Warning This fiction contains:
  • Sexual Content

Dungeon: A place full of monsters, traps, treasure, and death. Those are the Great Dungeons, with unplumbed depths below the roots of the mountains.

That's not for me.

Dungeon: A place of rape, torture, and death, to control and corral enemies and slaves. These are the Red Cores, from which the mage-kings draw their power.

That's also not for me.

I don't like monsters. I don't want adventurers. I want to stay well away from enemies and slaves.

Fortunately, there are alternatives...

(Includes explicit and consensual sexual content. Chapters containing such will be marked.)

Weekly release schedule.  Chapter releases start on Fridays, 5PM EST.

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Table of Contents
Chapter Name Release Date
Day 2 ago
Day 3 ago
Day 4 ago
Day 5 ago
Day 12 ago
Day 20 (Explicit) ago
Day 21 ago
Day 25 ago
Day 42 ago
Day 55 (Explicit) ago
Day 56 ago
Day 56 - Shayma ago
Day 59 ago
Day 61 - Shayma ago
Day 70 ago
Day 71 ago
Day 72 ago
Day 73 - Ansae ago
Day 75 ago
Day 76 - Shayma ago
Day 76 ago
Day 77 - Shayma (Explicit) ago
Day 77 ago
Day 78 - Shayma ago
Day 79 - Blue ago
Day 79 - Iniri ago
Day 79 - Ansae ago
Day 80 - Blue ago
Day 85 - Shayma ago
Day 85 - Blue ago
Day 90 - Shayma (Explicit) ago
Day 91 - Blue ago
Day 91 - Taelah ago
Day 94 - Blue ago
Day 94 - Dyen ago
Day 95 - Blue ago
Day 97 - Blue ago
Day 98 - Annit ago
Interlude - Ansae Contemplates ago
Day 99 - Shayma ago
Day 99 - Blue (Explicit) ago
Day 99 - Ansae ago
Day 100 - Annit ago
Day 100 - Blue ago
Day 100 - Iniri ago
Day 107 - Blue ago
Day 107 - Keri ago
Day 107 - Iniri ago
Interlude - Taelah Catalogues Blue (and other stuff happens) ago
Day 108 - Blue ago
Day 108 - Ansae (Rashomon) ago
Day 108 - Annit ago
Day 109 - Blue ago
Day 109 - Iniri (Explicit) ago
Day 110 - Shayma ago
Day 111 - Blue ago
Day 112 - Annit ago
Day 113 - Blue ago
Day 114 - Blue ago
Day 114 - Shayma ago
Day 114 - Taelah ago
Day 115 - Blue ago
Day 115 - Ansae ago
Day 116 - Blue ago
Day 116 - Iniri ago
Day 117 - Blue ago
Day 117 - Harold ago
Day 117 - Blue, Part Two (Explicit) ago
Day 120 - Shayma ago
Day 121 - Blue ago
Day 121 - Keri ago
Day 122 - Blue ago
Day 122 - Ansae ago
Day 123 - Blue ago
Day 124 - Taelah ago
Day 128 - Shayma ago
Day 128 - Blue ago
Day 129 - Shayma (Part One) ago
Day 129 - Giorn ago
Day 129 - Shayma (Part Two) ago
Day 129 - Blue ago
Day 130 - Iniri ago
Day 130 - Blue ago
Day 131 - Iniri (Explicit) ago
Day 131 - Blue ago
Day 131 - Iniri ago
Day 131 - Annit ago
Day 132 - Blue ago
Day 133 - Blue ago
Day 134 - Sienne ago
Day 134 - Blue ago
Day 134 - Taelah ago
Day 134 - Iniri ago
Year 864, Day 138 - Tarnil ago
Day 134 - Iniri (Part Two) ago
Day 135 - Blue ago
End of Book One and Character AMA (not a chapter) ago
Day 136 – Iniri ago
Character AMA Answers ago
Start of Book 2 | Day 136 - Blue ago
Day 136 – Harus ago
Day 137 - Ansae ago
Day 137 – Blue ago
Day 137 – Keri ago
Day 138 - Blue ago
Day 138 - Taelah (Explicit) ago
Day 141 - Blue ago
Day 142 - One-Eye-Green ago
Day 142 - Blue ago
Day 143 - Iniri ago
Day 144 - Blue ago
Day 155 - Shayma ago
Day 156 - Blue ago
Day 161 - Iniri ago
Day 162 - Blue ago
Day 163 - Blue ago
Day 163 - Annit ago
Interlude - Andis Reports ago
Day 164 - Blue ago
Day 165 - Iniri ago
Day 165 - Blue ago
Day 167 - Shayma ago
Day 167 - Blue (Explicit) ago
Day 170 - Blue ago
Day 171 - Blue ago
Day 171 - Iniri ago
Day 171 - Shayma ago
Day 172 - The Hurricane ago
Day 173 - Blue (Part One) ago
Day 173 - Blue (Part Two) ago
Day 174 - Blue ago
Day 174 - Taelah ago
Day 174 - One-Eye-Green ago
Day 175 - Blue ago
Day 176 - Blue ago
Day 176 - Iniri ago
Day 177 - Ansae ago
Day 177 - Blue ago
Day 177 - Blue (Explicit) ago
Day 177 - Blue, Continued ago
Day 178 - Uilei-nktik ago
Day 179 - Piping Hot Pies ago
Day 180 - Blue ago
Day 183 - Blue ago
Day 183 - Wright ago
Want to Commission new cover / more art (Not a chapter) ago
Day 184 - Keri ago
Day 184 - Piping Hot Pies ago
Day 184 - Taelah ago
Day 185 - Blue ago
Day 186 - Ansae ago
Day 187 - Blue ago
Day 187 - Shayma ago
Day 188 - Blue ago
Day 188 - Iniri ago
Day 189 - Sienne ago
Day 189 - Blue ago
Day 192 - Blue ago
Day 194 - One-Eye-Green ago
Day 196 - Blue ago
Day 199 - Blue ago
Day 202 - Blue ago
Day 204 - Iniri ago
Day 204 - Blue ago
Author's Notes - End of Book 2 / Character Q&A ago
Book 2/3 Intermission - Character Q&A ago
Book 3 | Chapter 1A: Day 204 – Flight-Alpha Tlulipechua ago
Chapter 1B: Day 204 – Blue ago
Chapter 2: Day 206 – Blue ago
Chapter 3A: Day 207 – Annit ago
Chapter 3B: Day 207 – Shayma ago
Chapter 4A: Day 207 – Girul Ell ago
Chapter 4B: Day 208 – Blue ago
Chapter 5A: Day 209 - Blue ago
Chapter 5B: Day 209 – Taelah ago

