CULPA INNATA is a thought-provoking adventure that takes place 40 years in the future. Comprised of most of Earth's countries, the World Union is labeled as an utopian society, devoid of war, famine, and disease -- until a World Union citizen is murdered in the "rogue state" of Russia, curiously coinciding with the accidental death of a prominent professor in Adrianopolis, a strategic border town between the World Union and Russia. You play as a young woman, Phoenix Wallis, a junior Peace and Security Officer assigned to investigate these disturbing events. During the investigation, however, Wallis unravels a more shocking truth about the worldview she has sworn to uphold and protect.
Playing from a third-person perspective, you move Wallis around by clicking the arrow in the direction in which you'd like her to travel. If an object can be interacted with, the mouse cursor will change to a magnifying glass for further inspection. Puzzles she faces might include picking a lock, solving a Rubik's Cube, reinstating power at a facility to hack into a security program, or following a recipe to make glue in order to patch a hole in the wall. At times you'll be asked to combine items in your inventory to create something new. When you meet characters you can talk to, you'll be able to select questions or responses from a list of branching conversation paths, which can affect the outcome of the story.