Indie games often challenge industry norms and mainstream game design in several ways. They offer unique and innovative gameplay mechanics, storytelling techniques, and visual styles that may not conform to traditional AAA game standards. Indie developers have the freedom to take creative risks and explore niche or unconventional ideas that may not appeal to a mass audience but can attract a dedicated following of players looking for something different. Additionally, indie games can address social issues, push boundaries, and experiment with new genres or gameplay concepts that larger studios may be more hesitant to explore. Overall, indie games play a vital role in diversifying the gaming landscape and pushing the industry forward with fresh perspectives and creative approaches.