Roblox Lua Tutorial: Complete Scripting Guide for Beginners (2026)
Roblox Lua Tutorial: Complete Scripting Guide
Chapter 1: Lua Basics
Variables & Types
local name = "Player1" -- string
local score = 100 -- number
local isAlive = true -- boolean
local inventory = {} -- table
local nothing = nil -- nil
Functions
local function calculateDamage(baseDamage, multiplier)
return baseDamage * multiplier
end
local damage = calculateDamage(50, 1.5) -- 75
Tables (Arrays & Dictionaries)
-- Array
local fruits = {"Apple", "Banana", "Cherry"}
-- Dictionary
local playerData = {
coins = 100,
level = 5,
inventory = {}
}
Chapter 2: Roblox-Specific Lua
Services
local Players = game:GetService("Players")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local ServerStorage = game:GetService("ServerStorage")
local DataStoreService = game:GetService("DataStoreService")
Events
Players.PlayerAdded:Connect(function(player)
print(player.Name .. " joined!")
end)
part.Touched:Connect(function(hit)
local humanoid = hit.Parent:FindFirstChild("Humanoid")
if humanoid then
humanoid:TakeDamage(25)
end
end)
Chapter 3: Client-Server Architecture
RemoteEvents (Server → Client)
-- Server
local remoteEvent = ReplicatedStorage.MyEvent
remoteEvent:FireClient(player, "Hello!")
-- Client
remoteEvent.OnClientEvent:Connect(function(message)
print(message) -- "Hello!"
end)
RemoteFunctions (Client → Server)
-- Server
local remoteFunc = ReplicatedStorage.MyFunction
remoteFunc.OnServerInvoke = function(player, item)
-- Process purchase
return true
end
-- Client
local success = remoteFunc:InvokeServer("Sword")
Chapter 4: DataStore
local DataStoreService = game:GetService("DataStoreService")
local playerStore = DataStoreService:GetDataStore("PlayerSaves")
local function saveData(player)
local key = "Player_" .. player.UserId
local success, err = pcall(function()
playerStore:SetAsync(key, {
coins = player.leaderstats.Coins.Value,
stage = player.leaderstats.Stage.Value,
})
end)
end
The Truth About Learning Lua
This tutorial covers the basics. To actually build a complete, monetizable Roblox game, you need to master:
- Advanced OOP patterns
- Module scripts
- Coroutines & task library
- TweenService for animations
- MarketplaceService for monetization
- ContextActionService for input
- CollectionService for tagging
- PathfindingService for NPC AI
- Memory optimization
- Network optimization
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