Room 93 is the debut extended play (EP) by American singer and songwriter Halsey. It was released on October 27, 2014 by Astralwerks.[1] The project was re-released digitally on March 9, 2015, including a new version of its main single "Ghost"; this new version was later also included on the singer's debut full-length studio album Badlands (2015). The sound of the EP is rooted on the electropop music genre.[2] A digital remix version of the EP (featuring three remixes for the songs "Hurricane", "Ghost" and "Trouble") was released on March 3, 2015. Along with the remix EP, a "One Mic, One Take" EP was released on the same date.[3][4] The track "Trouble" was featured on the promo for the episode "Best Laid Plans" from the American TV series Once Upon a Time.
The EP received a generally positive response. AllMusic praised Halsey's Room 93 for its moody, atmospheric electronic pop sound, drawing favorable comparisons to Lana Del Rey and Lorde. The review highlighted the EP as a clear display of the style that earned her a deal with Astralwerks, noting tracks like "Ghost" and "Hurricane" as standout singles. Particular acclaim was given to the closing track "Trouble," co-written with Chris Braide, for its stripped-back piano arrangement that showcases Halsey's emotive vocal performance.[2]