How often do bosses spawn?
The world runs a live NEXT BOSS IN countdown; observed frames show reminders in the seconds-to-minutes range, so encounters fire regularly during active sessions.
Events
Boss fights and the in-progress Hollow Dungeon Part II window. The King badge is no longer awarding. Crypt Token details live on /hollow-dungeon/.
Updated

Bosses are shared events rather than private instances. The world shows a NEXT BOSS IN countdown, and when it hits zero a boss encounter begins with its own BOSS FIGHT health bar on screen.
When a named boss is due, a banner prompts "1x1x1x1 is coming! Press ATTACK to join the battle." — joining the fight is a deliberate action rather than automatic, so watch for the prompt if you want the kill credit.
Footage from a live session shows the countdown in minutes — including a 51-second and a 10-second frame — so encounters are frequent enough to plan a session around.
The named boss observed in footage is King 1x1x1x1. Defeating it awards the badge "You defeated the King 1x1x1x1". On 2026-10-11 that badge stood at 1,807,261 awards and a past-day count of 0, so it is no longer being awarded. Its description still says Hacker Event Great Boss. This page does not say the boss was removed.
The code 1x1x1x1 used to grant 150 Hacker Tokens. It is expired, not a current code. The boss badge and that code are separate. See /codes/.
September 2026 ran a Hacker Event. On 2026-09-29 the Hacker Event 2026 badge stood at 7,706,374 awards and a past-day count of 0, so it is no longer being awarded. The badge description reads "You attended the Limited Hacker Event 2026".
Hacker Tokens were that event's currency. HACKER (50) and 1x1x1x1 (150) are expired. They are not current codes. What the tokens bought is still not observed here.
Whether a Zeus boss is confirmed, and what Lightning Tokens are, is on /zeus-event/. This page does not copy Lightning Token shop prices.
Roblox lists a public event titled HOLLOW DUNGEON EVENT. The first window was 2026-10-10 14:00 UTC through 2026-10-17 14:00 UTC. The subtitle is HOW FAR CAN YOU GO? The description is "The portal has awakened... What waits on the other side?"
The follow-up listing is titled HOLLOW DUNGEON - PART II. Its window is 2026-10-17T14:00:20Z through 2026-10-24T14:00:20Z. At the 2026-10-22 check those timestamps were unchanged and Part II was in progress. A HALLOWEEN EVENT listing starts at 2026-10-24T14:00:36Z, seconds after the dungeon window closes.
Part II's code batch pays Crypt Tokens. The currency, the six-code set, the current Shop redeem layout, and the 1,000 Studs gate are covered on /hollow-dungeon/. This page does not repeat that table, so the event details have one home and do not compete with /codes/.
The badge list on 2026-10-21 was still three names, and a 2026-10-22 recheck returned the same three. There is no Hollow Dungeon or Crypt Token badge. This page does not add floors, fragments, rewards, or a boss name from video titles.
A scheduled event board in the world advertises an "ADMIN ABUSE" session with a sign-up prompt and a countdown (one observed reminder read "Wed, Sep 16 at 10:00 PM"). Players sign up from the board and the game confirms with "Successfully signed up for this event!".
Treat these as community night events: exactly what happens during the session is up to whoever runs it, and the sign-up simply reserves your spot.
The official badge list on 2026-10-21 was still three names, and a 2026-10-22 recheck returned the same three. None of them is a Zeus badge, a Hollow Dungeon badge, or a Crypt Token badge. Welcome! had 14,606,778 awards and 60,110 in the past day, and it is still awarding. Hacker Event 2026 is no longer awarding (past day 0, total 7,706,374). You defeated the King 1x1x1x1 is no longer awarding (1,807,261 total, past day 0).
Badge counts are a public growth signal, which is why this site re-checks them instead of keeping the mid-September Welcome pace.
FAQ
The world runs a live NEXT BOSS IN countdown; observed frames show reminders in the seconds-to-minutes range, so encounters fire regularly during active sessions.
By lifetime awards, the defeat badge is still the smallest of the three: 1,807,261 against Welcome! at 14,606,778 on 2026-10-22. Its past-day count is 0, so it is no longer being awarded. This page does not say the boss was removed.
Part II is in progress. The official window is 2026-10-17T14:00:20Z through 2026-10-24T14:00:20Z, unchanged at the 2026-10-22 check. A HALLOWEEN EVENT listing starts at 2026-10-24T14:00:36Z.
They were the Hacker Event currency. HACKER and 1x1x1x1 are expired, not current codes, and the Hacker Event badge is no longer being awarded (past day 0 on 2026-09-29). Lightning Tokens are a different currency; see /zeus-event/. Crypt Tokens are covered on /hollow-dungeon/. Shop prices are not listed here.