Milton, Brint, Whisp, and the Guardian Guild are back in the conclusion to the Station Cores series!
After the events that previously occurred near the northeastern border of the Kingdom, Milton has a lot of work to do. Not only does the Station Core have to hide his dungeon from the rampaging hordes originating from the Quizard Mountains, but he has to find somewhere to put thousands of children who are heading towards his dungeon for safety.
If that wasn’t bad enough, Milton also has to find a place for millions of other citizens to live; even though they don’t even know who or what the Station Core is, they are counting on him to keep them safe. With that safety, though, comes a chance at something that they never thought they’d have: power…and revenge.
Milton isn’t just going to build more habitations for them to stay comfortably in his new Underground Kingdom; no, he has a proposition for them that they would be fools to ignore. The acquisition of new abilities means that the need for an immediate education on how to control those new powers is paramount. Strangely enough, it’s time for some new students to enroll in Milton’s new Guardian University.
But will they be able to learn well and fast enough to get the revenge they seek? In the end, they’ll have to – especially if they want to take on and defeat the army fielded by…the other Core.
Contains LitRPG and GameLit elements such as level progression and experience, optional tables, no harems, and a heavy Dungeon Core emphasis.
Note: The optional stat tables tend to skew the percentages toward the back of the book. The locations can be a tad deceptive; while this book is 124,000 words, stat tables comprise less than 6% of that total word count.
Maybe this Five book Series is a prologue in a grander story arc. The Station Core, formerly the human known as Milton Fredericks, has spent decades gathering resources, and surprisingly, allies to help him defend and repair his severely damaged machinery. His ultimate goal, since waking on an unknown world is to build a space ship and return to Collective Space -- if the Collective still exists, he can take his intended place as a defender of The Collective's stellar systems. If The Collective has fallen to the Heliothropes, his future is less . . . defined.
It is that future, which could make an exciting new Series of Station Core novels! Which I, for one would love to read. Would it be a story of guerilla warfare waged in the steaming jungles, arid deserts, verdant plains, and crushing ocean depths of hundreds of worlds? Or would it be a grand Space Opera filled with the dog fights of small fighter craft and the silent explosions of ships in the void? Maybe both, or something altogether different?
This book (and Series) will likely appeal to fans of the Fantasy, LitRPG, Dungeon Core, Science Fiction, and Military Fiction genres, as well as those who enjoy playing or running RPGs.
I hate trying to write reviews because there are really only pass/fail results for me. Did I make it all the way through? Yes? 5 stars. No? There would be nothing here to read. In all fairness, if an author holds my attention from page one to the end, they’ve done their job. Anything less than 5 stars is petty criticism from someone incapable of even doing the job let alone doing a better one.
So in respect for the author and their work, I am going to start pasting this along with a generic review I found somewhere. “This was a fun book. I am glad that I read it. You should try it too.”
While we have now completed the arc, I do think that this book was weaker than the previous ones.
The use of flash forwards was necessary, but it did break the flow of the story enough that it kept me from devouring the book like I've done with previous ones.
I understand why these were there, but I'm not fulfilled with how we got there, but I am glad that we'll see new stories in the same universe.
Epic conclusion to the land based series. The quality level really went up in this book (and series compared to his other works). Can’t wait to see the sequel series and how it ties into crafting dungeon. Hopefully will see more space stuff
As the final book in a five book series, this one obviously isn't a suitable point for new readers to be joining in, but the series as a whole is very enjoyable and if you haven't already you should check out the previous books in it first.
Due to the nature of the events at the end of book four, this one again sees some minor time skipping to ensure the story does not get bogged down into some kind of training montage as the author heads towards the conclusion of the series. While obviously wanting to avoid specifics, he manages to produce a strong conclusion to this book and the series with some interesting callbacks to the earliest parts of it too.
The narration for the book was once again a good one, helping to enhance the enjoyment of the book with a suitably distinctive range of tones for the main cast to help the reader.
Overall, an enjoyable end to the series, although hopefully not to the station core universe since there is obviously room for more stories there.
[Note - I was given this free review copy audiobook at my request and have voluntarily left this review.]
I really did like the series as a whole, but this final book was very, VERY, heavy on the stats and power leveling. The last quarter of the book is the actual final battle, but the rest is building the city inhabitants from low to uber levels as quickly as possible. Most of that is done in info dumps. I still enjoyed it. There was a lot of world building, and fleshing out of some of the systems. You also got to see a bit of the lives of some of the newer people, and there was a brief moment of a moral dilemma that sort of paid off at the end. Plus... it completes the series. Without it the series wouldn't feel complete.
