Leaves begin to fall and the air gets crisp with the promise of frights, 2025 is shaping up to be one monster of a year for players of Pet Simulator 99. With official confirmations and leaked details circulating, the Halloween Event 2025 has the community buzzing with excitement. In this article, we’ll dive into the release date, major leaks, event mechanics, what to expect, how to prepare — and most importantly, how to make the most of your spooky adventure in Pet Simulator 99.
Release Date & Launch Details
The big question on every player’s mind: when does the Halloween Event start?
According to the official developer blog for Pet Simulator 99, the update titled “Pet Simulator 99 – Halloween Event!” is scheduled October 18, 2025.
Additional leak sources from fans and community posts also point to October 18 as the go-live date.
Key launch details:
- Date: October 18, 2025.
- Game update: the blog mentions the event begins “one hour after the update” kicks in.
- Entry: The Halloween world will be accessible from any world via the spawn area (according to the wiki page).
So mark your calendars; if you’ve been waiting for the next big seasonal update in Pet Simulator 99, this is it.
Major Leaks & Rumours: What the Community’s Found
A healthy dose of leaks and community chatter helps build the hype, and this year’s Halloween event has plenty of them. Here are the most significant ones.
Leaked announcement
A post from the X (formerly Twitter) account PetSimNews69 claimed:
“Pet Simulator 99 Halloween event will release next week, October 18th.”
This aligns with other sources, giving added credibility to the October 18 date.
Developer blog tease
The official blog for Pet Simulator 99 includes a post titled “HALLOWEEN! Haunted plots, trick-or-treating, spooky eggs & pets!”.
This is more than a hint — it confirms the theme and some of the major mechanics: haunted plots, trick-or-treating, eggs, and pets.
Wiki details
The Pet Simulator Wiki (Fandom) has a dedicated page for “Halloween Event 2025”, listing many of the expected features: event currency (“Halloween Candy”), eggs with increasing odds, multiple houses, and new pets.
Community speculation
Forums and reddit threads show players discussing returning mechanics (haunted world, cages/eggs) and hoping for new innovations. Some speculate this event might mark a strong comeback moment for the game.
In short: The leaks are consistent, the timeframe is solid, and the themes are clear: Halloween, spooky eggs, new pets. What remains unknown is the complete list of all new features, and how deep the event goes in terms of mechanics.
Event Mechanics: What We Know So Far
From official blog posts and the wiki page, several key mechanics for the Halloween 2025 event have emerged.
Halloween World & Haunted Plots
Players will enter a dedicated “Halloween World” accessible from any world’s spawn area. Within that world will be haunted plots/houses (the wiki lists “5 houses, each one better than the last”).
These houses are where you’ll trick-or-treat and collect event currency and eggs.
Event Currency: Halloween Candy
The event currency is “[Halloween Candy]” (as listed on the wiki).
This candy likely functions as a reward drop from houses/plots or possibly from completing event tasks.
Eggs, Hatching, and Crafting
The blog post details a rich egg/hatch/craft system:
- There are nine (9) different Halloween Eggs to find by trick-or-treating in the haunted houses.
- These eggs can be hatched on pedestals. Some eggs have stronger odds of rare pets.
- Crafting: Some pets can be crafted from other pets via a machine. The blog says: “Each one takes time, and patience, to complete.”
- Upgrade Machine: There’s an upgrade machine where you feed “Witch Hats” (which drop randomly) to improve your Halloween stats.
Quests & Rewards
Players will be able to complete Halloween-specific quests for exclusive rewards: items like a Glowy Booth, Broomstick, Hover-Broom-Board, etc.
Additionally, there is a Clan Battle mode with prizes for high-ranking clans.
Exclusive Shops, Raffles & Packs
Look out for limited-time items in the shop:
- Exclusive Shop Raffle: With chances to get rare pets (such as a Titanic Gilded Raven) and the new Gargantuan Skelemelon.
- Halloween Packs: These packs contain Spider Gifts, Huge/Exclusive pets, Halloween Luck items, raffle tickets, etc.
Duration & Limited Time
As with typical seasonal events, time is of the essence. The blog indicates the event and its items will be limited time only.
The wiki doesn’t specify an end date yet, but players should assume the event will not last beyond early November.
New Pets, Eggs & Rewards: The Haunting Highlights
Seasonal updates often shine because of the fresh content — this Halloween event is no exception. Here are the standout reveals and predictions.
New Eggs
The wiki lists several themed eggs that players will encounter:
- Pumpkin Egg – includes pets: Pumpkin Dog, Skeleton Snake, Zombie Pig, Evil Raven.
- Grave Egg – includes: Skeleton Snake, Zombie Pig, Evil Raven, Witch Wolf.
- Bat Egg – includes: Zombie Pig, Evil Raven, Witch Wolf, Mummy Cow, Frankenpup Dog.
- Ghost Egg – includes: Witch Wolf, Mummy Cow, Frankenpup Dog, Devil Tasmanian, Shark Cat.
- Cauldron Egg, Spider Egg, Reaper Egg, Coffin Egg, etc. (with further pets listed)
This catalogue gives strong indication: multiple eggs, each progressively more exclusive.
Rare & Limited Pets
From the official blog:
- Gargantuan Pet: Gargantuan Super Cat — available only during the “ADMIN ABUSE” moment of the event.
