Making your first obby involves finding a reliable roblox kill brick script that actually works without a headache. It's essentially the bread and butter of any obstacle course you'll find on the platform. You want that glowing red lava or those spinning lasers to actually do something when a player accidentally brushes against them. Without a functioning script, your "lava" is just a harmless red block that people can sit on while they laugh at your level design.
If you're just starting out in Roblox Studio, the whole idea of "coding" might feel a bit intimidating. But honestly, the kill brick is one of the easiest things to learn. It's the perfect "Hello World" for game developers because it teaches you the basics of how parts interact with players. Once you get this down, you'll start seeing how everything else in Luau (Roblox's version of Lua) fits together.
Setting the Stage in Roblox Studio
Before we even touch the code, you need something for the script to live inside. Open up your project, toss a Part into the workspace, and give it a name like "LavaPart" or "KillBrick." Pro tip: make it bright red and set the material to Neon. It just looks right, doesn't it?
One thing that trips up a lot of beginners is forgetting to Anchor the part. If you don't anchor it, and it's floating in the air, it'll just fall through the floor as soon as you hit play. Once your part is positioned and looking dangerous, we're ready to add the logic.
The Standard Roblox Kill Brick Script
To add the script, just hover over your part in the Explorer window, click the plus icon, and select "Script." Delete that default "Hello World" line—we've got bigger fish to fry.
Here is the most basic version of a roblox kill brick script you can use:
```lua local trapPart = script.Parent
local function onTouch(hit) local character = hit.Parent local humanoid = character:FindFirstChild("Humanoid")
if humanoid then humanoid.Health = 0 end end
trapPart.Touched:Connect(onTouch) ```
Let's break that down in plain English. The first line tells the game, "Hey, look at the part this script is inside of." The onTouch function is where the magic happens. When something touches the brick (the hit), the script checks to see if that "something" belongs to a character that has a Humanoid. If it finds a humanoid, it sets their health to zero. Boom. Instant respawn.
Why Does This Script Work?
You might be wondering why we have to check for a Humanoid. Think about it: everything in your game can touch that brick. A falling ball, a stray hat, or even another part could trigger the script. If the script tried to "kill" a random wooden crate that doesn't have a health bar, the game would get confused and throw an error in your output log.
By using if humanoid then, we're basically saying, "Only run the killing part if the thing that touched us is actually a player or an NPC." It's a simple bit of "if-then" logic that keeps your game running smoothly without crashing or lagging out.
Making It Less "Instant"
Sometimes, you don't want a player to die the second they toe the line. Maybe you're building a poison swamp or a radioactive zone where the player should lose health gradually. You can easily tweak your roblox kill brick script to handle damage instead of an instant kill.
Instead of humanoid.Health = 0, you could write humanoid:TakeDamage(10).
The problem with doing just that is the Touched event fires fast. If a player stands on the block for even half a second, the event might fire thirty times, which still results in an instant death. To fix this, we use something called a "debounce." It's just a fancy word for a cooldown timer.
```lua local trapPart = script.Parent local canDamage = true
local function onTouch(hit) local humanoid = hit.Parent:FindFirstChild("Humanoid")
if humanoid and canDamage then canDamage = false humanoid:TakeDamage(20) task.wait(1) -- Wait one second before hurting them again canDamage = true end end
trapPart.Touched:Connect(onTouch) ```
This version is much more forgiving. It gives the player a chance to jump away before they lose all their health. It feels more like a "game" and less like a glitchy trap.
Adding Some Visual Flair
A good roblox kill brick script is even better when the brick looks the part. Don't just settle for a static block. You can make the brick pulse or change colors to warn players when it's active.
If you want to go the extra mile, you could add a sound effect that plays when a player gets hit. You'd just need to put a Sound object inside the part and call sound:Play() inside your function. It's those little details that make your game feel "pro" rather than something thrown together in five minutes.
Common Mistakes to Avoid
I've seen a lot of people get frustrated when their script doesn't work, and 99% of the time, it's one of three things:
- Case Sensitivity: Luau is picky. If you write
humanoidinstead ofHumanoid(with a capital H), the script will ignore it. Always double-check your capital letters! - The Parent-Child Relationship: Ensure the script is actually inside the part. If you accidentally put the script in the Workspace folder instead of inside the "LavaPart," the
script.Parentcommand will be looking at the whole world instead of your kill brick. - The Output Window: If things aren't working, open the Output window in Roblox Studio (View -> Output). It will usually tell you exactly which line is broken and why. It's like having a little assistant telling you where you messed up.
Dealing with "Kill All" Glitches
Occasionally, you might find a roblox kill brick script online that seems to kill everyone on the server at once. This usually happens because of a poorly written loop or a script that isn't properly localized to the part. Always stick to the Touched event linked to a specific script.Parent. It's the safest and most efficient way to handle collisions without causing server-wide lag.
Organizing Your Kill Bricks
Once your game gets big, you might have hundreds of kill bricks. Manually pasting a script into every single one is a nightmare. If you ever want to change the damage amount, you'd have to go through every single part!
To save yourself the trouble, you can use a for loop to apply the script to everything in a specific folder. Or, better yet, look into CollectionService. You can tag all your kill parts with a "Lava" tag and then have one single script that controls all of them. It's a bit more advanced, but it'll save you hours of work down the line.
Final Thoughts on Level Design
While the roblox kill brick script is a powerful tool, remember that balance is key. If you place your kill bricks in spots that feel unfair—like right at the end of a long jump where the player can't see them—people are going to get frustrated and leave.
Use your kill bricks to create challenge, not annoyance. Combine them with moving platforms, rotating beams, or disappearing floors to keep the gameplay fresh. Since you now know how to edit the damage and the timing, you can create different "difficulty zones" throughout your map.
Learning to script in Roblox is all about these small victories. Once you've mastered the kill brick, you're only a few steps away from making checkpoints, power-ups, and custom leaderboards. So, jump into Studio, get that script running, and see what kind of chaotic obstacle course you can dream up. Happy building!