How to Transfer Parameters Data Between Android Apps and Construct 3 Games

URL parameters are a powerful way to pass data into your Construct 3 games and web applications. Whether you want to load a specific level, change game modes, pass player information, or connect your game to an Android app, URL parameters provide a simple and effective solution.

In this tutorial, you’ll learn how to read URL parameters in Construct 3 using the Browser object and the QueryParam expression.

What Are URL Parameters?

URL parameters, also known as query parameters, are values added to the end of a URL after a question mark (?).

Example:

https://yourgame.com/index.html?level=5&mode=easy

In this example:

• level = 5
• mode = easy

These values can be read and used inside your Construct 3 project.

Why Use URL Parameters in Construct 3?

URL parameters are useful for:

• Loading specific game levels
• Changing difficulty modes
• Passing player names
• Sending scores
• Loading profile photos
• Language selection
• Android app integration
• Smart TV applications
• User authentication

They allow external applications and websites to communicate directly with your Construct 3 project.

Step 1: Add the Browser Object

Open your Construct 3 project.

Insert the Browser object into your project.

The Browser object provides access to URL information and allows you to read query parameters from the current page.

Step 2: Create Global Variables

Create two global variables:

Global Number

level

Global String

mode

These variables will store values received from the URL.

Step 3: Read URL Parameters

Go to your Event Sheet.

Create the following event:

On Start of Layout

Set the level variable:

level = Browser.QueryParam("level")

Set the mode variable:

mode = Browser.QueryParam("mode")

When the layout starts, Construct 3 will automatically read the values from the URL and store them in the variables.

Step 4: Display the Values

To verify everything is working correctly, create two Text objects.

For the first text object:

Set Text to level

For the second text object:

Set Text to mode

This allows you to see the values received from the URL.

Step 5: Test the Project

Preview your project and add parameters to the URL.

Example:

index.html?level=5&mode=easy

Construct 3 will read:

level = 5
mode = easy

The text objects should display these values on screen.

Passing Multiple Parameters

You can pass as many parameters as needed.

Example:

index.html?name=Virendra&photo=avatar.png&score=2500&level=10&mode=hard

Read them using:

Browser.QueryParam("name")
Browser.QueryParam("photo")
Browser.QueryParam("score")
Browser.QueryParam("level")
Browser.QueryParam("mode")

Connecting Android Apps to Construct 3

One of the most useful applications of URL parameters is Android integration.

An Android app can launch a Construct 3 game and pass information such as:

• Player Name
• Profile Photo
• Score
• Coins
• Current Level
• Language
• User ID

When the game starts, Construct 3 automatically reads the values and customizes the experience for the player.

This makes URL parameters perfect for Android WebView applications and hybrid mobile projects.

Common Use Cases

Load a Specific Level

?level=15

Set Game Difficulty

?mode=hard

Pass Player Name

?name=PlayerOne

Send Score

?score=5000

Enable Smart TV Mode

?mode=tv

Conclusion

URL parameters are an easy and powerful way to pass data into Construct 3 projects. By using the Browser object’s QueryParam expression, you can read values directly from the URL and use them to control gameplay, load content, personalize experiences, and integrate with Android apps or external platforms.

Whether you’re building HTML5 games, web applications, Smart TV apps, or Android integrations, URL parameters are a feature every Construct 3 developer should know.