If you want to pet simulator 99 auto farm gems without spending every waking hour glued to your screen, you've probably realized that Diamonds are the actual currency that runs the show. Let's be real: trying to save up for a Huge pet or a high-tier Enchant by just playing "normally" feels like trying to empty the ocean with a spoon. You need a strategy that works while you're sleeping or busy doing literally anything else.
The transition from Pet Simulator X to PS99 changed a lot of things, but the core grind remains the same. Gems (or Diamonds, whatever you prefer to call them) are how you progress. Without them, you're stuck with basic pets and weak enchants. So, how do you actually set up a farm that brings in millions while you're away? It's not just about standing in the last area; it's about the synergy of your loadout.
Getting the right setup for AFK farming
Before you even think about leaving your computer on overnight, you have to look at your Enchants. This is where most people mess up. They just slap on whatever "Diamond" books they have and hope for the best. But there's a thing called diminishing returns in this game. If you stack four Diamond VII books, you aren't actually getting four times the rewards. The game caps the effectiveness after a certain point.
Usually, you want to run two high-level Diamond books, one or two Treasure Hunter books (because more item drops mean more stuff to sell for gems later), and definitely a Magnet enchant. If you aren't using a Magnet enchant, your pets are breaking breakables and the loot is just sitting there until it despawns. That's literally throwing money away. If you have the Magnet Gamepass, you can skip the book, but for the rest of us, that enchant slot is mandatory.
Also, don't sleep on Criticals or Strength books. Why? Because the faster you break things, the faster the game spawns new stuff. If it takes your pets ten seconds to break a large diamond chest, you're losing efficiency. You want them snapping through breakables like they aren't even there.
The power of potions and fruits
You might think saving your potions for "later" is a good idea, but later is now. If you're going to pet simulator 99 auto farm gems for eight hours while you sleep, you need to pop those Diamond potions. I usually try to tier them up as high as possible before a long session.
Fruits are another big one. If you have a decent mastery level, your fruits last longer and give better buffs. Oranges and Apples are great for general damage and coin, but those Bananas and Pineapples really help with the drop rates and overall speed. If you have an auto-clicker set up, you can even have it occasionally click a "fruit bundle" if you're fancy, but usually, just eating a stack before you go AFK is enough to give you a massive head start.
Where should you actually stand?
It sounds obvious, but you should always be in the highest area you have unlocked. The multiplier for gems is significantly higher in the final zones. However, there's a catch. If the final zone is currently crowded with 10 other people, you might actually make less money because everyone is competing for the same breakables.
Sometimes, it's worth hopping servers until you find one that's relatively empty, or better yet, using a private server if you have access to one. In a private server, all the spawns are yours. When those massive diamond jars or lucky blocks drop, you're the only one getting the rewards. That makes a huge difference over a 12-hour period.
Using Alt accounts to multiply your gains
If you're serious about this, one account usually isn't enough. Many pro players use "Alts" to pet simulator 99 auto farm gems in different ways. You could have your main account in the final area doing the heavy lifting, while an alt account sits in the Diamond Mine.
The Diamond Mine is a bit of a grind to unlock, and it requires those tickets, but it's a guaranteed source of income. Even a basic alt account with some decent pets can pull in a few hundred thousand gems while you're focused on other things. Just remember that running multiple accounts requires a bit more hardware power, and you'll need a way to keep them all from disconnecting.
The "Auto" part of the farm
Roblox has a pesky habit of kicking you for inactivity after 20 minutes. To truly "auto farm," you need a way to stay active. Most people use a simple auto-clicker. You just set it to click once every minute or so. This keeps your session alive.
But if you want to be more efficient, you should position your character so that the auto-clicker is also interacting with the world. For example, if you're hatching eggs while farming (which is totally possible in PS99), your auto-clicker can keep the hatch going while your pets do the work in the background. Just make sure your inventory isn't going to full-up and stop the process.
Don't ignore the items you drop
While the goal is to pet simulator 99 auto farm gems directly, a huge portion of your wealth actually comes from the items your pets pick up. Enchants, potions, stat pets, and even those little gift boxes add up.
Every morning after an AFK session, I head straight to the Trading Plaza. Those "junk" items you picked up? Someone wants to buy them in bulk. Selling 500 low-tier potions or a thousand fruit might seem like a chore, but that's often where your extra million gems come from. It's an indirect way of farming gems, but it's often more lucrative than the raw diamonds you get from the ground.
Managing your expectations
Look, you're probably not going to wake up with 50 million gems after one night unless you have a full team of Huge pets and top-tier Titanic enchants. It's a progression. You use the gems you farm tonight to buy better enchants, which helps you farm more gems tomorrow.
A common mistake is spending gems as soon as you get them on "hype" items. If you want to build a real empire in PS99, reinvest in your farming setup first. Buy that extra Enchant slot. Get the better Diamond books. Upgrade your potions. Once your "engine" is running at max speed, then you start saving for the cosmetics and the flex pets.
Is it safe to auto farm?
People always ask if you can get banned for this. If you're using basic auto-clickers or just staying AFK with an exploit-free method, you're generally fine. Big Games (the developers) have actually built "Auto-Hatch" and "Auto-Farm" features into the game itself (usually behind a small paywall or rank requirement). They know people want to play this way.
The only time you run into trouble is if you start using third-party scripts that teleport your character or manipulate the game's code. Don't do that. It ruins the fun and puts your account at risk. Stick to the legitimate methods: good enchants, smart positioning, and a simple way to stay logged in.
Final thoughts on the grind
At the end of the day, to pet simulator 99 auto farm gems effectively, you just need consistency. Set up your character before you head out for the day or go to bed. Make sure your pets are equipped with the best stuff you've got, and check your internet connection so you don't find out you disconnected five minutes after you left.
It might feel slow at first, but once you hit that "sweet spot" where your pets are inst-breaking everything in the last zone, the gems start piling up faster than you can spend them. Just keep at it, keep upgrading your loadout, and eventually, that Huge pet in the Trading Plaza won't look so unaffordable after all. Happy farming!