Exit Music is a Doki Doki Literature Club mod that is surprisingly dark and edgy. It focuses on Natsuki and MC trying to protect her from her abusive father. I'd say it's on the border of being worth playing.

The main objection I have to it is that the portrayal of the girls besides Natsuki is really inaccurate and insulting:

Despite all these horrible flaws, the Natsuki drama is good, and the ending is faithful to the spirit of the original game. It also has some good original music.