Halloween costumes are great, but the real party happens after the candy's gone and the night's still young. This is the spot for the crowd who's already been out causing chaos in their best Hottieween fits and wants somewhere to keep the energy alive. Substance, tucked inside Neonopolis, brings its full nightclub setup to the table—heavy bass, moving lights cutting through the dark, and a dance floor built for people who still have more night left in them.

Expect the kind of late-night atmosphere where the line between the holiday and the club blurs together. DJs will keep things moving well past when the trick-or-treating crowd has gone home, with the venue's sound system and visual displays doing exactly what they're built for. It's less about a specific theme and more about giving the costumed masses of Vegas a place to land once the rest of the city starts winding down.