PaBTSO starts with a revised version of LMoP and then expands out from there with a creeping tonal shift into cosmic horror.
The Wizards team did a great job of creating an adventure that has a little bit of everything that makes D&D fun. The original LMoP is very much a classic D&D adventure-a town needs help and resolving the problem requires a mix of investigation, combat, and exploration of the area in and around Phandalin, followed by a classic dungeon crawl in the mine. The D&D team has worked hard to provide a variety of campaign styles and genres for 5E, from heist adventures to exploring the Feywild and epic war campaigns, as well as the solar punk/hopepunk of Journeys through the Radiant Citadel to literally going to hell in Baldur's Gate: Descent Into Avernus, plus a variety of horror subgenres in Van Richten's Guide to Ravenloft.
