Pet Simulator 99 Diamond Mountain Guide (October 2026): Six Camps, the Abominable Yeti, and the Leaderboard Prizes
Posted: Fri Oct 23, 2026 5:03 pm
Quick Summary
Diamond Mountain is an event world layered on top of the normal Pet Simulator 99 map. You enter it, grab a free Marmot to start, and work upward through six camps. Every camp has its own egg, and BIG Games says plainly that the higher the camp, the stronger the pets inside it. That is the whole loop: hatch, send pets at the wall, collect Diamonds, move up, hatch something better.
There are 12 new ordinary pets across the six camp eggs. The summit egg carries the Abominable Yeti as its strongest hatch, and the Amber Markhor shows up in the top two eggs. Golden, Rainbow and Shiny versions of the camp pets are also in the pool, and those hit harder than the plain versions.
The wall mechanic is the part that surprises people. Assign pet stacks to a Rubble Wall and they keep smashing from anywhere, offline included. You do not stand next to a wall for an hour. You set it, go do something else, and come back to find it broken. BIG Games also says the upper walls get easier every day, which is a direct concession to players who joined after launch. What the developer has not published is any exact wall health figure or camp-by-camp unlock price, so do not trust a number you saw in a video description.
The Yeti, and the leaderboard that pays out by placement
The Abominable Yeti is a server-wide boss at the Diamond Summit. Everyone on the server contributes damage, your share decides your cut of the rewards, and having more players in the arena improves the party bonus for everyone. You have to be present for the kill or you miss the loot, which matters on a busy server where the boss can go down fast.
Feeding spare pets to the Yeti builds Yeti Power. BIG Games says each level brings more Diamonds and better big-pet odds, all the way up to Rainbow Shiny. Killing the boss also triggers what the update calls a Diamond Party in the arena.
The leaderboard is where the big prizes sit, and the brackets are exact:
Where every rare pet in the update actually comes from
This is the part most guides blur, because three different systems all hand out pets with overlapping names. Keep them separate.
How the reward routes compare
These boards do not support table BBCode, so the comparison is a bullet list, one row per route. Read it in this order when deciding where to spend an hour: trails pay out in bursts, expeditions pay out continuously, the Yeti pays out on a kill, and the Season Pass pays out on a fixed schedule.
Trails, expeditions, and the free Season Pass
Reaching the summit unlocks six secret trails. Each one is a line of chests you break with other players, and the final chest opens an egg with up to 300x luck. The target there is the Huge Climber Bear, with a chance at the Titanic Expedition Leopard on the last trail. Neither is guaranteed by finishing a route.
Expeditions are the background activity. Send your best pets out from the summit, and they bring back Diamonds and loot every hour, including while you are offline. Each expedition has a chance at the Huge Expedition Wolf. You unlock up to four pedestals with Acorns, and every pedestal is a separate chance per hour. The catch is that a full reward tray stops filling, so you have to actually claim it.
Acorns pay for six mountain upgrades: Wall Power, Wall Slots, Offline Hours, Acorn Finder, Trail Luck and Expedition Speed. Offline Hours is the one that is easy to mix up, because it applies to Rubble Wall progress while you are away, not to the expedition trays, which are hourly on their own. The Traveling Merchant wanders between camps selling Acorns and three mountain-only boost families (Acorns, Luck and Damage), with Tier II versions of each. His wagon moves, so a camp that had him an hour ago may not.
Free versus paid: what you can get without spending
The clan change that came with the update
Update 98 also cut the maximum clan size from 75 to 50. Diamonds spent on slots above 50 were refunded to clan banks, and full clans were trimmed with the lowest Diamond and clan battle contributors removed first. Players who got removed could create their own clan without a voucher until Sunday, October 18. There was no clan battle that week, which gave every clan room to settle into the new limit.
FAQ
Q: When did Diamond Mountain go live?
A: October 17, 2026, as Pet Simulator 99 Update 98 from BIG Games.
