Muranyi-3 is here. It is the latest model from Tesana — our most powerful AI game model yet, and the biggest leap forward we have ever shipped in a single release.
If you have built a game with Tesana before, you already know how it feels: you describe what you want, and the AI builds a real, playable game for you. Muranyi-3 keeps that core experience, and makes the games themselves dramatically better — better-looking, better-feeling, better-playing — across the board.
The single biggest change with Muranyi-3 is not any one feature. It is that the games you make with it are visibly, immediately better — the moment they finish generating.
Incredible game capabilities
Muranyi-3 ships a major upgrade to how it renders the worlds it builds. Lighting feels more atmospheric. Materials feel less flat. Shadows are softer, skies are richer, and the same prompt that used to produce a serviceable scene now produces one that actually feels like a place.
On top of that, the model is much better at the small dramatic touches that sell a game: VFX on combat hits, particles trailing behind a sprint, glow on collectibles, weather and atmosphere in a forest. The kind of detail that used to take rounds of follow-up prompts now lands on the first build.
Smooth movement & animations
Animation has always been one of the hardest parts of a generated game to get right. Muranyi-3 closes most of that gap.
Characters in M3 run, jump, attack, idle, and react with motion that finally reads as alive. Smoother run cycles, weightier attacks, more natural idle poses — across the people, creatures, and enemies that fill your worlds. Hand a Muranyi-3 game to someone who has played a M2 game and the difference is the first thing they notice.
Advanced game logic
A great-looking, well-animated world still needs something to do. Muranyi-3 makes that something deeper.
The model is meaningfully better at advanced game logic — the systems and rules that make a game actually fun to play. Smarter NPCs that behave like they have goals. Combat that escalates in interesting ways. Quest and progression systems that hold together over a longer session. Inventory, crafting, dialogue, win conditions — all of it now lands closer to "real game" and further from "tech demo," straight out of the first build.
The result is games that hold up at scale. You can keep iterating on a Muranyi-3 project for longer, build it bigger, and watch it stay coherent the whole way.
Higher reliability
Across the thousands of games built with previous Muranyi models, we catalogued every bug and crash the model has produced — and ranked them by how often they happened. With Muranyi-3, 90% of the most common errors are solved before they ever ship into a game.
In practice that means more of your generations work the first time, and fewer of them ask you to stop and fix something to keep going.
New & upgraded code editor
Sometimes you just want to tweak something yourself.
Muranyi-3 introduces a full code editor inside the studio. Browse your game’s files, open any script, make changes, and the agent picks up from exactly where you left off. It is the best of both worlds — AI-driven game generation when you want it, and direct control when you need it.
You do not need to know how to code to use it. But if you do, you can use it to push your game further than the AI alone would take it.
5x faster generations
Loading times matter — especially for the people you share your games with. Muranyi-3 ships a new build pipeline that produces dramatically leaner game builds, so players open your games faster, downloads finish quicker, and your games feel snappier even on slower connections. You do not have to do anything; it just happens.
Generation itself is also significantly faster: end-to-end, Muranyi-3 is roughly 70% quicker than the previous version. Less time waiting, more time playing what you made.
More coming soon
Muranyi-3 is also the beginning of a bigger chapter for Tesana. Alongside the model improvements we have been working on a couple of larger pieces that we are not quite ready to launch yet — but that are coming soon:
A brand new Tesana desktop app for macOS and Windows is on the way — the same conversational game-making experience you know today, in a more powerful workspace built for bigger projects. And we are working on a built-in code editor right inside the studio, so you can open any script in your game, make changes yourself, and let the agent pick up from where you left off. We will share more on both soon.
Available everywhere you already use Tesana
Muranyi-3 is live everywhere you already use Tesana — on the web at tesana.ai and on iPhone.
There is nothing to upgrade, nothing extra to pay for, nothing to opt into. Open Tesana and you are already on M3.
What is next
Muranyi-3 sets the stage for the next few months of Tesana. The model is sharper at every layer, the games it produces are noticeably better the moment they finish generating, and there is a lot more coming soon.
We could not be more excited to see what you make.
— The Tesana team