The export functionality in version 2.2 is a game-changer. You can generate a continent, then export separate layers: a player-facing parchment map, a DM-facing elevation map, and a JSON file containing all POI data. DMs can generate a world in 30 seconds that feels hand-crafted, complete with named mountain ranges and trade routes automatically calculated from terrain difficulty.
Map Gen 2.2 builds upon the foundational principles of its predecessors, enhancing them with state-of-the-art methodologies. This version focuses on three primary areas: map gen 2.2
MapGen 2.2 for Hearts of Iron IV (HOI4) streamlines custom world map creation via a user-friendly interface that directly exports mod templates Steam Community The export functionality in version 2
. While designed for older HOI4 versions, it remains a foundational tool requiring manual refinement for compatibility with current game versions Steam Community . For more details, visit Despite improvements, Map Gen 2
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Despite improvements, Map Gen 2.2 exhibits several repeatable flaws:
When generating maps at >8K resolution, the FFT‑based detail layer (used for small‑scale roughness) shows slight axial biasing – preferential alignment of features along the X and Y axes. This is a known trade‑off of separable convolution filters. The team plans to replace it with a non‑separable wavelet transform in version 2.3.