DungeonsDeep AI vs AI Realm: An Honest AI Game Master Comparison

If you're shopping for an AI Game Master to run your tabletop RPG campaigns, two names keep coming up: AI Realm and DungeonsDeep.ai. Both are web based AI GM platforms, but they're built around different design choices that show up in two areas a player feels right away: what's on screen during play, and how the AI tracks the campaign over time. This post walks through those differences, with sources for everything we say about AI Realm.

We built DungeonsDeep.ai, so this isn't a neutral review. What we can do is link to AI Realm's own documentation, third party reviews, and player feedback so you can verify every claim and decide for yourself.

The Quick Verdict

• Pick AI Realm if you want a single player AI GM you can chat with in a text box, image generation included, and you're comfortable curating your own Notes file every few sessions to keep the AI on track.
• Pick DungeonsDeep.ai if you want a visual tabletop experience with a battle map, grid, and tokens, plus a Game Master that holds the campaign together without you maintaining a notes file on the side.

What Each Platform Is

AI Realm

AI Realm (airealm.com) is a web based AI Game Master that runs adventures inspired by the D&D 5e SRD. Players create a character, drop into a generated world, and chat back and forth with an AI GM that narrates the story, runs combat in text, and rolls dice. It's primarily a single player experience, with multiplayer reserved for higher subscription tiers, and the platform reports a community of more than 110,000 created campaigns.

DungeonsDeep.ai

DungeonsDeep.ai is an AI tabletop RPG platform we built to give players a visual tabletop experience with an AI Game Master at the head of the table. Adventures written by humans. Run by Artificial Intelligence. The platform runs on the Dungeons Deep Ruleset, based on the D&D 5e ruleset, with a separate rules engine handling the mechanics, a battle map and grid on screen, and a persistent campaign system that keeps every choice on record session after session. We're free to try and currently in closed beta at dungeonsdeep.ai.

The Two Biggest Differences

There are two differences that drive most of the rest. One is what's on screen during play. The other is how the AI handles long campaigns. Everything else flows from these two.

Difference 1: A Visual Tabletop Experience vs Text First Play

AI Realm keeps the experience centered on written narration and player input. A character portrait, a message box, a dice tray, and the AI's text in the middle. That design has a real audience. Some players prefer the focus that text first play brings, since there's nothing visual pulling attention away from the story.

DungeonsDeep.ai takes a different approach. The map, party position, combat state, character sheet, and quest tracking are all on screen at once, so the AI Game Master is narrating into a tabletop the party can actually see. Combat plays out on a real grid. Travel shows up on the map. For players who are used to Roll20, Foundry, or in person tactical play, that difference is immediately noticeable.

"Love it! The map and the combat specifically are very well done, certainly the best among the other AI RPG and DM services I've tried."

DungeonsDeep.ai beta tester

"The combat and grid map is leagues ahead of the other services."

DungeonsDeep.ai beta tester

Difference 2: Memory Across a Long Campaign

Memory is the part of an AI GM that decides whether session twelve still feels like the same campaign as session two. Both platforms have memory systems. They take different approaches.

How AI Realm Handles Memory

AI Realm uses a player maintained Notes system plus an auto generated Campaign Summary. Their own Player's Guide states the design directly: "if it's not in your Notes, the AI will eventually forget it." The platform recommends spending around ten minutes every five to ten sessions cleaning up Notes, deleting outdated sections, and reorganizing.

The V2 Guide also notes the AI's memory "is not infallible" and that it sometimes gets details like Armor Class wrong, or starts addressing players by a different character's nickname. The recommended fix is to keep a character record separate from the chat, "because it's more than likely to forget some things about your character during the journey."

Players in the AI Realm community have shared similar experiences:

• "I always have to remind it my gender and to award xp. Even when I have it in the notes."
• "Anyone else notice that as soon as you summarize the previous stuff, the quality drops a fair bit?"

That second one is the part worth sitting with. The AI Realm memory model relies on summarization. That creates a tradeoff: summarization helps preserve continuity, but some players report that it can also affect quality over time.

How DungeonsDeep.ai Handles Memory

We designed DungeonsDeep.ai's memory system to track the campaign at the platform level so the player doesn't have to. Character details, NPC relationships, plot threads, item inventories, and the consequences of every decision live in our campaign system, not in a context window. If you killed the king in session one, the king stays dead in session forty, without requiring the player to manually maintain campaign notes between sessions.

"The DM on your game has shockingly good memory."

DungeonsDeep.ai beta tester

"Great job remembering the nuances of things we've done in past campaigns. We mounted the head of a goblin lieutenant above the fireplace, and when we returned to the game in a new session and made our way back to the tavern, the AI Game Master specifically called out the head mounted above the mantle. Loved the personal touch. NPCs seem to have a memory of who we are and have the correct tone of conversation that starts back up with them later in the campaign."

DungeonsDeep.ai beta tester

"This game is delightful. The little things it remembers, the way it characterizes the dudes you make, it's all very charming."

DungeonsDeep.ai beta tester

Rules: A Dedicated Engine vs A Language Model

The rules layer is the second place each platform makes a different design call. Language models are great at narrating a goblin ambush. They're less consistent at tracking critical hits, conditions, and who rolls what during combat.

What Reviewers Found in AI Realm

The LowEndBox review of AI Realm notes a few combat moments that didn't track. When the reviewer's enemy hit him, the AI asked the player to roll damage. The AI applied "your Strength modifier" to an enemy's damage roll. Rolling a 1 didn't trigger an automatic failure unless the player explicitly stated it.

