EXDU, dr4g0nc4v3rn, a colossal dragon's hoard cavern inside an ancient classic fantasy dungeon, immense terraced mountains of gold coins and gemstones banked along the sides and rear, giant shed metallic dragon scales scattered as traces only, massive toppled ancient stone pillars, towering weathered stone architecture and galleries, cracked vaulted cavern ceiling, smoke wisps, massive braziers, torchlight, low fog, rich golden magical glow, epic scale, broad open empty stone center-floor corridor, layered vertical depth, distant side arch, small discreet carved spiral symbol on a side stone element, adventurer's discovery atmosphere, cinematic lighting, realistic depth of field