Finally, this is the dungeon book I wanted to read. The beginning was going great, the story was on point. The characters were written well. It was the start of the final battle where it all went south. Conflict still needs to be balanced better and the ending just happened out of nowhere. The story flow was great at the start, shit by the end.
The end of a long series is often a bittersweet thing. Especially when you can see the improvements the another has made over the course of such a long set. J Brooks is not a newbie author by any stretch, but it’s great to read his books. I think I’ll pick up the next Milton series and get started now!
A Crowd-Pleasing Climax to the Underground Kingdom Saga (4.5/5 Stars) Listen, if you’ve made it through four books of Milton the Station Core building his underground empire, you are NOT going to DNF this finale. The Other Core by Jonathan Brooks delivers exactly what the series has been building toward: a massive, strategic, and surprisingly emotional conclusion to the land-based arc of the Station Cores series. Brooks really hit his stride in the later books, and this final installment brings together years of world-building, character development, and escalating stakes into a package that will satisfy dedicated fans. Just be ready for a story that trades the intimate survival horror of Book 1 for epic, kingdom-scale warfare.
Key Themes The Burden of Leadership & Community: Milton’s journey completes its evolution from self-preservation to stewardship. Here, he’s responsible for millions of displaced citizens who don't even know what he is. The theme explores what it truly means to be a protector, moving beyond building traps to building a functioning, hopeful society—his "Underground Kingdom".
Empowerment & Revenge: Brooks cleverly ties safety to strength. Milton’s proposition to the refugees isn’t just shelter; it’s the power to fight back. The creation of the "Guardian University" is a brilliant LitRPG twist, turning victims into an army through education and empowerment, making their desire for revenge a tangible, strategic goal.
Escalation to Its Logical Extreme: The series' constant scaling culminates in a direct Core-vs-Core conflict. This isn't just about defeating monsters anymore; it's a clash of systems, philosophies, and raw cosmic power. The theme asks: what happens when the ultimate defensive weapon meets its mirrored counterpart?
Character Analysis The core trio—Milton, Brint, and Whisp—operate like a well-oiled machine by now. Milton fully embodies the strategic commander, using his gamer mind for large-scale logistics and war planning. Brint and Whisp shine as his executive officers, seamlessly translating his plans into action.
The most significant development, however, is in the cast of thousands. While we don’t get deep dives into every citizen, Brooks successfully makes the newly empowered Proctans feel like a collective character—a fledgling nation finding its strength and unity through shared trauma and purpose. The "other Core" itself serves as a fascinating antagonist, a dark reflection that raises the stakes perfectly.
Writing Style & Pacing This is where the book gets its most mixed, but fair, criticism. Brooks employs time-skips and flash-forwards to avoid a tedious, multi-year training montage. This is a smart choice for narrative momentum, allowing us to jump to the good parts, but some readers noted it can slightly disrupt the flow of immediate tension.
The prose remains clear and functional, excelling in describing complex power systems and large-scale battle tactics. As a pure conclusion, the pacing is relentless in the back half, building to a final confrontation that delivers on the series' long-built promises.
A Note for LitRPG Purists: The optional stat tables are again placed at the end (comprising less than 6% of the word count), keeping the main story clean. Audiobook listeners can access a separate PDF.
What I Liked/Disliked Liked:
A Truly Satisfying Payoff: Loose ends from the entire series are tied up, and the final battle is the epic spectacle you’ve been waiting for.
The "Guardian University" Concept: A fantastic and logical in-world way to rapidly power-level characters without it feeling cheap.
Series-Wide Character Arc: Seeing Milton’s journey from a lonely core to the heart of a kingdom is immensely rewarding.
A Perfect Setup for More: The ending strongly hints at a grander cosmic saga (hello, Heliothropes!), making this feel like a triumphant end to "Book 1" of a much larger story.
Disliked:
The Scale Can Feel Detached: As one series review pointed out, when battles involve millions, it’s sometimes hard to feel connected to the individual stakes.
The Necessity of Time-Jumps: While needed, the narrative hand-wave to accelerate training can feel a bit abrupt.
Absolutely NOT a Standalone: This book would be completely impenetrable to a new reader.
Conclusion/Recommendation Final Verdict: 4.5 out of 5 stars. As a series finale, The Other Core does its job brilliantly. It’s a crowd-pleasing, epic, and emotionally resonant conclusion that proves Jonathan Brooks learned and improved with every book.
You should read this book if: You are a fan of the Station Cores series—this is a non-negotiable, must-read finale. It’s also perfect for LitRPG/Dungeon Core fans who love large-scale strategic warfare, kingdom-building, and stories where the underdog’s preparation pays off in a huge way.