- Titanic Pets: Titanic Vampire Agony (from eggs), Titanic Specter Owl (crafted), Titanic Spectral Deer (Clan Battle reward), Titanic Noob (ADMIN ABUSE).
- Huge Pets: Huge Hacked Reaper, Huge Spectral Deer, Huge Vampire Agony – all hatched from eggs. Huge Evil Kitsune – crafted. Huge Devil Tasmanian, Huge Skelemelon – found in gift bag. Huge Mummy Cow – clan battle reward.
Other Event Rewards
- Hoverboards / Cosmetic Items: Broomstick, Hover-Broom-Board, Glowy Booth.
- Shop & Raffle Items: Titanics, Gargantuans, exclusive Easter-style packs.
- Exclusive Pets in Packs: For example, the “Halloween Pack” includes 10x Spider Gifts + guaranteed Huge Devil Tasmanian, Huge Skelemelon or Exclusive Candy Unicorn.
Predictions for Additional Surprises
Given the leak environment and developer blog hints, we can expect:
- Possibly new “exclusive eggs” never seen before (brainrot/theme crossover hinted).
- New hidden mechanics or bonus zones (e.g., back-rooms/haunted plots)
- Enhanced odds/upgrades tied to event currency — so those early collectors have an advantage.
How to Prepare: Tips for Players Ahead of Time
To make the most of this seasonal event, here are some actionable tips:
Log In Early & Stay Updated
Since the event begins one hour after the update per the dev blog, staying ready and checking your game early gives you a strong head-start.
Stockpile Resources
If you’ve been saving gems, eggs, or catalysts in the game, this might be the time to hold them until after the event drops so you can allocate them strategically.
Review Past Halloween Events
Understanding how previous events ran can help you plan better. The wiki shows last year’s Halloween event ran roughly mid-October to early November, with haunted zones and eggs.
Engage Your Clan
With a Clan Battle component announced, being part of an active clan will help you access the top-tier rewards (Titanics, etc). Coordinate with clan members now.
Plan for Limited Time
Most of these rewards are time-limited. Decide ahead which pets or items matter most to you (e.g., Gargantuan Super Cat) and go all-in accordingly.
Follow Official Channels
Follow the dev blog and trusted community channels (Discord, X/Twitter) in case of last-minute changes, surprise drops or hidden easter eggs. The blog has already teased “ADMIN ABUSE” and surprise mechanics.
Why This Event Matters for Pet Simulator 99’s Future
Beyond the fun of Halloween, this event holds significance for the game’s trajectory.
Re-engagement & New Content
After a period of fewer updates, a big seasonal event like this one re-energizes the player base, brings returning players back in, and helps attract new players. The dev blog and leaks show this event is more ambitious.
Testing New Features
The mechanics (crafting, haunted plots, upgrade machines) may act as test-beds for future content. If they’re well-received, they could become part of the regular game. That makes being among early adopters valuable.
Monetization & Player Retention
Limited-time packs, raffle items, exclusive pets = increased engagement and likely higher spend. From a business standpoint, they may lean heavily into these event mechanics to boost revenue — but if balanced well, they’ll also boost player satisfaction.
Community & Social Value
An event like this drives social interaction: players trade, collaborate in clans, show off rare pets. That builds community stickiness and long-term retention.
Frequently Asked Questions
When is the Pet Simulator 99 Halloween Event 2025 release date?
The Pet Simulator 99 Halloween Event 2025 is officially set to launch on October 18, 2025, according to the developers’ blog. The event will begin about one hour after the main update goes live, giving players access to the Halloween World, haunted plots, and exclusive rewards.
What new pets will be added during the Halloween Event 2025?
The event introduces several spooky-themed pets such as the Pumpkin Dog, Witch Wolf, Mummy Cow, Zombie Pig, Evil Raven, and Gargantuan Skelemelon. Players can also hatch Huge and Titanic pets like the Titanic Vampire Agony, Huge Spectral Deer, and Huge Devil Tasmanian from event-exclusive eggs and packs.
How do I earn Halloween Candy in Pet Simulator 99?
Halloween Candy is the event’s special currency. You can earn it by trick-or-treating at haunted houses, completing Halloween quests, and hatching special eggs within the Halloween World. Candy can be used to buy event-exclusive items, hatch pets, or upgrade stats through the new “Upgrade Machine.”
How long will the Halloween Event 2025 last?
While the developers haven’t given an exact end date, previous events suggest it will run for about two to three weeks, ending in early November 2025. Players should collect limited pets, candy, and rewards before the event disappears permanently.
How can I prepare for the Halloween Event in Pet Simulator 99?
To prepare, players should save gems and resources, join an active clan for Clan Battle rewards, and follow official Pet Simulator 99 channels for real-time updates. Logging in early on October 18 will give you a head start to explore haunted plots, earn candy faster, and hatch rare pets before others.
Conclusion
Halloween Event 2025 for Pet Simulator 99 is shaping up to be one of the most exciting seasonal drops yet: a confirmed start date of October 18, a haunted world full of new eggs and pets, crafting mechanics, upgrade machines, and high-stakes clan battles. Whether you’re a veteran player or returning after a hiatus, this event offers a strong reason to dive back in — and early preparation will give you the edge.
