Short answer: an approximation, not a block-for-block copy

When turning a real place into a Minecraft world, the first thing to be clear about is how close it can actually get. Honestly: what TopoBlocks makes is an approximation, not a block-for-block copy of real buildings.

Its data comes from two public sources: building footprints, roads, and water come from OpenStreetMap, and the rise and fall of the terrain comes from open elevation data. So it can recreate a place’s overall texture very well — how blocks are arranged, the direction of the main roads, the position of rivers and coastlines, and the slopes and ridges of the land. But a single building’s real floor count, interior structure, and facade materials are not reproduced, because that information usually simply isn’t in the public data.

In other words, you get a world that’s “recognizable as this place,” not a photo-grade block-for-block copy. If you’d first like to understand how the whole “real map → world” process works, see how to choose a real-map-to-Minecraft tool and the in-depth tutorial generating a world from a real map.

What the “quality score” actually represents

Before generating, TopoBlocks gives the area a quality score. It measures how well that area is covered in OpenStreetMap data — whether buildings, roads, and water are fully mapped.

  • It’s an estimate of data coverage, not a precision guarantee. A high score means the data is denser, and the result is usually richer and closer to the real thing; but even with a very high score, the result is still an approximation, not survey-grade precision.
  • A low score means the area is sparsely mapped. In rural, remote, or under-mapped places, there’s little building and road data, so the result comes out empty and flat. If the place you picked is like this, see what to do when the place is too empty with no buildings.

So the quality score is there to help you judge whether an area is worth generating, not as a promise of “how accurate it will be.”

See it clearly before paying: free quality score + 3D preview

TopoBlocks is designed around look before you buy:

  1. Check the quality score for free — first find out whether this area’s data coverage is sufficient.
  2. View the low-resolution 3D preview for free — see the terrain and rough building distribution at a glance, and judge whether the result matches your expectations.
  3. Adjust if you’re not satisfied — switch to a denser urban area, change the size, or pick another gameplay template (Faithful Recreation / Survival-Friendly / City Exploration / Treasure Adventure), all for free.
  4. Pay to generate only once you’re satisfied — generate the importable .mcworld only after confirming it’s worth it.

Data-dense, well-known city areas usually look better. If you want to pick a place that photographs well, see the best places to make a Minecraft map.

Two final notes: for paid generation, prices are shown in the app, and jobs that fail are refunded automatically; and whether generating or doing anything afterward, TopoBlocks never overwrites your existing worlds — it always generates new files and keeps traceable versions. Using the free quality score and preview to see things clearly first, then deciding whether to generate, is the safest approach.