Portal to Nova Roma Review: My Most Divided Verdict to Date

The honest framing up top

This is the most divided verdict I've written for this site, and I want the divide on the table before anything else.

Portal to Nova Roma is a solidly-executed LitRPG with a clear premise, a competent AI protagonist — Alexander — whose logic actually holds together, a well-realized setting, and a vocal fanbase whose enthusiasm isn't misplaced. The author is the same writer behind Jake's Magical Market, one of the bigger LitRPG / fantasy series of the past several years, and the craft floor is what you'd expect from that pedigree. The book has no plot holes I noticed. No character-breaking moments. No Mary Sue behavior. No shoehorned plot points. The writing holds up sentence by sentence.

I still DNF'd at roughly 75-80% of Book 1 — and would not personally spend an Audible credit on it.

The reason for that gap is the entire substance of this review. The book did almost nothing wrong. It just did a lot of things I, specifically, don't want a book to do at this stage in my reading. The recipe analogy: all the right ingredients are here, in the right proportions, and somehow the dish was bland for me. Another diner is going to call the same dish satisfying for exactly the reasons it lost me, and that diner isn't wrong.

So the review is split: what the book does well (objectively), what didn't work for me (subjectively), and then the clearest "who this is for / who it isn't" call I've made on the site to date.

What the book does well

Alexander's logic is internally consistent. This is the single most important craft point in the book, and the series shares it with Terminate the Other World! — an AI character cannot make decisions that aren't internally consistent with its programming and goals. You never finish a chapter feeling cheated. Alexander's choices always trace back to a coherent decision tree, and the absence of plot-convenient character breaks is real and rare.

The setting is well-realized. The alternate post-apocalyptic Constantinople / Eastern Roman world the series uses as its anchor is distinct, textured, and earns its place as more than a backdrop. The "Nova Roma" — New Rome — framing is doing real work: a once-imperial city now ravaged by monsters, with a level of historical specificity that the average LitRPG setting doesn't bother with. Readers who specifically respond to setting craft will find more on the page than the genre median.

Alexander's class and power development is interesting in concept. The melding of AI logic with magic-system mechanics is a real piece of design, and the moments when the book leans into it — Alexander analyzing magic through machine-learning frames, building hybrid capabilities — are the most distinctive things on the page.

When the story reaches civilization and opposing power structures, the scenes work. The glimpses of political intrigue, faction tension, and meaningful adversary work are real, and they're a sign of what the series could be foregrounding instead of the structural choices that lost me. Readers who hang on through the early sections appear to be rewarded with more of this.

The author's track record matters. J.R. Mathews wrote Jake's Magical Market, which has a real audience and a real run. The fanbase recommending Portal to Nova Roma isn't an unanchored vocal minority — it's readers of a successful prior series who liked the next thing the same author wrote. That's a meaningful endorsement signal independent of any one reviewer's call.

What didn't work for me

Three things, all subjective, all consistent with one another.

The grinding phase is too long. The first half of Book 1 is Alexander on his own — solo hunting, skill development, world exploration, methodical maximization of growth. Structurally I understand why it's there. Alexander needs to be established as competent, the world's threat hierarchy needs to be calibrated, his analytical approach to growth needs to be shown rather than told. None of those are unreasonable demands on Book 1 of a new series. I just found the execution slow enough that I was actively skipping ahead by the midpoint.

The mentor phase replicates the same pacing problem. Once Alexander reaches civilization, he latches onto a group of impoverished young adults and children to satisfy his emotional need for companionship and becomes their mentor-and-father figure. The relationship is appropriately handled — none of the failure modes the trope can have are present. But the structural shape of these chapters is the same shape as the early-Book-1 grinding chapters: slow, granular, building-up something step by step. After half a book of watching Alexander build himself, watching him then build the supporting cast through similar mechanics hit the same wall for me, with a supporting cast I hadn't connected to yet.

The supporting cast are all lesser versions of Alexander. This is the structural cost of an OP-AI protagonist with overwhelming advantages: every other character in the world is, by definition, working at a lower tier on the same axes. They rely on Alexander for equipment, knowledge, skills, and resources. The skill system doesn't give them paths to develop into something that genuinely differentiates them from him. The result: I couldn't get invested in any of them, because no one in the cast was offering anything Alexander didn't already have a better version of.

