Echo: Secrets of the Lost Cavern - PC Puzzles - innovative inventory system allows you to combine and create new tools and items necessary to solve an array of thought provoking puzzles Exploration - photo-realistic environments of pristine landscapes and rugged wilderness Survival - hunt, fish, and fend off predators that threaten your quest Create Masterful Works of Art - they will come to life and their stories will help you along your journey In-game Encyclopaedia - filled with historically accurate data on the Palaeolithic period Puzzles - innovative inventory system allows you to combine and create new tools and items necessary to solve an array of thought provoking puzzles Exploration - photo-realistic environments of pristine landscapes and rugged wilderness Survival - hunt, fish, and fend off predators that threaten your quest Create Masterful Works of Art - they will come to life and their stories will help you along your journey In-game Encyclopaedia - filled with historically accurate data on the Palaeolithic period