Do NOT start the series here. This is the final chapter of a five-book saga. Start with The Station Core and power through its slower start; the journey is worth it.
Content Note: Contains large-scale fantasy violence.
The Other Core closes this chapter of Milton’s story with a definitive, explosive, and hopeful bang. It left me completely satisfied yet eager to see where Brooks takes this universe next. If you’ve invested in the Underground Kingdom, this finale will not let you down.
I really enjoyed this series. The combination of both litrpg and science fiction was rather enjoyable. I typically stick to fantasy. If you haven't read this author before, I highly recommend him.
Enjoyable final book in the series. Over the top battling and a bit melodramatic final raid wipe but good fun. Strategy was quirky but sound enough causing some major battles. Looking forward to continuation series of possible.
I just love this series. I couldn't put them down, with each one you will just want to see what happens next. This author has become one of my favorites.
A pretty decent ending to the series. The author says there's (possibly) more to come in offshoot series, and if so, I'd be happy to rea dthem, but my question is: after all this time, will the original purpose still be in tact? Guess that's one for the author to solve for us if he so chooses. But, satisfying ending. I think the story (especially about the huge catapillar type critter) could have been hadled better, but that is just my opinion, and in no way detracts from the story in the least. If you've liked any of the books in the series, or were just waiting for it to be completed before reading, now's your chance, go grab your copy and have at it.
Excellent series! Read my review of book 1 for full review
Definitly a must read if you like Sci-fi mixed with a little fantasy. For my full review of the series please see book 1.
Thanks for this wonderful series Jonathan, your writing skills are getting more and more polished. I really appreciate that you toned down the swearing and kept the sex PG rated so it didnt detract from the tale you were telling.
Excellent Series, Great addition with original and creative concepts
Volumes 1 and 2 were a little rough but 3 through 5 really came together, as the author hit his stride the story really came together and was really enjoyable, and an excellent series to read. This addition to the series opens up shower of follow on options. I really hope the author continues the story lines and continues with the high quality and enguaging style shown in this volume. The author takes the time in this story to the together and close several story arcs introduced in earlier volumes. But brings the majority on them together at the end of this volume so a reader could tell content stopping at the end with a sense of resolution, but also be eager to follow the story further into new series. The way the author resolves the story arc in this volume leaves open the opportunity to lead into multiple well formed and related but separate series. Looking forward to where the author goes from here. Very good series and excellent final addition to this series.😊
What a great conclusion to this part of Milton's journey! The difference in the level and types of challenges encountered throughout the series really kept me engaged and invested in how things turned out.
There is some profanity in this book, though quite rare compared to book one and it is generally used to highlight the current situation in some way.
It will be interesting to see how things progress for Millton in the future, as well as the Proctans who he will no longer be directly influencing. At least two more series in this 'universe' would be great!!
The series wrap up with the expected confrontation. It was high time, the setting was getting a bit crowded, and scaling dungeon core stories to the scale of an entire kingdom, with a million cast members doesn't really work. So, Milton keeps his promises, makes his ship and finally leaves the world he was stranded on 5 books ago. It's probably a bit rushed, but it works out reasonably well.
The series leaves an opening for a sequel/spin-off series, but that's not really necessary, in my opinion.
Although, I will fully admit to not liking how the series started. I must say that following it through to the end was an enjoyable experience. This final installment in the station course are ease sees our protagonist completing his long-term goals. With excellent action, great character development, and fantastic visual descriptions the novel is the excellent conclusion to a fairly decent series.
That was a damn fine book. The new POVs were a different touch but I have always been a huge fan of character development and dungeon building. This series was one of the better ones I have read in a long time. Truth be told I’m a little sad that it had to end.
Mistakes: I found none! Plot: With this being the end of the series arc, our MC has managed to beat the odds and leave the planet. I look forward to future adventures in this universe. Characters: The real pleasure was getting to see despicable characters redeem themselves. 10/10
Well designed, well written. For me the series bogged down a little in the fourth book (a fortress defense style), although that may have been more about my preferences than the writing. Picked up again and brought to a satisfying conclusion in this volume. Series is done, but with plenty of setup for a new series launched from this point.
I really hope more comes out of this series, because it was fascinating and entertaining as heck. I really enjoyed the passage of time and shifting perspectives. These were the first works I've read by this author, but I'll definitely be picking up some more!
This series provided me with hours of enjoyment. As the characters came to life each one provided a new and engaging peek into the story line. The reoccurring theme of caring and personal growth makes this series one of the few that show there is good in all beings.
I really enjoyed reading this series. I enjoyed the character development and especially the world building aspects. I look forward to reading future series with these characters.