A planet where the pressure is so high that ice sublimates into fire! Gliese 436 b is a Neptune-sized exoplanet orbiting the red dwarf Gliese 436. It was the first hot Neptune discovered with certainty and was among the smallest-known transiting planets in mass and radius, until the much smaller Kepler exoplanet discoveries began circa 2010. Use with the WHIMC datapack setting the biome to Warped Forest.