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Kids can build a first Roblox game in Roblox Studio by creating a small place and adding scripts one at a time. Roblox scripts use Luau, a language derived from Lua 5.1, so “beginner Lua scripts for Roblox” is a common search phrase—but the examples below use Luau in Studio. Start with a message in the Output window, then add a value, a condition, a function, a touch reaction, and a changing platform.
Roblox describes Studio as a free application for Windows and Mac. Create a Roblox account, install Studio, and open a new or existing place. These six snippets are a learning sequence; the official tutorials cover the concepts, but do not present this exact collection as a tested, ready-made project. Roblox’s Studio introduction has setup guidance.
Before you add a script: choose the right place for it
Studio’s Explorer shows a place as a hierarchy of objects. Parts are physical building blocks; scripts add behavior. A server-side Script can go in ServerScriptService, the location used in Roblox’s first-script tutorial. A LocalScript runs on the client, while a ModuleScript can be required by server or client scripts. Script type and location affect whether code runs as expected, so use the Explorer path given for each example. See Roblox’s data model guide for the object hierarchy.
The Tool Desk
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1. Print a message when the game starts
Where it goes
ServerScriptService > Script. Replace the default contents with:
print("Hello, game!")What to look for
Start a playtest and check Output for Hello, game!. This verifies that the server script ran. Output messages are different from text displayed to players in the game.
Try changing it
Change the words inside the quotation marks, then playtest again. If no message appears, confirm the script is a Script under ServerScriptService and check the Output window for errors.
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2. Store a value in a named variable
Where it goes
Use the same script in ServerScriptService, replacing its contents with:
local message = "Welcome to my game!
print(message)What to look for
Output should show the message stored in message. The word local makes this variable available in its current scope. Roblox recommends local variables in its scripting introduction.
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Try changing it
Edit the text after the equals sign and run the place again. The variable name can stay the same while its value changes.
3. Make a decision with a condition
Where it goes
Replace the script contents in ServerScriptService with:
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if coins >= 5 then
print("You have enough coins!")
else
print("Collect more coins.")
endWhat to look for
With coins set to 5, Output should show You have enough coins!. The if condition checks whether the value is at least five; otherwise the else branch runs. Conditions are covered in Roblox’s coding fundamentals.
Try changing it
Set coins to 2 and playtest to see the other message. This is only a code example: it does not create a coin counter or track a player’s coins.
4. Put an action in a function
Where it goes
Replace the script contents in ServerScriptService with:
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local function sayReady()
print("Ready to play!")
end
sayReady()What to look for
Output should show Ready to play!. The function groups an action under a name; the final line calls it. You can call the same function again rather than rewriting its contents.
Try changing it
Add another sayReady() line at the end and observe the message appear again. Functions and events are both part of Roblox’s beginner coding sequence in its coding fundamentals guide.
5. Make a part react when touched
Where it goes
-
In Explorer, add a
ParttoWorkspaceand give it a clear name such asTouchPart. -
Add a
Scriptinside that part, then use this code:local part = script.Parent local function onTouched(otherPart) print(otherPart.Name .. " touched the part!") end part.Touched:Connect(onTouched)
What to look for
Start a playtest and move a character into the part. Output should report the name of a touching part, often a character body part. The script connects a function to the part’s Touched event; event-and-function patterns let a game react when something happens instead of repeatedly checking in a loop. Roblox documents Touched and Connect() in its Events guide.
Try changing it
Replace the print line with part.BrickColor = BrickColor.new("Bright green") to change the part’s color when touched. You can also change the message. A touch event can fire more than once as different character parts make contact.
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6. Make a platform disappear briefly
Where it goes
-
Add a Part to
Workspace, make it large enough to stand on, and name itVanishingPlatform. -
Put a
Scriptinside the part and paste:local platform = script.Parent local busy = false local function onTouched(otherPart) if busy then return end busy = true platform.Transparency = 1 platform.CanCollide = false task.wait(2) platform.Transparency = 0 platform.CanCollide = true busy = false end platform.Touched:Connect(onTouched)
What to look for
During a playtest, touch the platform. It should become invisible and non-collidable for two seconds, then return. Transparency controls visibility and CanCollide controls whether physical objects can collide with the part. The busy flag prevents a second touch from starting another disappearance while the first is underway. Roblox’s introduction to scripting teaches changing part properties, including these platform behaviors.
Try changing it
Change task.wait(2) to task.wait(4) and compare how long the platform stays away. This simple effect is a starting point for a hazard or challenge; it does not add checkpoints, scores, or saved progress.
How to find and fix common problems
-
The script does not run: check that a server
Scriptis insideServerScriptServicefor the first four examples, or inside the intended Workspace part for the touch examples. ALocalScriptis not interchangeable with a serverScript.Recommended Free Tools
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There is no visible message: open Output during a playtest.
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A snippet shows an error: check quotation marks, parentheses, indentation, and matching
endstatements. Studio’s Script Editor includes autocomplete, syntax highlighting, static linting, type checking, and script analysis; use its diagnostics alongside Output. Roblox describes those tools on its Luau page. -
The part does not react: confirm the script is a child of the intended part and that you are touching that part during the playtest. Inspect Output for errors.
What to learn after these six scripts
Once the snippets make sense, continue from variables and objects to functions, events, conditionals, loops, tables, and organizing code. Roblox’s core curriculum moves on to broader gameplay work such as hazards, coins, leaderboard data, and connected upgrade buttons. Saving player data and handling purchases or client-server communication are later topics, not prerequisites for these first experiments.
Luau is Roblox Studio’s scripting language. It supports Lua 5.1 code, but Luau also has features that are not valid in Lua 5.1, so ordinary Lua tutorials may not map exactly to Roblox. The official Luau documentation explains the distinction.
Quick Recap
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