If you're trying to level up your game, getting a working roblox custom pet system script is one of those things that sounds simple but can get tricky fast. Most of the top-performing games on the platform, especially simulators, rely heavily on pets to keep players engaged. It's not just about having a little cube floating behind you; it's about the collection aspect, the stat boosts, and that feeling of progression.
If you've spent any time browsing the Toolbox, you've probably seen some messy scripts that break the moment you try to add a second pet. That's why building your own system—or at least understanding the logic behind a good one—is so important. You want something that's modular, won't lag the server, and actually saves the player's data when they leave.
Why a Good Pet Script Matters
Let's be real: players love companions. Whether it's a tiny dragon or a hovering piece of bread, pets give players a sense of companionship and a goal to work toward. From a developer's perspective, a roblox custom pet system script serves as a core gameplay loop. You have the hatching process, the inventory management, and the actual "following" mechanic.
If your script is clunky, the pets will jitter or get stuck on walls. If your data saving is bad, players will lose their rare pulls and never come back. So, getting the foundation right is the difference between a game that flops and one that actually builds a community.
Breaking Down the Follow Logic
The heart of any pet system is the movement. Back in the day, everyone used BodyPosition and BodyGyro. While those still work, they're technically deprecated now. Most modern developers have moved toward using AlignPosition and AlignOrientation.
When you're writing your roblox custom pet system script, you want the pet to follow the player smoothly. You don't want it exactly on top of the player's character, or it'll look like it's clipping through their head. You need to calculate an offset. Usually, this means taking the player's HumanoidRootPart position and adding a small Vector3 value to it, maybe slightly to the left and behind.
One trick I've found is to handle the movement on the Client rather than the Server. If the server handles 50 pets for 10 different players, it's going to start sweating. But if each client handles the movement of their own pets (and maybe the pets of people nearby), the game feels buttery smooth. You just use a RenderStepped loop or a Task.wait() loop to constantly update the pet's target position.
Handling the Inventory and Data
You can't have a roblox custom pet system script without a way to store what the player owns. This is where DataStoreService comes in. You essentially need a table that tracks which pets the player has unlocked, their levels, and which ones are currently "equipped."
A common mistake is saving the entire pet model. Don't do that. You only need to save a string (the pet's name) and maybe some numbers for stats. When the player joins, your script should look at that table and then pull the corresponding models from a folder in ServerStorage to spawn them in.
It's also worth looking into "ProfileService" or "MockDataStore" if you're worried about data loss. These are community-made tools that handle the heavy lifting of saving data safely, so you don't have to worry about players losing their hard-earned legendary cat.
Making the Hatching Experience Snappy
If you're adding a pet system, you're probably adding eggs too. The hatching sequence is where you can really show off. You don't need a super complex roblox custom pet system script for this part, but it needs to look good.
Think about the "dopamine hit." When the egg shakes and finally cracks open, you want some particles, a nice sound effect, and maybe a UI pop-up that shows the rarity. You can use TweenService to make the egg scale up and down before it "bursts." Even a simple script can feel premium if the timing is right.
Dealing with Multiple Pets
Once you have one pet following you, the next challenge is having two, three, or even five. If they all try to go to the same offset, they'll just overlap in a weird, glitchy mess.
To fix this, you need a bit of math. Most developers use a "circle" or "grid" formation. For example, if you have three pets, you calculate points in a semicircle behind the player. Your roblox custom pet system script should loop through the "Equipped" folder and assign each pet a specific index, which then determines its offset from the player. It sounds complicated, but it's basically just telling Pet A to go to "Back-Left" and Pet B to go to "Back-Right."
Performance Optimization Tips
One thing people often forget is that pets are parts, and parts have physics. If you have 50 pets in a server and they all have active collisions, things are going to get laggy.
- Turn off CanCollide: Your pets should never bump into the player or each other.
- Use Massiveless: Set the
Masslessproperty to true on all pet parts so they don't weigh the player down. - Limit the count: Don't let players equip 50 pets at once. Most games cap it at 3 or 5 for a reason.
Also, try to use StreamingEnabled. If a player is all the way across the map, you don't need their pets to be fully rendered and moving for everyone else. Roblox's engine is pretty good at handling this, but it helps to keep your scripts efficient.
Customizing Your Pets
The "custom" part of a roblox custom pet system script is what makes it yours. Maybe your pets give a multiplier to coins, or maybe they have special abilities like "magnetism" to pull in nearby items.
You can set this up by adding an Attributes or Configuration folder inside each pet model. Your main game scripts can then check these values. For instance, if a player picks up a coin, the script checks: "Does the player have an equipped pet with a 2x multiplier?" If yes, it doubles the reward. It makes the pets feel like a functional part of the game rather than just a cosmetic accessory.
UI for the Pet System
A script is only half the battle; the UI is the other half. You need a clean scrollable frame where players can see their collection. Each button in the UI should probably be generated dynamically by your roblox custom pet system script based on the player's data.
When a player clicks "Equip," the UI should fire a RemoteEvent to the server. The server then checks if the player actually owns that pet, and if so, it clones the model and puts it behind them. Always remember to do your checks on the server! If you let the client decide what pet they have equipped, hackers will be walking around with "Developer-only" pets in five minutes.
Keeping it Simple
If you're just starting out, don't try to build the world's most complex pet system on day one. Start with a basic script that spawns a part and makes it follow you. Once that works, add the saving logic. Once that's solid, move on to the UI.
There are plenty of resources out there, but writing your own roblox custom pet system script from scratch is the best way to ensure you know exactly how to fix it when something goes wrong. Plus, you won't be stuck with a bunch of "bloated" code that you don't understand.
It takes a bit of trial and error—especially getting the pet to stop spinning wildly when the player turns—but once it's working, it adds so much value to your project. Just keep testing, keep tweaking the offsets, and make sure your DataStores are solid. You'll have a professional-feeling system in no time.