Q: Can I get the Gargantuan Abominable Yeti without finishing top five?
A: Yes. It is also a drop from feeding and fighting the Yeti boss itself. BIG Games has not published the drop probability for either route.
Q: Is the Huge Hiker Raccoon worth buying a pass for?
A: It is on the free track, not the paid one. Tier 4 of the free Season Pass is the milestone, and Season Tokens come from hatching, breaking loot and fighting the Yeti.
Q: Do Rubble Walls really work while I am offline?
A: Yes. BIG Games says walls keep smashing from anywhere, offline included, and that the top walls get easier each day. Offline Hours is a separate upgrade that extends that away progress.
Q: Which pets come from expeditions versus secret trails?
A: Huge Expedition Wolf comes from the hourly expeditions. Titanic Expedition Leopard comes from the final secret trail, and Huge Climber Bear comes from trail eggs generally. None of the three appears in the other activity.
Q: Do I need to be in the arena when the Yeti dies?
A: Yes. The update says to stay for the kill or you miss the loot, and more players in the arena raises the party bonus for everyone.
Q: What happened to clan slots above 50?
A: The cap dropped from 75 to 50, the Diamonds for the extra slots were refunded to clan banks, and full clans were trimmed with the lowest Diamond and clan battle contributors removed first. Removed players could start a clan without a voucher until Sunday, October 18.
Q: Are there codes for Pet Simulator 99 right now?
A: The update notes do not include any redemption codes, and I have not found a working list tied to Diamond Mountain. Treat any code being sold as a scam.
Sources
- BIG Games shipped Pet Simulator 99 Update 98 on October 17, 2026. The headline is Diamond Mountain: six camps, one egg in each, Rubble Walls to break on the way up, and an Abominable Yeti boss waiting at the summit.
- Walls keep taking damage while you are elsewhere, including offline. BIG Games also says the top walls get easier each day, so arriving late does not lock you out of the climb.
- The summit has three separate reward routes: six secret trails with chest eggs of up to 300x luck, hourly pet expeditions on up to four pedestals, and the server-wide Yeti fight with its own leaderboard.
- The Gargantuan Abominable Yeti is the rarest prize. You can chase it by feeding and fighting the boss, or by finishing in the top five on the Yeti Leaderboard.
- The one guaranteed Huge in the whole update is not a drop. It is the Huge Hiker Raccoon at Tier 4 of the free Season Pass.
- The same update cut the maximum clan size from 75 to 50 and refunded the Diamonds spent on the extra slots.
Diamond Mountain is an event world layered on top of the normal Pet Simulator 99 map. You enter it, grab a free Marmot to start, and work upward through six camps. Every camp has its own egg, and BIG Games says plainly that the higher the camp, the stronger the pets inside it. That is the whole loop: hatch, send pets at the wall, collect Diamonds, move up, hatch something better.
There are 12 new ordinary pets across the six camp eggs. The summit egg carries the Abominable Yeti as its strongest hatch, and the Amber Markhor shows up in the top two eggs. Golden, Rainbow and Shiny versions of the camp pets are also in the pool, and those hit harder than the plain versions.
The wall mechanic is the part that surprises people. Assign pet stacks to a Rubble Wall and they keep smashing from anywhere, offline included. You do not stand next to a wall for an hour. You set it, go do something else, and come back to find it broken. BIG Games also says the upper walls get easier every day, which is a direct concession to players who joined after launch. What the developer has not published is any exact wall health figure or camp-by-camp unlock price, so do not trust a number you saw in a video description.
The Yeti, and the leaderboard that pays out by placement
The Abominable Yeti is a server-wide boss at the Diamond Summit. Everyone on the server contributes damage, your share decides your cut of the rewards, and having more players in the arena improves the party bonus for everyone. You have to be present for the kill or you miss the loot, which matters on a busy server where the boss can go down fast.
