Minecraft world generator: describe a place, get a playable Java world

Most Minecraft map generators hand you a random seed and let the game decide the rest. This tool works the other way round: you describe the place you have in mind, such as a Japanese garden, a desert research base, a busy harbor or a fantasy archipelago, and the generator composes a world built around that idea.

You start by choosing between two kinds of project. A full world is an environment with its own landscape, meant to be opened and explored as a save. A build is a composition ready to import into a world you already have. Both come with the same downloads, only the main file changes.

Your description can be anywhere from 20 to 4,000 characters. Name the style, the atmosphere, the buildings and the details that matter to you. An optional reference image (JPG, PNG or WebP up to 10 MB) can guide the composition, the shapes, the colors and the landscape.

Every generated world covers 512 × 512 blocks. The terrain follows a landscape form chosen for your theme, such as plains, a valley, mountains, islands, a canyon, a crater or a coast, with a river when the idea calls for one and a stone and soil palette that suits the setting.

The middle of the map holds a broad, level building plateau that fades progressively into the surrounding relief, so the architecture does not float on a flat square in the middle of hills. Around it, forests, rocks and bushes are placed as real Minecraft blocks, and the world is tagged with vanilla biomes, from meadows and spruce taiga to desert, cherry grove or snowy slopes.

When the generation finishes, the project opens in a 3D viewer in the browser. It draws the same Minecraft block models and textures as the exported files, so what you inspect on screen is what you will find in the game.

Drag with the mouse to orbit around the composition, or click Explore to move in first person, flying or on foot, through the streets and rooms. A left click on a block selects it and shows its Minecraft coordinates, as the F3 screen would read them. Shift + click adds more blocks to outline an area.

From there, one button adds the selected block or area to your modification request. Instead of writing that the tower on the left needs a roof, you point at it and the coordinates travel with your instructions.

Each finished project offers two files. The world .zip contains a complete Minecraft Java Edition save in the Anvil format, for version 26.1.2: level data, game rules and the region files of the overworld. Unzip it into .minecraft/saves and it appears in your singleplayer list.

The save opens in creative mode with commands enabled, behind a world border. Time, weather, mob spawning and random ticks are paused so that crops, leaves and vines keep the composition as it was generated. You can change those game rules at any time.

The .schem file is a Sponge v3 schematic of the central composition with its surrounding ground, ready for WorldEdit or FastAsyncWorldEdit on a server or in an existing map. For a build project the .schem is the main download; for a world project the .zip comes first.

Before you subscribe, you can see the kind of result the tools aim for. Val des Cimes is a real example world made with our tools: a castle ringed by a moat and a village, with 82 furnished rooms between them, a river, spruce and birch forests, meadows and snowy peaks. It covers 1,024 × 1,024 blocks, twice the side of a generated world.

It was exported like a generated project: a Java 26.1.2 world save to drop into your saves folder, which opens in creative mode in front of the citadel, and a .schem of the castle composition for WorldEdit. The screenshots on this page come from its 3D preview.

World and build generation is part of the paid plans and is not available on the free plan. Spaleforce Pro (€20/month) includes 1 creation and 1 modification per month. Spaleforce Ultimate (€50/month) includes 5 creations and 5 modifications per month. Creations and modifications are counted separately, per calendar month in UTC.

Each action also uses 20 of the daily AI credits of your plan. A generation takes several minutes depending on complexity, and you can leave the page while it runs: the project keeps going in the background and appears in your projects. If a job fails, the 20 credits and the monthly action are given back.