Mini-Project 2 - Countdown Timer

Step 1: Create a Screen GUI

GUI stands for "Graphical User Interface" - it's the stuff players see on their screen, like health bars and timers!

• In Explorer, find "StarterGui" (it's near the top)
• Right-click StarterGui → Insert Object → ScreenGui
• Right-click ScreenGui → Insert Object → TextLabel
• Select the TextLabel and set these Properties:

Step 2: Create the Timer Script

Now we need a script to make the timer count down. Add a Script to ServerScriptService (NOT inside the GUI).

• Find "ServerScriptService" in Explorer
• Right-click → Insert Object → Script
• Name it "TimerScript"
• Add this code:

-- Timer Script
local ReplicatedStorage = game:GetService("ReplicatedStorage")

-- Create a value all players can see
local timerValue = Instance.new("IntValue")
timerValue.Name = "GameTimer"
timerValue.Value = 30
timerValue.Parent = ReplicatedStorage

-- Countdown function
local function startCountdown(seconds)
    for i = seconds, 0, -1 do
        timerValue.Value = i
        wait(1)
    end
    print("Timer finished!")
end

-- Wait for game to load, then start
wait(3)
startCountdown(30)

Step 3: Make the Label Show the Timer

Add a LocalScript inside the TimerLabel to update the display:

• Right-click TimerLabel → Insert Object → LocalScript
• Add this code:

-- Update timer display
local label = script.Parent
local ReplicatedStorage = game:GetService("ReplicatedStorage")

-- Wait for the timer value to exist
local timerValue = ReplicatedStorage:WaitForChild("GameTimer")

-- Update whenever it changes
timerValue.Changed:Connect(function(newValue)
    label.Text = tostring(newValue)

    -- Make it red when time is low!
    if newValue <= 5 then
        label.TextColor3 = Color3.fromRGB(255, 0, 0)
    else
        label.TextColor3 = Color3.fromRGB(255, 255, 255)
    end
end)

Scripts vs LocalScripts - Important!