I'm happy to present my experiment I've been working on the past few days: overview maps of RDF / ORE worlds.

I think our server looks visually incredible. What do you think?

The maps are created with Mapcrafter and use world archives from https://archive.openredstone.org/ and https://archive.org/details/rdf_world_save I saved.

GitHub pages has a limit of 1 GB. How was I able to fit two views of each world? The most important space-saving measure is using 4x4 textures and 4x4 chunk tiles. The normal textures are 12x12 which would use 9x the space, but I found 4x4 a reasonable visual compromise. However Mapcrafter uses Leaflet to store the map as a giant quadtree and each tile is by default one chunk (16x16 blocks). For small texture sizes, there is a lot of directory and PNG file overhead from using one chunk per tile (64x64 image), so storing 4x4 chunks (256x256 image) saves a lot of overhead. Finally, I run optipng on all tiles to optimize all PNG files saving roughly 25% size.

Size benchmarks (items are directories and files):