01 / Fantasy Studio

Free for personal useWindows

Type a sentence. Get a game.

Fantasy Studio turns one sentence into a playable 3D game, or a rendered cinematic video, made on your own computer. No code, no subscription.

Download from GitHub Watch it build

Source-available (BSL 1.1) · Game mode needs no GPU

02 / Sentence to playable game

You describe it. It builds a real game.

Game mode turns a sentence into a playable 3D world: collect, race, defend, survive and more. It builds in about a minute, and it doesn't need a GPU.

  1. 1

    Type the idea

    One sentence, the way you'd say it out loud. Say who you play and what you're after.

  2. 2

    Press Build Game

    The status reads “designing”, then “Reading your idea…” while it lays out the world.

  3. 3

    Play it

    A title card, a quest card and a START button. WASD to move, Shift to run, drag to look.

Rendered, not hallucinated.

The AI directs real tools, a 3D game engine and real rendering, so what you get is an actual game you can keep editing.

Fantasy Studio's Game mode with the sentence 'A fox racing through a snowy night forest collecting glowing orbs' typed into the prompt box next to the Build Game button.
fig. 1 · the sentence, typed into Game mode
about a minute later
The finished game's title card, Foxfire Chase, over a moonlit snowfield with a fox standing in falling snow and glowing orbs around it.
fig. 2 · Foxfire Chase, the game it built. Quest: collect 10 orbs
fig. 3 · recorded from the app. The wait is sped up 10×, typing and play are real time
03 / Watch it build

Every shot is real.

The game is built and played on screen by the app itself. Nothing here was generated by a video model.

Type the sentence, press Build Game, and Fantasy Studio lays out the world, writes the quest card and hands you the controls. In this run the fox gets a snowfield, ten orbs to find and a wolf that doesn't like company.

  • A game builds inabout a minute
  • GPU needed for Game modenone
  • Curated assets in the library300+
04 / Edits you can make

Point at the world. Type the change.

Turn on Inspect, hover the world and it tells you what's under the cursor. Click a spot, type an edit like “place a campfire here”, press Apply edit, and the game rebuilds with your change in place.

Inspect mode in the running Foxfire Chase game: a live readout says 'ground, terrain (-4.1, 2.3)', the spot is pinned and 'place a campf' is being typed into the edit box.
fig. 4 · Inspect on. The spot is pinned, the edit is typed
The rebuilt game with a campfire standing on the chosen spot, and the build log reading: placed 'campfire' at (-4.1, 2.3).
fig. 5 · after a restart, a campfire stands on that spot
Knight's Star Quest, built with the Cartoon preset: an armored knight on a grassy path through a misty valley, with the quest 'find 5 golden stars'.
fig. 6 · Cartoon preset: “A knight quests through a misty valley collecting 5 golden stars”

Or pick the look before you build.

Style presets change how the whole world is drawn. Same sentence, different game.

  • Photoreal
  • Cartoon
  • Anime
  • Horror
  • Pixel
  • Low-poly

There are real city maps too (New York, Tokyo, London) and a cinematic chase camera. When you outgrow it, export the game to Godot 4 and keep building there.

05 / One sentence each

Five games off the shelf.

Real gameplay of games Fantasy Studio already built. Each one started as the sentence next to it, and nothing more.

Tokyo Drift Nights: a red car drifting between rival cars on neon night-city streets.
fig. 7 · Tokyo Drift Nights
Swamp Samples: a scientist in a lab coat running across misty swamp grass toward a sample.
fig. 8 · Swamp Samples
The Manor Mystery: the win screen reads 'You win. It was the housekeeper. Every clue fits.'
fig. 9 · The Manor Mystery
City Bloom: roads swept out from a town hall with homes, a shop and a works zoned beside them.
fig. 10 · City Bloom
Rusted Outpost: mining rigs and conveyor belts carrying crystals across a glowing red moon.
fig. 11 · Rusted Outpost
  • 1

    Tokyo Drift Nights

    Racing

    a tokyo drift racing game through neon streets at night

  • 2

    Swamp Samples

    Exploration · collect

    a scientist collecting samples in a toxic swamp full of crocodiles

  • 3

    The Manor Mystery

    Detective mystery

    a detective mystery in a foggy victorian manor, find three clues and name the killer

  • 4

    City Bloom

    City builder

    a city builder where I lay roads, zone houses and grow the population to 500

  • 5

    Rusted Outpost

    Factory · automation

    a rusted mining outpost on a dead red moon

06 / Video mode

Or ask for a film instead.

In Video mode an AI director builds the scene in Blender and renders it for real. A film render takes about 90 seconds, a quick preview about 30. You get an MP4, a GIF, PNGs, and the .blend file to keep working in.

Video mode needs an NVIDIA GPU with 8 GB or more

A rendered polar bear walking across snow.
fig. 12 · polar bear
A rendered black bear standing on a rocky slope.
fig. 13 · bear
A rendered stag with wide antlers standing on a dusty, rocky hillside.
fig. 14 · deer
A rendered Ferrari, close on its front wheel, in soft grey fog.
fig. 15 · Ferrari
07 / How it runs

On your PC, not someone's cloud.

It's a Windows desktop app that runs on your own machine. No credits to burn, no retakes to pay for.

  • 1

    Game mode

    A sentence becomes a playable 3D game. Builds in about a minute, no graphics card required.

  • 2

    Inspect mode

    Point at anything in a running game and type the change. The game rebuilds with it.

  • 3

    Video mode

    An AI director builds and renders scenes in Blender from 15 cinematic recipes. You get MP4, GIF, PNG and .blend files.

  • 4

    Export to Godot 4

    Take the game into a real engine and keep going by hand when you want to.

08 / Download & install

One line in PowerShell.

I built Fantasy Studio. It's free for personal use and source-available. Paste this into PowerShell on Windows and it sets itself up.

irm https://raw.githubusercontent.com/bgrut/fantasy-studio/main/bootstrap.ps1 | iex

Read the script first if you like. It's on GitHub next to the source.

Source & download Full install guide
  • Free for personal useSource-available under BSL 1.1. Make small games for yourself and the people you love.
  • Commercial licensingAvailable. Write to contact@fantasylab.tech.
  • Support the buildPatreon membership is open. Join on Patreon.
09 / Follow the build

Watch it grow.

Short clips of what it builds, straight from the app. It's built in public, so the commits are there too.