Set before the events of Cally's Caves 3, Cally's Trials is a roguelike action-platformer with a weapon-levelling system that lets you evolve weapons as you use them. Cally must save her parents from the maniacal Herbert, who has laid waste to the Caves and built a massive lair deep inside. Herbert's experiments have twisted the caves into a living nightmare, and our plucky six-year-old heroine must overcome staggering odds: