Dungeon I/O (⚒ Crafting ⚒)
by zryfurn
- Profanity
- Sexual Content
A young engineer with photographic memory dies after choking on a pretzel. He is reincarnated in a fantasy world as a dungeon core. Having near infinite knowledge from Earth, and infinitesimal common sense, he begins to shape his dungeon into the ultimate factory of resources. Collect all the things! Automate all the systems! Even adventurers can be farmed! And if a few world governments collapse in the process, well, it’s all for the sake of science!
This story is like if Factorio was about dungeons, played by someone with ADHD.
Warning, lots of numbers and spreadsheets. Arithmophobes beware!
- Overall Score
- Style Score
- Story Score
- Grammar Score
- Character Score
- Total Views :
- 171,140
- Average Views :
- 5,348
- Followers :
- 1,671
- Favorites :
- 305
- Ratings :
- 342
- Pages :
- 172
Leave a review

I encourage you to try it
Reviewed at: Chapter 11: Craft 🛠️ Acetic Acid
edit: There have been some changes to the earlier chapters (in part based on my suggestions), but I have decided to leave my review as it was, and just include this warning. I quickly looked through most of those chapters, and I think it's still mostly accurate. Also, while I point out some of my complaints about the story in the first part, these are not major problems in any way.
Most of my issues about this story can be summarized with "why?"
Why does the MC get to choose how he reincarnates? Please don't tell me every single person can choose to become a Hero after they die...
Why does he get such an absurd amount of information? Not just about dungeon cores, the system, but also the world he was reincarnated into (which he couldn't choose).
Why does he have a human body if he is a dungeon core? It would be more logical to call him a Dungeon Lord, instead of a core.
Why does the system store materials as elements, if he can't materialize them as such? All in all, the whole system seems needlessly convoluted. If at least he could select compounds to materialize, instead of just materializing an element that becomes a predetermined compound.
Why do slimes work according to Earth science? Seriously why? How the heck would he know the molecular composition of magic slimes?
Despite all my complaints, this story is good. It has an interesting premise, but I think it's somewhat lacking in execution. Good writing and grammar. Nothing much to say about that.
The story is very slow so far. Mostly because until now, we just followed the MC as he tested out (parts of) his dungeon system to create things. I enjoyed it, but if you want exciting action, you should probably look elsewhere.
Franklin, the main character is, in my opinion both the greatest strength, and the biggest weakness of this story. Franlky, I dislike him. The photographic memory genius with near unlimited knowledge is the premise of the story, and he works well within it. I think he is a well written character, it's just... I find him annoying.
Not to mention that his "photographic memory" is used kind of like a cheat. And by that, I don't mean just the knowledge from Earth. For some reason he also has knowledge about his new world memorized.
All in all, this is a good story, that just isn't for everyone. I encourage you to try it.

Lots of detail, perhaps too much detail
Reviewed at: Chapter 10: First Craft 🛠️ Create & Imbue
Now I love a good dungeon story as much as the next person, and usually the more detail a dungeon story has the better it is as a dungeon is essencially a god and should know about how it does its stuff. However, Dungeon I/O seems to have the problem of have the "problem" of diving too much into the detail.
Now not the "air quotes" there as this isn't really a problem of such but it can and likely will put off some readers. I think this is expressed in how slow the story seems as 10 chapers in and it seems the protag is still only just starting to understand the system, add into how he's not the typicall dungeon with at least a small tribe of creatures like other story have, and some people may get bored. Again not a problem as in the future once the ball starts rolling and the protag has the resources and knoledge to really start experimenting it may become closer to other good dungeon novels in a way or have a spark of its own. But till then I'll likely just sit and wait.
P.S. I understand its progressing this way because of how the protag is a mad fellow who wants to understand everything in detail, and props for the author for going into all that extra detail as people do like that stuff. just not for me right now.

Decent
Reviewed at: Chapter 28: The Wilderness 🧭 Enter Mineshaft
It's nice. I like the details.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Proin at mattis magna, a congue libero. Duis commodo tincidunt tincidunt. Aenean viverra ac eros in accumsan. In hac habitasse platea dictumst. Donec non eros posuere, rutrum ante at, mollis tellus. Sed imperdiet sodales pretium. Pellentesque non dolor bibendum, venenatis metus eu.

