Complex sentence: The growth of the gaming audience also brought in many female gamers, which resulted in a diversification of the male-oriented gamer identity, and who began to question some assumptions and tropes that were historically used by game developers.
Split into simpler sentences: The growth of the gaming audience also brought in many female gamers, which resulted in a diversification of the male-oriented gamer identity. This new audience began to question some assumptions and tropes that were historically used by game developers.