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Consentacles + Dungeon = good

In a darker take on the Dungeon LitRPG genre, the author posits a setting where Dungeons are a lot more organic than usual; rather like giant hollow sedentary magical tentacle monsters. Another novel addition is the Depletion mechanic, that lets Dungeons steal lifeforce from nearby creatures, permanently weakening them in the process. Oh, and in keeping with the 'organic' theme, Dungeon monsters aren't created from thin air, but must be gestated in a host.
By implication, the typical Dungeon in the setting is a creeping engine of destruction, sluggishly ravaging the countryside around it for building material, lifeforce and unwilling hosts - while under the control of a ruthless Mage King that feeds it slaves in exchange for magical and military power. 

So far, so evil.

If the background is dark, the foreground is a bit lighter, though. 

This is the thrilling tale of the MC - presumably a reincarnee from Earth - growing to be the nicest Dungeon around, taking in refugees from the rest of the crapsack setting, and, presumably, starting to make some badly-needed changes to the world. 
This is also the thrilling tale of beautiful women finding themselves in situations where it makes sense to volunteer for a torrid time with twenty-or-so tentacles, something that just so happens to align nicely with their secret desires. (Or so I extrapolate.)

The story is told well, and is interesting and engaging - with the occasional explicit scene, clearly marked in the chapter title. As for the style, my only complaint is that occasionally setting and character descriptions are a bit too bare-bones. 

The grammar is excellent, averaging less than one typo per chapter, with only the kind of mild grammar issues that makes me go 'eh, not really worth commenting on'.

The characterization lags behind a bit, simply because not many characters have been introduced yet, and there hasn't been much time to develop them. I'm willing to take it on faith, though, that future chapters will catch up on that front. 

It's early days yet, and it remains to be seen whether the story will be an epic tale of a world in change, or just a framing device to marry the Dungeon construction to the smut scenes with a minimum of fuss - but 23 chapters in, I'm optimistic.


One of those stories where you March along devouring chapter after chapter. Then the most terrible of things happens.. The next chapter button is greyed out.


Never thought I'd like a tentacle dungeon story.

Well written story, the world is interesting, and incredibly, the tentacle porn didn't turn me off.

 Let me start by saying that this story had everything to end up in the garbage bin for me. Rapey tentacle dungeon could've ended up terribly, but it didn't. Thats what surprised me.It starts off pretty generic as your dungeon stories go, but it was well written and concise thus I kept reading. The first "explicit" chapter was the breaking point for either dropping or continuing it.

I wasn't disapointed, not being a huge fan of tentacles I was pleasently surprised by how "good" the explicit chapters were. Specially because mr.author took the "willing shared pleasure" instead of the "rapey vore" route (which was what made me drop Everybody loves large chests).

So far the story was to my liking, the background story is interesting, the Sex scenes were well written and not "sanity decreasing", and although the characters haven't been fleshed out yet (well except for fox girl, we know plenty about her "flesh"), the story is good and I'm interested to see whete the author will take it.


Fresh take on a dungeon story, well-written sex

Reviewed at: Day 176 - Blue

Good start so far for this dungeon story which does things in a different way.

I really like how the author has done the world of this story, its a unique take on the otherwise stale dungeon genre.

The world is a dark world with mage-kings ruling all through the power of their red dungeon cores, commiting dark acts in the pursuit of power . There are the great dungeons, with their incredible size, unclaimed by other powers, being a danger to all who delve in their depths. The denizen of this world suffer from the power of the dungeons and the mage-kings behind them, with them losing their strength due to the dungeons draining them and filling their depletion.

