Pokémon GO Halloween 2025 Part 1:Start Date, Greavard Debut & Costumed Gengar

Pokémon GO Halloween 2025 Part 1 Event: Start Date, New Ghosts & The Return of the Costumed Gengar! 🎃👻

There's a specific chill in the October air that has nothing to do with the temperature. It's the electric anticipation that crackles through the Pokémon GO community every fall. The Halloween Event isn't just another event; it's the Super Bowl for Ghost-type enthusiasts, the highlight of the annual calendar, and the one time it's socially acceptable to wander a park at midnight, phone in hand, hunting for digital phantoms.

The official details for Pokémon GO Halloween 2025: Part 1 have finally been revealed, and Niantic is delivering a spectacularly spooky start to the festivities. This isn't just a rehash of last year—we're getting new debuts, the return of a fan-favorite costume 'mon, and a narrative twist that promises a two-part story.

The buzz is already deafening. The hashtag #GOHalloween2025 is dominating Pokémon GO Twitter, with trainers sharing their hopes for shiny encounters and preparing their best Ghost-type raid teams. Google Trends shows a massive 450% spike in searches for "Pokémon GO Halloween event" as players scramble to get their inventories and Poké Balls ready.

As someone who has braved every Halloween event since the debut of the first Shiny Shuppet, I'm here to break down everything you need to know for Part 1, from the all-important dates to the meta-changing new Pokémon. Let's get spooky! 💀

🗓️ The Essential Intel: When to Mark Your Calendar

Timing is everything. Don't get caught without enough Pinap Berries!

· Event Start: Thursday, October 23, 2025, at 10:00 AM Local Time

· Event End: Thursday, October 30, 2025, at 8:00 PM Local Time

Pro Tip: ✅ This gives you a clear one-week window to grind Part 1 before Part 2 inevitably kicks off on Halloween itself. This structured approach is fantastic, as it allows players to focus on specific goals without being overwhelmed.

✨ The Headliners: What's New & Noteworthy

This is the real meat of the event. Part 1 is bringing some heavy hitters to the fog-covered streets.

· The Debut: Greavard and Houndstone! 🐕‍🦺💡

This is the biggest news. The adorable Ghost-type puppy, Greavard, will be making its worldwide Pokémon GO debut! It will be appearing in the wild and, for the first time, you'll be able to evolve it into the majestic and powerful Houndstone. This is a major meta-addition for both collectors and PvP enthusiasts.

· The Costumed Comeback: Costumed Gengar! 👻🎩

A fan-favorite is returning! The dapper Costumed Gengar (with its tiny, adorable witch's hat) is back and will be appearing in Three-Star Raids. This is your chance to catch a powerful one or finally get that shiny variant if RNG wasn't on your side last time.

· The Shiny Hunt: Shiny Phantump Debut! 🌳✨

For the shiny hunters, the small, haunted tree stump, Phantump, will be available as a shiny for the very first time! This is a fantastic and highly sought-after shiny that will be spawning in the wild. Get ready to check every single one!

🎁 Event Bonuses & Features

Niantic is sweetening the pot with some fantastic bonuses to help you on your ghostly grind:

· 2x Candy for transferring Pokémon. (Time to clean out that storage!)

· 2x Candy for catching Pokémon. (Essential for evolving new dex entries like Greavard.)

· Guaranteed Candy XL for trading Pokémon. (A huge bonus for players level 31 and above working on their Master League teams.)

· New Spooky Pose and Avatar Item available in the shop.

· Event-Themed Field Research that will reward you with encounters with Ghost-type Pokémon and extra resources.

📜 Special Research: "A Shadowy Threat"

A new, story-driven Special Research line will be available for free to all players. While the full details are under wraps, the title "A Shadowy Threat" and the key art suggest a focus on Team GO Rocket, likely hinting at a larger plot that will unfold in Part 2. Completing this research will yield valuable items and encounters to bolster your team.

⚔️ Raid & Wild Spawn Guide

· Wild Spawns: Look out for Gastly, Misdreavus, Shuppet, Duskull, Drifloon, Yamask, Phantump, Honedge, and Greavard.

· Raids:

· 1-Star: Sableye, Galarian Yamask, Phantump

· 3-Star: Costumed Gengar, Alolan Marowak, Drifblim

· 5-Star: [To be announced, but expect a Legendary Ghost or Dark-type!]

· Mega Raids: [To be announced, but Mega Banette or Mega Gengar are strong possibilities.]

🎯 Final Verdict: A Spooktacular Start

Part 1 of the Pokémon GO Halloween 2025 event is shaping up to be a can't-miss spectacle. With the debut of two new Pokémon, the return of a beloved costumed favorite, a new shiny, and excellent candy bonuses, Niantic has given us every reason to get out and explore the haunted landscape.

My advice? Clear your inventory now, stock up on Poké Balls and Raid Passes, and get ready to walk. A dark and rewarding adventure awaits.

Happy hunting, trainers! May your throws be accurate and your shinies be plentiful.