Twin Thorns - 64x128 - (Extreme Difficulty)

In the shadowed aftermath of the Century Floods, this jagged ridge—once whispered of as the Spine of the World—was split by twin fault lines that crossed like ancient scars. When the waters receded, they left behind a poisoned fissure at the southern edge: a long, diagonal scar of toxic inflow that surges violently over natural stone lips and fragile beaver barriers, cascading badwater upward through the valley in relentless, climbing floods. The land itself rebelled. Massive clusters of Thorns erupted from the corrupted soil—impenetrable, razor-edged thickets born of the wasteland's rage. They choke terraces, block irrigation channels, and defy easy removal; beavers who dare demolish them risk painful injuries from the thorns' vicious backlash. Flat planting space is scarce, forcing every field and orchard onto precarious, hand-carved ledges that demand masterful vertical irrigation—chains of aqueducts, pumps, and sluices hauling clean water skyward against gravity and contamination. Your colony arrives at the fissure's mouth, drawn by a rare gift: clusters of ancient relics and ruins litter the starting zone, yielding abundant Science Points to fuel an early technological surge. Yet progress comes at a brutal cost. Expansion means battling the terrain's hostility—limited arable land, constant need for upward water transport, and hidden Unstable Cores buried in the heights that will detonate over time, unleashing devastating badtide waves unless contained by proactive dams, terrain reshaping, and careful planning. This is the legend of the Twin Thorns: a poisoned spine where beavers must climb, irrigate, and endure to forge a towering citadel from ruin. Survive the ascent, master the vertical hellscape, and prove that even the world's broken backbone can bear new life. Key challenges: - Toxic bottom river overtops and floods upward in cascades - Thorns severely limit planting/usable space (slow, injury-risking demolition required) - Scarce flat land → intense verti