In this dark world the MC is reincarnated as a dungeon core, and through a series of events, he becomes a blue core, the implications of what he is are massive, and could bring a change to the world and all its denizens.

The author has gotten a good balance between plot, and explicit scenes, even if i personally wish there were more of such scenes in the story! The acts are quite well described with it being a different type of sexual scenes. This is not simply sex just because, it does matter to the overall story, with some of the important powers of the MC revolving around sex, i cant go too far into this, since that would be some spoilers, more interesting to find out while reading the story, and the scenes are worth it anyways!

I have to agree with another reviewer that the characters while being good so far, still have to be developed much more, but i guess that will be solved over time as the author writes more of the story.

Consistent grammar in this story, it wont be a problem at all for the majority of readers.

Im interested in just where this story can go, it has so much potentional because it does it own take on the dungeon genre. I can already recommend people to read it, not only for the dungeon setting, but also for the explicit scenes (with added tentacles, if you need any more reasons to read it)



Almost non-existent typos, wonderful storytelling and narration, depictive scenes, interesting sex scenes and a unique take on dungeons in fantasy worlds.


Oh and did I mention the update speed? Sweet.


Very good story so far, not much is known about the world at large, yet. Definitely a story I am happy to recommend to atleast give a try.


Besides that it's a fairly interesting dungeon core story, too early to tell where it'll end up but there's plenty in place already to lead to something good with a few wholly unique world mechanics already introduced. 
-edit- with the most recent chapters it is clear that a lot of thought has been put into things, I stand by my 5* rating and can't wait to see where things go.


Runs out of steam

Reviewed at: Day 163 - Blue

It's a fine dungeon core story with some (skippable and labled) erotic chapters sprinkled in. Unfortunately it runs out of steam after the Tor Kot battle and further chapters have become increasingly difficult to get through. Blue Core seems to have fallen into the same trap a lot of these dungeon core stories do which is that when they are focused and smaller scale they can be quite compelling, but as they grow larger and introduce more characters they become increasingly unfocused and lose their momentum.

The bones of this story are good. The harem characters are more diverse and interesting than usual. The antagonists are far better than usually found in dungeon core stories and the hints that the mage kings are actively fighting an existential threat make for what could be a very interesting dynamic later. If only this stuff wasn't burried underneath so much content that doesn't seem to be driving the story at all.

I think the story could be revitlized by liberal self editing. The main problem is just that there is too much inconsequential content in each chapter. Trim the fat, tighten up the plotting, and work to start building that momentum again.

Andrew Meyers

Compelling, well thought out, detailed, yet with an excellent pace to keep your interest. This story is one of my favourite dungeon core fictions now (and I've read almost all of them). If you like dungeon cores and magic, then you will love this story. Note about the rare "Explicit" parts: though brief, they're tasteful and high quality, fully consensual, with no negative outcomes for either party, with actual impact on the plot.


Overall: 5/5 for addictive storytelling. I can't wait for the next week's chapters!

Style: Great pacing, insightful POV changes (not too rapid, not too stagnant either).

Story: Interesting backstory, despite MC not having much of a past. There is a full world in the fiction that feels alive and interacts behind the scenes.

Grammar: Nearly perfect, only a minor typo once or twice a chapter, with appropriate punctuation usage in nearly all cases.

Character: Each character seems to have a proper feel of a backstory, with internal wants and needs, unique personal issues, and individual agendas. I do not get the feeling that any of them are 2-bit villans other than the BBEG the mage-kings (and their direct subordinates).


surprisingly worthwhile so far. not smutty, either

Reviewed at: Day 196 - Blue

As of chapter 36 or so, there were only two chapters with heavy sex scenes, and since it was all compacted together in those two scenes, it was quite easy to skip over without really missing plot value.

It's my first "dungeon core" story. The first few chapters are excruciatingly boring, IMO. But later, the characters get fleshed out and the interest and tension builds.

It's slower paced than I'd like, and there's a bit of an excess of internal thinkering, but it's survivable with enough caffeine and restedness, or an infinite supply of cocaine...which I may or may not enjoy multi-month binges of.

It's certainly not my favorite story, but it's enjoyable and if you're a fan of LitRPGs and you're bored of other ones then I'd recommend considering giving this one a shot.

edit as of "day 206": IMO writing quality has improved. worth reading, even when close to sober. 4.5 stars for current writing quality, 3.5 stars for earlier writing quality. 4 star total. As such, it has earned some $$ from me. Thanks, author.


blue core a downward spiral

Reviewed at: Day 199 - Blue

The most recent chapters have been a disapointment (day 190-ish onward) much of the initial appeal of the story was in world expoloration and how it worked and blue comming to understand it. Now it seems to be filled with a lot of CYIKAC, bringing Ideas from our world to the fantacy one and presenting them as new then gushing over them is not intresting, it is filler. 

when I started reading this I would be constantly checking if a new chapter came out, now I can barely make myself read it, hopping for something intresting to happen.