1. Introduction

In this tutorial, we aim to guide you on how to implement in-app purchases and ads in your HTML game. You'll learn the essentials of integrating ad networks and in-app purchases, which will enable you to monetize your game and provide extra features or content to your users.

What you will learn:

• How to integrate an ad network into your HTML game
• How to set up in-app purchases
• Best practices for implementing ads and in-app purchases

Prerequisites:

• Basic knowledge of HTML, CSS, and JavaScript
• Familiarity with game development is a plus but not mandatory

2. Step-by-Step Guide

Integrating Ads

1. Select an Ad Network: Choose an ad network that supports HTML games. Google AdSense is a popular choice.

2. Create an Ad Unit: After you've registered, create an ad unit in your ad network's dashboard.

3. Implement the Ad Code: The ad network will provide a script that you can directly insert into your HTML game's code.

Setting Up In-App Purchases

1. Choose a Payment Processor: You'll need a payment processor to handle transactions. Google Play Billing and Apple's In-App Purchase are common choices.

2. Create a Product: Set up a product (e.g., game currency, unlockable content) in your payment processor's dashboard.

3. Implement the Purchase Code: You'll integrate the payment processor's code into your game, allowing users to make purchases.

3. Code Examples

Implementing an AdSense ad:

<!-- Replace 'your-ad-unit' with the ID provided by AdSense -->
<script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>
<ins class="adsbygoogle"
     style="display:block"
     data-ad-client="your-ad-client"
     data-ad-slot="your-ad-slot"
     data-ad-format="auto"
     data-full-width-responsive="true"></ins>
<script>
     (adsbygoogle = window.adsbygoogle || []).push({});
</script>

For in-app purchases, the code will vary depending on your payment processor. Here's an example using Google Play Billing:

// Replace 'your-product-id' with your product's ID
var productID = 'your-product-id';

// Request a purchase
playBilling.purchase(productID)
  .then(function(purchase) {
    // Purchase successful - provide the user with their purchase
    unlockContent(purchase);
  })
  .catch(function(error) {
    // Purchase failed - show an error to the user
    showError(error);
  });

function unlockContent(purchase) {
  // Logic to unlock content goes here
}

function showError(error) {
  // Logic to show an error message goes here
}

4. Summary

You've learned how to integrate ads and in-app purchases into your HTML game. This will allow you to monetize your game and provide extra content or features to your users.

Next steps:

• Experiment with different ad placements and in-app purchase prices
• Learn more about game development and monetization strategies

Additional resources:

• Google AdSense
• Google Play Billing

5. Practice Exercises

1. Exercise 1: Implement a banner ad in your HTML game.

2. Tip: Use the AdSense code provided above, replacing 'your-ad-unit' with your ad unit's ID.

3. Exercise 2: Implement an in-app purchase that unlocks a new level.

4. Tip: Use the Google Play Billing code provided above, replacing 'your-product-id' with your product's ID.

5. Exercise 3: Implement a 'remove ads' in-app purchase.

6. Tip: You'll need to add logic to stop showing ads when the purchase is made.