On June 3, 2017, Protagonize closed down due to stagnant user growth and declining revenue from advertising and donations.

Protagonize is an online community and self-publishing platform, launched in December, 2007 by creator Nick Bouton as a home for Choose Your Own Adventure-style branching stories.

[9][10] Shortly after launch, the site began to allow for linear narrative as well, and has since expanded to include poetry, screenplays, and other forms of literature.

Following its subsequent growth, there has been an increasing focus on the community aspect of the site, with features such as groups and writing circles being added.

[15][16] On June 3, 2017, Protagonize closed down due to stagnant user growth and declining revenue from advertising and donations.