Anime that do it better:
Future Diary
Darwin's game (more of an action one, but same premise)
Danganronpa:if you haven't played the game this one is worth a watch. If you have them the game has more detail, I find games like it so boring though.
Tomodachi Game.
I looked into the manga a lot because the anime is kind of all over the place. Didn't read the manga, just synopsis of all of them. So there's like 4 different mangas all following the same plot, no real character development, and since the main character has already played before the level of suspense that these types of anime usually supply is gone. There's a lot more of these that are better. It's also unnecessarily perverted, I guess in like the 3rd manga they explain it as "The King is a Pervert" but I'd say half the tasks are forcing some girl to sleep with some guy, or some girl will use sex for leverage, or it'll force a guy to grope her. They're all high schoolers too, I know that's not a surprise for anime really. But I find it tremendously uncomfortable. Also everyone but the main characters have no individual thought process. It seems like it's just the person that the episode is following and the main character have any persuasion, everyone is just really dumb.