The Hollow Roblox monster schedule runs for nine nights, and a different monster arrives every day along with the new floor of the maze that goes with it. The event opens on October 22, 2026 and the rotation runs up to the Piggy finale on October 31.
| Day | Date | Monster | Floor |
|---|---|---|---|
| Day 1 | October 22 | Seek (DOORS) | Floor 1 |
| Day 2 | October 23 | Twisted Dandy (Dandy's World) | Floor 2 |
| Day 3 | October 24 | Biter (Demonology) | Floor 3 |
| Day 4 | October 25 | The Deer (99 Nights in the Forest) | Floor 4 |
| Day 5 | October 26 | Hiachi (The Mimic) | Floor 5 |
| Day 6 | October 27 | Mimic (Animal Hospital) | Floor 6 |
| Day 7 | October 28 | The Inspector (Scary Shawarma Kiosk) | Floor 7 |
| Day 8 | October 29 | The Overseer (WARDEN) | Floor 8 |
| Day 9 | October 30 | Piggy (Piggy) | The final monster; the live finale is the next morning |
Each new floor opens at 2:00 PM PT, and Roblox Plus subscribers get in two hours earlier at noon PT.
The Hollow Roblox monster schedule night by night
Every monster is the main antagonist of the Roblox game it comes from, which is what ties the schedule together: the game's roster of nine horror experiences becomes the event's roster of nine nights. Seek is DOORS' single-eyed creature, Twisted Dandy has Dandy's World flower head, Biter comes from Demonology, The Deer from 99 Nights in the Forest, Hiachi from The Mimic, Mimic from Animal Hospital, The Inspector from Scary Shawarma Kiosk, The Overseer from WARDEN and Piggy closes it out. The monsters guide lists the giveaway feature of each one.
Every night has a creator showdown
Each night streams a creator showdown from inside the Hollow. The streams are 30 minutes each and run in Pacific Time: October 23 at 11:00 for Seek, October 24 at 16:00 for Twisted Dandy, October 25 at 08:00 for Biter, October 26 at 15:00 for The Deer, October 27 at 05:00 for Hiachi, October 28 at 12:00 for Mimic, October 29 at 12:00 for The Inspector, October 30 at 17:00 for The Overseer and October 31 at 09:30 for Piggy. Watching the streams in the hub also pays Tickets. The live finale guide has the full schedule with the streamers behind each night.
What to do with an unfinished floor
If you finish a day's floor before the next one opens, keep replaying it for the day's UGC prize and badge. The floors do not lock permanently, so an early clear still has value.
The finale on the morning of October 31
The ninth and final monster, Piggy, arrives on the ninth night, and the creator showdown that closes the event streams from inside the Hollow on the morning of October 31. Rewards keep paying until noon PST on November 2, so the finale is the end of the monster rotation rather than the end of the event. The live finale guide covers what happens in it.