After an astral fallout somewhere in Siberia, a mutated city is born with fears of leaving their nuclear home. Every year, the city elects a brave venturer to leave the city and explore, but after forty elections, nobody has returned from outside the walls. Venturer follows the story of Bruto and his arrogant ladybug companion, Moltego as they discover the secrets of what lays outside the ruins, and what lies inside of theirselves.