“Maybe Happy Ending,” a stirring Broadway musical about two discarded robots who go on a road trip and forge a relationship, won the coveted Tony for best new musical on Sunday night, capping a remarkable journey for a show that faced long odds but won over both critics and fans.

The triumph of a show with a puzzling title and tough-to-explain themes was a vote of confidence in originality by an industry often dominated by big-brand intellectual property and big-name Hollywood stars.

The musical’s prize capped a night in which Broadway rewarded adventurous newcomers: Sarah Snook, the “Succession” star who played 26 roles in a technologically complicated adaptation of “The Picture of Dorian Gray”; Nicole Scherzinger, the former Pussycat Doll who, barefoot and bloodied, delivered a scorching performance in a revival of “Sunset Boulevard”; and Cole Escola, an alt-cabaret performer who imagined Mary Todd Lincoln as an alcoholic who longs to be a chanteuse and turned that zany idea into the hit play “Oh, Mary!”