Pet Simulator 99 Update 100 launched on 31 October 2026 with Halloween Games, the Haunted Farm and a Forge that turns event pets into rare rewards. BIG Games has also added a new Season Pass, brought Halloween to PSX Classic and opened two competitive events.
The biggest change is how the activities work together. Halloween Games earn Treats, Midnight Gifts and Spirit Shards. The Haunted Farm uses a different currency, Candy Coins, for opening zones and hatching eggs. Playing the right activity for the reward you want is the quickest way to get going.
What’s new in Pet Simulator 99 Update 100?
Enter the haunted door to play six sequential spooky minigames against 40 players. Surviving for longer pays more Treats and Midnight Gifts, while the match winner receives a large pile of gifts. Every match finishes with Coffin Chairs: when the organ stops, get into an open coffin. The person who grabs the last coffin wins.
The patch also adds four Tricks, six Treat upgrades, the five-zone Haunted Farm, five zone eggs and the new Forge. BIG Games has improved Equip Best, repaired booth purchases and added a Security PIN option for protecting high-value pets.
Where to start with Pet Simulator 99 Update 100
Head for Halloween Games first if you want progress towards several rewards in one session. You earn Treats for upgrades, Spirit Shards for better Forge odds and Midnight Gifts containing loot. You do not have to win the entire match to receive rewards: better survival and high placements matter too.
Three named challenges are Scarecrow Stare, Tombstone Bridge and Monster Mash. The developer has shared a simple clue for each: freeze for the scarecrow, hop over tombstones and mash with monsters. The remaining stages are part of the six-game run, and every match ends with Coffin Chairs.
For pet hatching, switch to the Haunted Farm. Break candy for Candy Coins and spend them to unlock the five zones. Later zones have tougher breakables, so use your strongest team. The 12 regular Halloween Games pets deal additional damage on the farm, and BIG Games names Butler Penguin as the best of them.
Five Haunted Farm eggs and Treat upgrades
Pet Simulator 99 Update 100 includes the Straw Egg (Rare), Marble Egg (Epic), Poltergeist Egg (Legendary), Carousel Egg (Mythical) and Masquerade Egg (Mythical). There is one new egg in each farm zone. The final zone egg can hatch the Huge Guard Rhino. You will find one of these eggs in each zone, with Huge Guard Rhino available from the final egg.
Treats earned in the games buy six separate bonuses: Coin Finder, More Egg Luck, Huge Luck, More Gold, More Rainbow and Ooo Shiny. Candy Coins remain the farm’s unlock and hatch currency. Spirit Shards, meanwhile, affect Forge luck rather than the Treat upgrade tracks.
Forge and free Huge rewards
The Forge in Pet Simulator 99 Update 100 lets players brew pets into Huges. Its three listed Huge rewards are Guard Elephant, Trick Or Treat Piggy and Bedsheet Giraffe. The Forge also offers a shot at Titanic Neon Skeleton Cat and Gargantuan Butler Penguin. Spirit Shards improve your luck, and BIG Games says the Titanic supply is limited to 3,000, released a few every hour.
On the Season Pass page, complete event quests to earn Season Tokens. Tier 4 gives the Huge Guard Bat for free, while other rewards include the Treat Booth and Treat Hoverboard. The Huge Neon Skeleton Dino comes from Midnight Gifts. The Huge Witch Cat is a different prize, hatched from the Cursed Egg in PSX Classic’s returning 2021 Halloween area.
Pet Simulator 99 Update 100 leaderboard and trading deadlines
The Halloween Games leaderboard counts Treats and closes for scoring on 6 November 2026. The first three places get Gargantuan Butler Penguin; further tiers award Titanic Trick Or Treat Hippo variants and the Huge Frankenpet Monkey. The separate Ender Clan Battle runs for six days and has its own Gargantuan Warrior Wolf, Titanic Ender Goat and Huge Ender Bunny prize tiers.
Halloween Games pets remain untradable until 7 November. That date is a trading restriction, not a confirmed universal event end time. The Halloween Games leaderboard has its own 6 November scoring deadline.
Pet Simulator 99 Update 100 release date and status
Yes. BIG Games released Pet Simulator 99 Update 100 on Saturday 31 October. Its item index records version 27459 at 16:04 UTC, with 36 new pets, five new eggs and 26 changed items. It follows Update 99, which introduced PSX Classic, but the new Halloween Games, currencies and farm belong to this latest patch.
Start with Halloween Games for Treats and gifts, then work through the Haunted Farm to unlock eggs. Spirit Shards belong at the Forge. Our Halloween Huge pets guide lists each pet’s reward source.
Official source: BIG Games Pet Simulator 99 Update 100 patch notes.
