Dungeons Deep First Look: 24 Hours With an Excellent Dungeon Crawl and a Silent Party

Access disclosure: Dungeons Deep is in closed beta and the developers provided us with comped access. No conditions were attached to our coverage; this first look is independent and unpaid.

This is a hands-on first look at a closed beta, not a rated review. We don’t score pre-release software — a beta can’t be fairly rated, and a closed one changes week to week. A full rated review comes at launch.

Dungeons Deep makes a bet almost nobody else in this category makes. Its tagline is the whole thesis: “Adventures written by humans. Run by Artificial Intelligence.” The adventures are authored by people. The AI’s job is to referee them — to run the table, not to invent the story.

We spent 24 hours inside the closed beta. The short version: it is one of the best-run games we’ve played in this category, and one of the loneliest.

What It Actually Is

The platform comes from Portalis AI and is built on the SRD 5.2 under Creative Commons Attribution 4.0 — so classes, skills, ability checks, and grid-based tactical combat, all the familiar furniture. There are persistent saves. You can play solo or gather a party of up to five human players. The game master speaks: the site’s own line is that it “narrates in spoken natural language,” and that’s exactly the experience — a voice running the table for you so you can skip the rulebooks.

Pricing isn’t public. There’s no plan page to inspect, which is normal for a closed beta and the reason our directory entry carries no pricing chip.

The Game Underneath Is Genuinely Good

We want to be unambiguous about this before the criticism, because the criticism is specific and the praise is broad.

The gameplay is beautiful. It’s fun. It runs well — no stalls, no dropped turns, none of the instability we’ve walked into in other betas. And the game master keeps a tight ship: rules are applied consistently rather than narrated around, checks actually resolve, and the systems don’t quietly bend when the story would prefer they did. That last part is rarer than it sounds. A great deal of what passes for mechanics in AI RPGs is narration wearing dice — a GM describing a rule it isn’t really enforcing. Dungeons Deep enforces.

The economy holds up too, which is a detail worth dwelling on because so few platforms get it right. Loot feels meaningful — items you’re pleased to find, not adjectives attached to a noun. Commerce works: shops behave like a functioning market rather than a vending machine that exists because RPGs are supposed to have one. Classes and skills give real variety to how a run plays out.

Taken purely as an adventure engine, this is a strong product already, in beta.

One Voice Does Everything

Here’s the seam.

Everything reaches you through the game master. It narrates the scene. It narrates the combat. And it also delivers every NPC’s dialogue — in the same voice, in the same register, with nothing marking the boundary between “the world describes itself” and “a person is speaking to you.”

The effect is that NPCs never acquire a soul. You are always being told about a conversation rather than having one. Platforms that give characters their own voice — a visible contrast between narrator and character — produce connections that land; this doesn’t, and the difference is immediately felt rather than intellectually noticed.

This is a variant of the failure we measured across the field in why AI RPG characters hold one-on-one and collapse in a party: a cast converging into “one narrator wearing several names.” The difference is that in most products that flattening happens gradually, as the model loses its grip on distinct personalities over a long session. In Dungeons Deep it isn’t drift at all. It’s the architecture. The cast starts flattened, because a single narrating game master was never designed to un-flatten it.

The Party You Can’t Talk To

The sharper version of the same problem is what happens when you play alone.

Start a solo campaign and the game tells you plainly that going it alone is too hard, and steers you into recruiting party members. Fair enough — that’s honest difficulty design, and mechanically the companions do their job.

Then the game starts and you find out you speak for all of them.

Every party member’s dialogue is yours to write. They have no lines of their own, no personality to discover, nothing to say back to you. If you want any relationship with the people you’re adventuring with, you have to roleplay both halves of it yourself. Which means the party is mechanically present and dramatically absent: you are told you cannot survive alone, given companions, and then left exactly as alone as you started.

Twenty-four hours in, that’s the thing we’d change first. There was no sense of friendship, no companionship, no reason to look forward to a rest scene. For a certain kind of player — someone who wants a clean, well-refereed dungeon crawl and treats companions as build slots — this will read as a non-issue. For anyone who plays these games for the people in them, it’s the whole issue. It isn’t our cup of tea.

The Memory Works. We Had No Reason to Use It.

We ran our usual check on recall: plant specific facts with NPCs early, come back much later, see what survives. Dungeons Deep passed. The facts came back accurately, which means there is real per-character memory under the hood and not just a rolling context window. On its own that’s a good result — most campaigns in this category fall apart at turn 50 precisely because nothing persists.

And it produced the strangest note in our 24 hours: the memory system works, and we felt no motivation to talk to anyone anyway.

That’s worth stating carefully, because it’s a lesson beyond this one platform. Memory is necessary for characters to matter, and it is nowhere near sufficient. A character who remembers your name but has no voice of their own is still not someone you want to spend an evening with. Dungeons Deep has built the harder half of the problem and skipped the cheaper half.

What Happens Next

Dungeons Deep is a well-built game with a hole where its cast should be, and the encouraging thing is that the hole is a design decision rather than a technical wall. Giving NPCs and companions their own voices — distinct from the narrator’s — is a smaller engineering problem than the persistent memory and rules enforcement this team has already shipped. They’ve done the hard part.

We’ll keep playing through the beta and publish a full, rated review when Dungeons Deep launches — scored against the same public methodology as everything else in our directory. Until then, our directory of AI RPG platforms covers everything you can play today, and why AI RPG characters collapse in a party has the fuller breakdown of the problem this beta ran into from a new direction.

Disclaimer: Dungeons Deep is a product of Portalis AI, Inc. Arcanum is an independent publication and is not affiliated with, endorsed by, or sponsored by Portalis AI. Dungeons & Dragons and D&D are trademarks of Wizards of the Coast LLC; Arcanum is unaffiliated with Wizards of the Coast or Hasbro, and “5e-style” here refers to the openly licensed System Reference Document, used nominatively to describe rules compatibility. Features and pricing described are those of a closed beta and may change.