As a science fiction RPG player (classic Traveller to be precise) I want to be able to create worlds with extreme terrains/environments. Here are some terrain icons that I would like to see added:- COLD WORLD BIOMES 1. Radiation-Shielded Biomes 2. Ice-Covered Biomes 3. Cold Desert Biomes 4. Cryovolcanic Biomes 5. Astrobiological Microenvironments 7. Magnetically Shielded Biomes 8. Frozen Void Biomes 9. Artificial Biomes (human-made structures) 10. Dust Storm Biomes HOT WORLD BIOMES 1. Hyper-Arid Desert Environments 2. Volcanic or Geothermal Landscapes 3. Rocky Barren Plains (cratered and bob-cratered) 4. Salt Flats and Evaporative Basins 5. Molten or Semi-Molten Surfaces 6. Hyperthermal Oasis 7. Dust Storm Environments 8. Magma Oceans 9. Metallic Plains