Slop Tower Defense event

Slop Tower Defense Halloween: Schedule, Times & Next Countdown

Updated October 19, 2026 By AllThingsHow Staff 4,800 playing now

Halloween is the seasonal event running through Slop Tower Defense, the Roblox tower-defense game that has pulled in more than 31 million visits and keeps around about 4,800 players in its servers at any given moment. The event is themed around a spooky wave of undead attackers, and rather than being a single one-off, it returns on a regular weekly rhythm so players keep coming back for the holiday content.

Each sitting leans into the Halloween fantasy: the lanes fill with zombies to hold back, and the limited-time push is built around the game’s seasonal rewards. Because it runs again every cycle, missing one weekend is never the end of it — the next one comes back around on schedule, and the upcoming start time and the usual windows are shown on the card below.

Artwork for the Halloween event in Slop Tower DefenseNext occurrence

Slop Tower Defense

Halloween

Oct 24, 1:00 PM ET

Next in 5d 4h 59m

Usual times
  • Saturdays, 1:00 PM ET
  • Saturdays, 2:00 PM ET
  • Sundays, 7:00 AM ET

Runs weekly.

TimezoneET

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How often Halloween runs

Halloween runs on a weekly cadence, landing roughly once a week, and it has gone live 3 times so far. The next one is set for Saturday, October 24 at 1 PM ET.

It opens across three recurring windows rather than one. That spread exists so players in every part of the world get a convenient slot — a late-night session in one region is an afternoon in another. Times are shown in ET below, with the equivalent across the major world time zones; these shift by an hour either side around daylight-saving changeovers.

Window (ET)UKCentral EuropeIndiaJapanAustralia (AEDT)
Sat 1:00 PM6:00 PM7:00 PM10:30 PM2:00 AM (Sun)4:00 AM (Sun)
Sat 2:00 PM7:00 PM8:00 PM11:30 PM3:00 AM (Sun)5:00 AM (Sun)
Sun 7:00 AM11:00 AM12:00 PM4:30 PM8:00 PM10:00 PM

What happens in Halloween

The event is a holiday-themed defense push — the developer’s own framing is that the “zombies are coming,” and the run is built around holding the line against that seasonal horde. Expect the familiar beats of a limited-time tower-defense event:

  • Spooky reskinned enemy waves to hold back across the game’s lanes
  • Holiday-flavored rewards tied to clearing the event’s challenge
  • A time-boxed window to take part before the slot closes until the next cycle

Tips for catching it

Pick whichever of the three windows falls at a reasonable hour for you — the two Saturday-afternoon ET slots suit the Americas and Europe, while the Sunday-morning ET window lands in the evening across Asia and Australia. Setting a reminder for the one that fits your day is worth it, but there is no pressure: if you miss a weekend, Halloween comes back around on its next cycle.

How it fits the game’s rhythm

Halloween is the recurring seasonal fixture on the Slop Tower Defense calendar, running alongside the game’s broader update schedule. The developer has larger features like Achievements and a Quest Rework lined up, and has already cycled through limited runs such as the Backrooms Season and a Raid Revamp. Among all of that, Halloween is the dependable weekly draw that keeps the holiday content in rotation.

FAQ

What time is the Slop Tower Defense Halloween event in my timezone?

The Saturday windows open at 1:00 PM and 2:00 PM ET — that is 6:00–7:00 PM in the UK, 7:00–8:00 PM in Central Europe, 10:30–11:30 PM in India, and the early hours of Sunday in Japan and Australia — and the third window opens Sunday at 7:00 AM ET (11:00 AM UK, 4:30 PM India, 8:00 PM Japan, 10:00 PM in Australia).

How often is the Slop Tower Defense Halloween event?

Halloween runs weekly, opening across three time-of-day windows each cycle so players in different regions can all take part.

When is the next Slop Tower Defense Halloween event?

The next Halloween run is scheduled for Saturday, October 24 at 1 PM ET, and the live countdown to it sits on the card above.

What do you do in Slop Tower Defense Halloween?

You defend against a Halloween-themed wave of zombies across the game’s lanes during a limited window, working toward the event’s seasonal rewards before the slot closes until the next cycle.

Last updated October 19. We update this page as the schedule changes.