A fun read! (at least for me)
Reviewed at: Author’s Note: One Week Anniversary, Thoughts and Polls
This is a very science focused story with exploiting a badly written program thrown in. Story is sounding great so far! I love looking at all the numbers so keep it up. You could add a "Debug" mode in the system which would display the system data more raw. (Hey! Gods also have to debug [even if they don't they should at least have a way to do data gathering])
The only issue (at least for me) is the premise (implied by poll and tag) that a harem will appear.
(Resent to be perfectly fine)
[WHY NO EDIT BUTTONS ROYALROAD?!]

Good but short the chapters are killing me
Reviewed at: Chapter 5: The Wilderness 🧭 Enter Swamplands
This is a great start. Im very interesed in where its going to go. BUT the chapters a very VERY short. So my recomendation for now "ch 5" is to favorite the book then wait till it reaches 20-30 chapters before reading. Or you'll be left wanting like me.

A little heavy on math but whatev's
Reviewed at: Chapter 23: Industrialization 🏭 Bellows
I haven't read a dungeon story for a while so I'm probably a bit resistant to their tropes for now. Even still I feel this one has a rather unique take on the whole thing as the core feels a lot less like some sort of tower defense manager and more like some weirdly bound-in-place semi-immortal reincarnator.
Overall the vibe and character give off feelings similar to Dr. Stone and maybe a hint of How To Tame Your Princess.
Pacing is also quite good as the story doesn't get bogged down focusing on one thing at a time. For example while the MC is off grinding out data about slime death a resource counts we get a side chapter following the first character to(/in) discover(ing) the dungeon.

Maybe when there is really a story
Reviewed at: Chapter 25: Industrialization 🏭 First Tool
First sorry for my poor english, I write a lot less than I read.
The info dump is so massive that sometime I have the impression of reading an author paid by lines (or words) But I found the text well written, with good grammar and vocabulary.
The story is for now divised in two type chapter. World building chapter with new characters and very littles informations, and mc's chapters which are in fact info dump on science where an engineer try to build modern process with a powerful system but do not try to use correctly the "System". It's like the first thing the mc do with his new car it's to use the fuel tank to measure a volume.
There's for now no direction to the story and the pacing is very slow. This two things make the story rather boring for me.
The mc have so little common sense that he should be non functionnal in society, have edeitic memory (an excuse for a lot of disparate knownledge) and apparently no social skill.
And the other characters are for now with very little developpement so nothing to say about them.
I will probably retry this story later with more chaptes published. But I can't recommend it now when there so much to read elsewhere.

SHORT CHAPS, nice read tho so do check it out
Reviewed at: Chapter 24: Industrialization 🏭 Bellows
... it is exactly how my title says.... its a nice read but the chapters are to short. put it in your follow list and check it every 10 or 15 chaps. or if the author makes the chaps longer.. its about an engineer/chemist (trust me im an engineer) that choices to be a dungeon instead of an hero

I like it so far
Reviewed at: Chapter 24: Industrialization 🏭 Bellows
The story is pretty fun so far. I love the math and science with it. I don't always read all of the really descriptive bits, but when I want to I can which is nice. I'm curious to see if the writer sticks with this style past the point of mideval technology, when things get much more complex. After I read the description I'm imaging him walking through a big factory just transmuting massive quantities of iron or gold or silicon, and then having assembly lines of goblins and traditional monsters making stuff out of it. Maybe the dragons just use their firebreath because it's more efficent to feed a dragon than wait for trees to grow to make charcoal or something like that.
The only negatives are that it could use a little bit of editing. I don't remeber finding any misspelled words, but a couple sentences here and there need reworked. Also the chapters are really short. It seems like you're trying to have one main idea per chapter so I kinda understand why they're short, but I find that reading one larger chapter is generally easier than 2 or 3 smaller ones. That's also just a personal preference though.
Overall it's really good. A little bit more editing, fleshing out the characters (which is happening slowly like it should), and getting a little more content and I think this'll be great. 9/10, keep up the good work.

Early, but it has my interest
Reviewed at: Author’s Note: Two Weeks In Review
I am enjoying the story so far. Writing is good, and I'm curious to see where this is going. My big suggestion is it might be better if I had a clearer idea what the main character's goals are, or if he even had any besides messing around with elements a d random stuff? I don't feel like I really get what he's trying to do or why? If it's just scientific curiosity or something that's fine but his motive just isn't clear to me.
Otherwise like I said I'm enjoying it, and while nothing has really happened yet, there's enough pieces in motion that mlle me interested in where the story is going, so I will keep reading it.