The creator is not against islamic religion, she is a believer and she is telling that Mahsa, the MC, is a good and muslim girl. She respects the precepts. This game is not against Islam.
The question is that she is telling an story about corruption, drugs, sex in an islamic country. IMO some people mix religion, society, human behaviour, biology, nation, politic, goverment and law in the same box. To tell that in Iran, or another islamic country, there are corrupted people, drugs, parties, hard sex, mobs and so on, it is not going against a religion.