![](https://i.mydramalist.com/X6Yox_4t.jpg)
![](https://i.mydramalist.com/MAEAvt.jpg)
They are both based on horror/psychological thriller manga, both follow the idea of a hero or group of heroes trying to uncover and catch a mastermind who wants everyone dead, and despite the similarities, the stories vary greatly in many ways. Plus, Ousama Game is one movie instead of a series, so you won't be wasting much time if you happen not to like it!