Feeding spare pets to the Yeti builds Yeti Power. BIG Games says each level brings more Diamonds and better big-pet odds, all the way up to Rainbow Shiny. Killing the boss also triggers what the update calls a Diamond Party in the arena.
The leaderboard is where the big prizes sit, and the brackets are exact:
- 1st place: Rainbow Gargantuan Abominable Yeti
- 2nd to 5th: Gargantuan Abominable Yeti
- 6th to 8th: Rainbow Shiny Titanic Equinox Deer
- 9th to 15th: Golden Shiny Titanic Equinox Deer
- 16th to 105th: Rainbow Titanic Equinox Deer
- 106th to 255th: Shiny Titanic Equinox Deer
- 256th to 505th: Golden Titanic Equinox Deer
- 506th to 2,005th: Titanic Equinox Deer
- 2,006th to 10,000th: Huge Climber Goat
Where every rare pet in the update actually comes from
This is the part most guides blur, because three different systems all hand out pets with overlapping names. Keep them separate.
- Gargantuan Abominable Yeti: feed and fight the Yeti boss, or finish 1st to 5th on the Yeti Leaderboard
- Titanic Amber Markhor: feed and fight the Yeti boss
- Titanic Equinox Deer: Yeti Leaderboard placements, in several variants depending on your final rank
- Titanic Expedition Leopard: lucky drop on the final secret trail
- Huge Equinox Fox: feed and fight the Yeti boss
- Huge Climber Goat: Yeti Leaderboard, ranks 2,006 to 10,000
- Huge Climber Bear: lucky drop from secret trail eggs
- Huge Expedition Wolf: hourly expeditions at the summit
- Huge Hiker Red Panda: hatch the Diamond Summit egg
- Huge Hiker Raccoon: Tier 4 of the free Season Pass
How the reward routes compare
These boards do not support table BBCode, so the comparison is a bullet list, one row per route. Read it in this order when deciding where to spend an hour: trails pay out in bursts, expeditions pay out continuously, the Yeti pays out on a kill, and the Season Pass pays out on a fixed schedule.
- Climb (six camps): currency is Diamonds, you need it for everything else, no rare pet comes directly from the walls themselves. Source is the update notes and the Diamond Mountain route guide.
- Secret trails (six routes, summit only): chance at Huge Climber Bear and Titanic Expedition Leopard, final egg carries up to 300x luck. Burst payout, no rank required, no published drop rate.
- Expeditions (up to four pedestals): chance at Huge Expedition Wolf, rewards land every hour including offline, tray stops filling when full. Continuous payout, Acorn cost to unlock the extra pedestals.
- Yeti boss fight: chance at Gargantuan Abominable Yeti, Titanic Amber Markhor and Huge Equinox Fox. Burst payout, party bonus scales with how many players join, you must be present for the kill.
- Yeti Leaderboard: fixed placement prizes, Rainbow Gargantuan Abominable Yeti at 1st down to Huge Climber Goat at 2,006 to 10,000. Placement payout, only the top 10,000 are covered, no closing time published.
- Free Season Pass: Huge Hiker Raccoon at Tier 4. Guaranteed payout, the only fixed-milestone Huge in the update, tokens come from hatching, breaking loot and fighting the Yeti.
Trails, expeditions, and the free Season Pass
Reaching the summit unlocks six secret trails. Each one is a line of chests you break with other players, and the final chest opens an egg with up to 300x luck. The target there is the Huge Climber Bear, with a chance at the Titanic Expedition Leopard on the last trail. Neither is guaranteed by finishing a route.
Expeditions are the background activity. Send your best pets out from the summit, and they bring back Diamonds and loot every hour, including while you are offline. Each expedition has a chance at the Huge Expedition Wolf. You unlock up to four pedestals with Acorns, and every pedestal is a separate chance per hour. The catch is that a full reward tray stops filling, so you have to actually claim it.
