One developer, one first campaign, and a fairly specific opinion about what a computer should and should not be doing at a table.
I had always wanted to play and never had a group that was interested, so for years the game was something I watched other people do. I have watched content creators like Critical Role for a long time, and those shows make the whole thing look easy: the prep, the data management, the production. You are seeing the polished result of work that happens off camera, and it never occurs to you how much of it there is.
Then I sat down at an actual table, and it turns out the game has homework.
Once I started playing, and started paying attention to how other casual groups played, I kept seeing the same thing. Somebody would stop to go looking. A player hunting for what a spell actually does. A DM scrolling back through notes for a detail from a session two months ago. Somebody trying to remember the name of the person who gave them the job in the first place.
Each of those is only a minute or two. But they land in the middle of a scene, and the pace drops, and the person who was in character a moment ago is now reading a document. That is the cost I wanted to attack: not the rules, the interruptions.
There are genuinely good tools out there for world building, for managing campaign data, for building characters, and there is D&D Beyond. I tried a fair number of them. I was not taken to any of them. Some had interfaces I found strange to move around in, some buried me in information before I knew what I was looking at, and some were missing the one thing I wanted. None of that means they are bad software. It means I wanted something shaped differently.
So I started making my own version, for fun, because building things is what I do for a living.
I know a lot of people are not fans of AI, and especially not in this hobby. I want to be straight about my own position rather than let you guess at it.
I have tried the applications built around AI being a player, or the DM, or both. I was not a fan of any of them, and I understand the sentiment completely. The game is people at a table. An AI in one of those chairs is not the thing I showed up for, and Isometra will not put one there.
What I think AI is genuinely good for is the homework. Most of us struggle to get a group in the same room in the first place, since scheduling is the real final boss, so when we do manage it that night should be spent playing. Being able to ask a question and get the answer out of your own campaign in a couple of seconds, with a link straight to the actual record so you can see it, edit it and carry on, is time handed back to the table. It reads your campaign. It does not invent one, it does not sit in a chair, and everything it writes is a draft you approve, edit or undo.
There is also image generation, and it is entirely optional. Every picture in the app has an upload button next to the generate button, and nothing is ever generated unless you ask for it. When you do ask, it works from an art style you set once for the campaign and from whichever characters you choose to use as references. Consistency across a big cast is still not as good as I want it to be, and I would rather say that than pretend otherwise. For maps, one-off NPCs, items and the like, it is there for the DMs who enjoy giving their table that bit of extra flair. If that is not you, ignore it and nothing about the app gets worse.
The other half of this is quality of life, and immersion that does not require five separate subscriptions. Casting the map to a TV or connecting any browser in the room to your session, so the DM can show their players a visual at the click of a button while still looking at their own command center. Audio clips that fire in coordination with a moment and the picture that goes with it. Projecting a map down onto the table itself, if that is how your group plays.
I also completely understand the tables that want paper only and no devices out, so that is built for too. You can print any NPC, item, spell or location as a card at a few different sizes, and take the whole campaign with you as a zip of readable Markdown, a campaign.json with every field, and your images, or as a PDF book you choose the contents of.
There is no team here. I build it, I fix it, and when something is broken you are emailing the person who wrote it. That cuts both ways and you should know it going in: things land quickly and I answer my own mail, but I am also one person with a finite number of evenings.
I have been a gamer since I was 9. OSRS, MapleStory, WoW, League, and a long list of others I loved. I built this to help people keep track of their own worlds and bring what they imagine into something they can actually show each other, using whatever helps, from ordinary software to AI where it earns its place. The point was never the technology. The point is that most of us get a few hours a month at a table with our friends, and I would like those hours to be spent playing.
Isometra