32. dogmentation
    March 13, 2016 at 1:56 pm

    Sorry, not a fan of that new card smell.

  33. dogmentation
    March 13, 2016 at 1:58 pm

    Revolutionary? It was already a bad idea when Phantasy Star Online Episode III did the same thing over 10 years ago.

  34. Thing Trunk
    Thing Trunk
    March 13, 2016 at 3:49 pm

    Never had GameCube to play it. However reviewers seem to agree it was ok.

    But back to the topic – I’m not saying that cards were a new concept – Romans used to play cards too. But hack and slash with card-based gameplay (not cards simply present but cards representing items, skills and spells as an integral part of the world and storytelling) was new.

    Anyway – there will be free demo so you will be able to check it out to make sure it sucks just as much as you hoped ;-)

  35. Thing Trunk
    Thing Trunk
    March 13, 2016 at 3:50 pm

    Sweet, knew we will get into that trashcan. I consider that our first fanart :D

    BTW, you just said it’s a new card smell when moments before you said it’s and old musty smell at least 10 years old. You like arguing just for the sake of arguing, don’t you? I sense an engineering streak in you :-)

  36. dogmentation
    March 13, 2016 at 3:57 pm


    “The government of Pioneer 2 also hopes to exploit “the germ”, a mysterious substance discovered on the planet, which they use to power the newly developed “C.A.R.D. technology”, which is used to store items such as weapons as cards and allow them to be used much more efficiently.”

    “During their turn, players can activate cards from their deck to equip weapons, summon monsters and attack the enemy. Cards can also be used during the opponent’s turn to defend against their attacks.”

    Oh yeah, totally new concept.
    I look forward to my imminent disappointment. ;-)

  37. Thing Trunk
    Thing Trunk
    March 13, 2016 at 4:53 pm

    Good. Best case scenario you will eat your own hat, worst case scenario you will be disappointed. We can live with both outcomes (although we, of course, would prefer the first one :D).

  38. LurkerJK
    March 13, 2016 at 9:45 pm

    they are too heavy handed, build up to them :p

    Diablo 1 didnt have big showy spells until mid-late level, the initial spells were subdued

    im sorry but i really really dislike sparklies that take over the screen and dont let you see anything

  39. Thing Trunk
    Thing Trunk
    March 14, 2016 at 4:04 am

    The ones at 1:30 are teleportation effects that got out of control during testing. We thought they looked like fun so we recorded them. But during regular game, you won’t see half of the monsters teleporting all the time :D

    And regarding Diablo successors – that’s exactly our sentiment.

  40. InfectedAI
    March 17, 2016 at 10:44 pm

    I hope you pull it off as it’s a risky proposition that could easily drive people away. I’ll be looking forward to see how well it’s executed as it could be interesting from your description.