From AI Realm's subreddit, players also report friction around pacing and progression:

• "I've noticed some issues with the AI being a little zealous with pacing... after leveling me up to Level 2 I found the stakes rather high for my low level character so I called out the DM and it changed the story to be more appropriate."
• "I always have to remind it... to award xp."

None of this is unusual for an AI GM that runs rules through a language model. Plenty of players enjoy AI Realm and adapt around it. It's a design tradeoff: lighter rules architecture, more flexibility, occasional surprises.

How DungeonsDeep.ai Handles Rules

DungeonsDeep.ai runs rules through a dedicated engine and lets the storytelling model focus on narration. When you swing at a monster, the platform handles to hit calculation, damage type resolution, critical logic, and condition tracking with code. The AI Game Master then narrates the result. Encounter difficulty and progression pacing are tuned by the human authors who wrote each campaign, so the stakes line up with character level rather than getting improvised on the fly.

"I was surprised how sophisticated the AI was at maintaining the game state and rules."

DungeonsDeep.ai beta tester

"The AI tone and speech is great, accuracy, flexibility, and fluidity of the AI responses is great, accurate game rule mechanics is great."

DungeonsDeep.ai beta tester

The split is the design philosophy. Storytelling models tell stories. The rules engine handles math.

Roleplay Endurance: How Long Can a Campaign Run?

AI Realm's free tier exposes a shared context limit starting at 70,000 characters. That's a soft cap on how much of the campaign the AI can hold in working memory at once. Combined with the player maintained Notes system, it sets up an expectation: long campaigns reward active player maintenance.

DungeonsDeep.ai is built around a different assumption. Whether you run a one shot or a campaign that lasts months, our position is that the player shouldn't have to maintain a notes file outside of the game. The campaign system tracks the world for you so play stays inside the play.

Where AI Realm Wins Right Now

Where AI Realm clearly leads at the time of writing:

• It's live and stable. 110,000+ campaigns created. You can sign up and play tonight without waiting for a beta wave.
• Image generation is built in. Atmospheric scene art, character portraits, and an image reroll system are part of the core product.
• Storytelling polish. Reviewers consistently praise AI Realm's opening worldbuilding and narrative flavor.

Where DungeonsDeep.ai Was Built Differently

DungeonsDeep.ai was built around a different set of assumptions about what AI tabletop players want: less manual upkeep and more visual play. Concretely, that looks like:

• A visual tabletop on screen. Battle map, grid, character tokens, fog of war, character sheet, NPC and quest tracking visible at a glance.
• Memory at the platform level. No Notes file maintenance. The campaign system holds the world.
• Rules on a dedicated engine. Combat math, dice logic, XP, and conditions live in code.
• Adventures written by humans. Each campaign is designed by a tabletop author. The AI Game Master runs the world they built. Pacing and stakes are tuned to character level instead of improvised on the fly.
• Combat and grid systems built for tabletop play. Beta testers consistently flag combat and the grid map as the standout feature compared to other AI GM platforms.

"So I have tried Dungeons Deep, Friends and Fables, and MacerAI. DD is the one that impressed me the most. The other options just made me realize DD spoiled me."

DungeonsDeep.ai beta tester

"This is easily the best AI DM site in existence and deserves way more attention!"

DungeonsDeep.ai beta tester

Side by Side

The at a glance comparison:

Feature	AI Realm	DungeonsDeep.ai
Interface	Text first chat	Visual tabletop
Memory	Player notes	Platform managed
Rules	Language model	Dedicated engine
Long campaigns	Manual upkeep	No upkeep
Adventures	AI generated	Human written
Images	Included	Roadmap

Frequently Asked Questions

Is DungeonsDeep.ai a direct AI Realm alternative?

Yes. Both are web based AI Game Master platforms for tabletop RPG play. The major differences are that DungeonsDeep.ai is a visual tabletop with a battle map and grid where AI Realm is a chat interface, and that DungeonsDeep manages campaign memory at the platform level.

Does AI Realm forget your character over time?

According to AI Realm's own V2 Guide and player reports on its subreddit, sometimes yes. The documentation says the AI sometimes gets details like Armor Class wrong, may address you by a different character's name, and recommends keeping a character record outside the chat. The Notes system is the platform's recommended workaround.

Which platform is better for long campaigns?

It depends on how much memory work you want to do yourself. AI Realm's Notes model gives the player explicit control over what the AI remembers. DungeonsDeep.ai moves that work to the platform so the player can stay focused on play.

Does DungeonsDeep.ai have a battle map and grid?

Yes. DungeonsDeep.ai ships with a real grid, character tokens, fog of war, and a character sheet on screen. AI Realm does not currently offer a battle map in the same sense. The play experience there is conducted in a chat window.

How do I try DungeonsDeep.ai?

Head to dungeonsdeep.ai and register for the closed beta. It's free, and you'll get access to the next round of playtesting along with the AI Game Master, the rules engine, the battle map, and the campaign system.

Start Adventuring

If you're looking for an AI tabletop platform with a visual tabletop and a campaign system that tracks itself, that's the experience we built DungeonsDeep.ai for. Sign up and try a campaign that's built to keep going.

If you'd rather hang out with the community first, find us on Discord or the DungeonsDeepAI subreddit. We're real players too, and we're always happy to talk shop.