Between October 26th and November 1st, Pokémon Go's Halloween special has increased the spawn rate of the following Pokémon:

  • Drowzee
  • Hypno
  • Gastly
  • Haunter
  • Gengar
  • Zubat
  • Golbat
  • Meowth
  • Cubone
  • Marowak

I started an incubation of a 5km egg around the same time the event started, and the egg finally hatched into a Meowth.

Before my egg hatched I incubated another 5km egg, and since Eggs are predetermined, does my egg have a higher change of hatching one of the Pokémon with an increased spawn rate or are eggs not affected by the increased spawn rate?

  • Anecdotal evidence, but I have only hatched 2-3 tentacool, a clefairy, and a paras or two during this event.
    – Vemonus
    Commented Oct 31, 2016 at 17:21
  • Maybe edit your title to be more specific and match your real question within the body.
    – Jerry
    Commented Nov 1, 2016 at 1:16
  • @Jerry I had planned on it, but life got in the way. Thanks for the reminder Commented Nov 1, 2016 at 1:20

2 Answers 2


As far as I know (and confirmed by this website) the only thing that is modified is the number of candies you recieve by hatching the egg (which the range is doubled).

Hatching a Meowth during the event was just luck (or badluck depending on how you see it).

So to your question : "Are eggs affected by the Halloween event?"

Yes, by doubling the range of candies they give on hatch.

  • 1
    When hatching an egg, the range of possible candies received has doubled. I received an odd number of candy from an egg.
    – Jerry
    Commented Nov 1, 2016 at 1:31
  • @Jerry this happened to me as well. 13 candy for a Magikarp.
    – Vemonus
    Commented Nov 1, 2016 at 12:39
  • added the specification, but yeah, I thought that doubled was clear enough to be the range. My bad.
    – Karlyr
    Commented Nov 1, 2016 at 12:40

The species of the eggs which players had stockpiled prior to Halloween did not appear to be affected, in any of the numerous reports of hatch contents.

However: Eggs which were generated during the event were most assuredly affected by the spooky spawn table. Players who hatched many eggs ended up getting proportionally more Meowth and Ghastly.

  • Would the downvoter care to make their complaint?
    – Eikre
    Commented Nov 10, 2016 at 19:35

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