Hourly averages. Dashed lines are game updates; dotted ones are icon or thumbnail changes. Data coverage and estimates.
Updated 60 times in 30 days · about every day · last
Average players in the 24 hours after each day's first update against the 24 before; within ±3% reads as flat. Other updates, events and time of day move players too.
Thumbnail · Sep 28, 2026Estimated earnings are in Pro
What HOLLOW 🔦 makes per day, week, month and year, an all-time estimate, and an estimator you can tune to the game's genre and store.
Nothing for sale.
Guests keep disappearing from the Royal Hotel. You're the detective they sent in. Ride the elevator to a new floor. Find the fuses. Restore the breakers. Get out before whatever lives here finds you. ⚠️ Over 20 threats stalk these floors. Blackouts, fog, spider infestations. Bosses that come for you personally. Some floors have something in them that shouldn't exist at all. 📁 Recover documents, case files, photographs, things the hotel would rather you didn't read. Ten Evidence Packs. Fifty Documents. Nobody has finished the case yet. 🎖 Rank up from Intern to Paranormal Specialist. Higher ranks spot things lower ranks walk straight past. Solo or with friends. Either way, the case only closes if you walk out. 🕳 Made solo. New floors, monsters and mysteries added constantly. Thanks for checking it out <3
