Concept art visually defines the game early in development, while illustrations promote the finished product.Concept art establishes the visual style and explores ideas. It’s about answering questions and problem-solving. Illustrations promote the game with polished, visually compelling images for marketing. The focus is on selling the established vision, not problem-solving.Concept artists define the look of characters, environments, props, key art, and other game elements. Illustrators bring concept art to completion with rendering, lighting, and other finishing touches.