In Devious Designs, players take on the role of a secret agent tasked with restoring objects and monuments affected by a cube-transforming weapon. This unique puzzle game combines elements of espionage and geometric problem-solving, as the agent navigates levels by walking on walls, lifting objects, and shooting. The core gameplay involves assembling geometric shapes by dragging and dropping pieces onto translucent slots within a time limit. Players must balance speed and strategy, collecting power-ups and avoiding enemies while solving increasingly complex puzzles. With its blend of action and brain-teasing challenges, Devious Designs offers a fresh take on the puzzle genre, complete with a password system for progress tracking.