The relationship dynamic is structurally inert. Alexander seeks companionship but doesn't need any of it. Everyone around him needs him; he needs no one. Every relationship that should generate friction or interdependence resolves into Alexander providing and the supporting cast receiving. The asymmetry is consistent with the premise — an OP AI protagonist should have this dynamic — but the resulting relationships felt inert to me, with nothing pulling against Alexander's trajectory.

The underlying problem, in one sentence: after roughly a hundred LitRPG audiobooks I want more story per page and less granular grinding per page, and Portal to Nova Roma's patience with its setup didn't match my impatience as a reader at this stage. That's a real preference, but it is a preference, not a judgment about the book's quality.

Who this is for, and who it isn't

This is the section the review owes you most.

This series is for you if:

• You enjoy the "day in the life" rhythm of progression — every shelter built, every tier of monster fought, every skill upgraded, every tool found and refined. If the granular world-discovery pace is rewarding rather than tedious to you, this book is doing exactly what you want.
• You specifically value an OP AI / machine-intelligence protagonist whose logic doesn't break, and you don't mind the structural cost (supporting cast as a lower-tier ecosystem around a dominant central character).
• You're a fan of Jake's Magical Market and want more from the same author's voice in a different setting.
• You like alternate-history settings with real historical specificity. The Constantinople / Eastern Roman flavor here is doing actual work.
• You prefer ongoing series with a visible landing window over completed-arc commitments. Four books out, finale scheduled Summer 2026 — you can plausibly time entry now to finish Book 1 around the same time the series finishes its run.

If three or more of those apply to you, this is plausibly a high B-tier read for you specifically, and the verdict above doesn't apply — your taste profile is the one the book is written for.

This series is probably not for you if:

• You're 50+ LitRPG audiobooks deep and you've started weighting story-per-page heavily over granular grinding (this is where I am — and where this book lost me).
• You want supporting characters who can genuinely surprise Alexander or push against his trajectory. The premise structurally limits this here.
• You want the technology-vs-magic conflict from Terminate the Other World! in this book — the surface premise overlaps but the execution priorities are different (see the cross-comparison below).
• You're working from a one-credit-per-month Audible membership and you want every credit to land somewhere distinctive. The credit math is harder to clear for this book than for the catalogue's A-tier and S-tier entries.

If three or more of those apply to you, the verdict above is the call I'd actually make for you too — and Best LitRPG Audiobooks for Beginners below has the catalogue I'd point you at instead.

Portal to Nova Roma vs. Terminate the Other World!

These two reviews ran back-to-back in the queue and the premises are similar enough that the comparison is worth a paragraph. Both feature AI / machine-intelligence protagonists isekai'd into low-tech fantasy worlds. Both lean on the protagonist's machine logic as a structural strength. Both have a vocal fanbase.

The execution priorities are different. Terminate the Other World! foregrounds the technology-vs-magic tactical mismatch early — bolter, missiles, heavy weapons against unprepared fantasy enemies — and uses the resulting combat consequences as the engine that pulls the story forward. Portal to Nova Roma foregrounds setting craft, granular progression, and mentor-relationship building, with the AI-vs-fantasy-world dynamic mostly playing out in slower, more methodical ways than the Space Marine-in-fantasy hook would suggest.

If you read both of my reviews, the framing decision is roughly: do you want the premise of an AI in fantasy delivered through tactical mismatch and combat momentum (Terminate), or do you want it delivered through patient setting-and-character development (Nova Roma)? Both are legitimate executions of the same broad idea. The catalogue is better for having both. I personally land on the first; readers who land on the second will weight the verdicts on these two reviews exactly opposite to how I have.

The verdict

Not Worth the Credit — for me, at B-low tier, with the audience-split caveat carrying as much weight as the verdict line itself. The book does almost nothing wrong. It does a lot of things I personally don't want a book at this stage of my reading to spend its runtime on. Those are two different statements, and the review is structured to make sure you can tell which one applies to you.

If you fit the Who this is for profile, my honest read is that this is a B-tier (possibly high-B-tier) Worth the Credit call for you, and you should weight my verdict less than the fanbase's. If you fit the Probably not for you profile, the catalogue has sharper picks for your credit at Best LitRPG Audiobooks for Beginners and the S-tier and A-tier reviews at the top of the site.

For the most direct comp on the site to help calibrate, see Terminate the Other World! — same broad premise, very different execution, and my Worth the Credit call on that one (where the Nova Roma call went the other way).

Last reviewed: June 2026 — DNF at approximately 75-80% of Book 1. Series ongoing: 4 of 5 books published; Book 5 (Empire) scheduled for Summer 2026 as the finale.