Acorns pay for six mountain upgrades: Wall Power, Wall Slots, Offline Hours, Acorn Finder, Trail Luck and Expedition Speed. Offline Hours is the one that is easy to mix up, because it applies to Rubble Wall progress while you are away, not to the expedition trays, which are hourly on their own. The Traveling Merchant wanders between camps selling Acorns and three mountain-only boost families (Acorns, Luck and Damage), with Tier II versions of each. His wagon moves, so a camp that had him an hour ago may not.
Free versus paid: what you can get without spending
- Guaranteed free: Huge Hiker Raccoon at Tier 4 of the free Season Pass. Season Tokens come from hatching eggs, breaking loot and fighting the Yeti.
- Free but luck based: Huge Climber Bear from trails, Huge Expedition Wolf from expeditions, Huge Hiker Red Panda from the summit egg.
- Paid: Exclusive Remix Egg, Forever Pack and Equinox Pack. Remix Egg carries the Gargantuan Domino Dominus and Titanic Bingus Cat. Forever Pack carries the Titanic Expedition Dog, Huge Marmot and Gargantuan Broomstick Cat. Equinox Pack carries Luck and Acorns boosts, 10 million Diamonds, three Exclusive Remix Eggs and a Mega Ultimate Chest.
The clan change that came with the update
Update 98 also cut the maximum clan size from 75 to 50. Diamonds spent on slots above 50 were refunded to clan banks, and full clans were trimmed with the lowest Diamond and clan battle contributors removed first. Players who got removed could create their own clan without a voucher until Sunday, October 18. There was no clan battle that week, which gave every clan room to settle into the new limit.
FAQ
Q: When did Diamond Mountain go live?
A: October 17, 2026, as Pet Simulator 99 Update 98 from BIG Games.
Q: Can I get the Gargantuan Abominable Yeti without finishing top five?
A: Yes. It is also a drop from feeding and fighting the Yeti boss itself. BIG Games has not published the drop probability for either route.
Q: Is the Huge Hiker Raccoon worth buying a pass for?
A: It is on the free track, not the paid one. Tier 4 of the free Season Pass is the milestone, and Season Tokens come from hatching, breaking loot and fighting the Yeti.
Q: Do Rubble Walls really work while I am offline?
A: Yes. BIG Games says walls keep smashing from anywhere, offline included, and that the top walls get easier each day. Offline Hours is a separate upgrade that extends that away progress.
Q: Which pets come from expeditions versus secret trails?
A: Huge Expedition Wolf comes from the hourly expeditions. Titanic Expedition Leopard comes from the final secret trail, and Huge Climber Bear comes from trail eggs generally. None of the three appears in the other activity.
Q: Do I need to be in the arena when the Yeti dies?
A: Yes. The update says to stay for the kill or you miss the loot, and more players in the arena raises the party bonus for everyone.
Q: What happened to clan slots above 50?
A: The cap dropped from 75 to 50, the Diamonds for the extra slots were refunded to clan banks, and full clans were trimmed with the lowest Diamond and clan battle contributors removed first. Removed players could start a clan without a voucher until Sunday, October 18.
Q: Are there codes for Pet Simulator 99 right now?
A: The update notes do not include any redemption codes, and I have not found a working list tied to Diamond Mountain. Treat any code being sold as a scam.
Sources
- BIG Games: Diamond Mountain, the official Update 98 patch notes, October 17, 2026
- The Click: Pet Simulator 99 Diamond Mountain, summit route, Yeti, Acorns and all reward tables
- The Click: Pet Simulator 99 Yeti Leaderboard, all nine placement brackets
- The Click: Pet Simulator 99 Secret Trails, six routes and the two headline rare pets
- The Click: Pet Simulator 99 Expeditions, the four pedestals, the hourly tray and Huge Expedition Wolf
- The Click: Pet Simulator 99 Huge Hiker Raccoon, the free Season Pass Tier 4 reward
- BIG Games Index, the official Pet Simulator 99 database, pets, eggs and items
- UrGameTips: Pet Simulator 99 cuts clan capacity from 75 to 50
- Pet Simulator 99 on Roblox, official game page