Pholskar is an unforgiving, geologically volatile planet home to multiple species of giants who maintain an uneasy coexistence. The planet's surface features dramatic mountain ranges riddled with cave systems where stone giants reside, active volcanic regions where fire giants and slag giants dwell, and tempestuous cloud layers where cloud giants and storm giants build floating cities. The world's three moons—Thremyr's Eye, Minderhal's Eye, and Fandarra's Eye—are home to moon giants who maintain mysterious observatories and rarely interact with surface dwellers. The Cloud Imperium, a technocratic oligarchy of cloud giants ruling from the flying city of Agrishall, maintains nominal control over the planet through superior technology and weather manipulation capabilities. Agrishall itself is an engineering marvel capable of generating perpetual tempests and housing thousands of cloud and storm giants in crystalline towers that pierce the storm clouds. The planet's atmosphere varies dramatically by altitude—thin and frigid at the highest peaks, scorching and toxic near volcanic vents, and pleasantly breathable in the middle cloud layers favored by flying giants. Stone giants claim the deepest caverns and highest peaks as their domain, creating intricate subterranean cities lit by bioluminescent fungi and featuring massive stone sculptures of their ancestors. Fire and slag giants inhabit the volcanic calderas and lava tubes, forging legendary weapons and armor in natural furnaces while maintaining an endless rivalry over metallurgical techniques. Despite constant territorial disputes and philosophical differences between giant species, Pholskar has avoided open warfare for centuries through a complex system of honor-bound treaties, dueling grounds, and neutral trading posts. The planet attracts offworld scholars studying giant culture, thrill-seekers hoping to prove themselves in the harsh environment, and weapons dealers seeking legendary giant-forged armaments.