A temperate biome
Rugged rock faces, deep gorges, and sharp ridges. The barren mountains are freezing in winter and all the warmer in summer. Scree, fog, clouds, and lurking creatures make traversing them a dangerous endeavor. Filled with burdenstone, a precious gemstone that transfers its weight to nearby metal, the mountains force strategy adjustments for most adventurers.
(we prefer ko-fi due to lower fees)