The Reckoners is a superhero trilogy (Steelheart, Firefight, Calamity) by Brandon Sanderson, but without the heroes.
In a modern-like era, the Calamity, a red star, appeared in the sky, and people started getting superpowers. The problem is, there are supervillains, but no superheroes (though a religion whose medallion is a stylized "S" believes that the heroes will come). As a result, most of the world is plunged into chaos, and the Reckoners are the only ones who are fighting back.