Implementing Online Leaderboards in Your Godot Game Using LootLocker

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Johannes Fornaeus4 min read
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We believe great games can come from anywhere - regardless of team size, location, funding, or choice of engine. In fact, it's thanks to new game engines that many people first get involved in game development. Because of that, we want to make sure every game developer has access to the full toolbox of LootLocker features and are working on integrations for all popular game engines, including Godot.

While creating an SDK for each engine will take some time, we didn't want to keep you waiting, so we've written this guide to get you set up with everyone's favorite online leaderboards.

Before You Start

In this example we will use GDScript to implement LootLocker in Godot and demonstrate:

  • Authenticating a player
  • Handling a returning player
  • Retrieving leaderboard data
  • Uploading a leaderboard score

From there, you can use this code as a base and build upon it however you like.

Creating the Leaderboard in LootLocker

Before diving into Godot and writing some code, let's start by creating a free LootLocker account, setting up our game in LootLocker, and creating the leaderboard in the LootLocker dashboard. This only takes a few minutes.

  1. Create your free LootLocker account by signing up or following our guide. Follow the steps after creating your account to create your first game.
  2. Create a leaderboard by navigating to Systems, and then Leaderboards. Click the Create button create a leaderboard.
  3. Fill in the the following information and click Save

Implementing Your Leaderboard in Godot

Now it's time implement the LootLocker leaderboard directly in Godot.

  1. Add a new script in Godot and paste in the following code
  • Replace your-game-api-key with your game api key, found on the LootLocker dashboard. You can locate this by navigating to the API tab in Game Settings.
  • Replace your-leaderboard-key with your leaderboard key that you see next to the leaderboard you created earlier in the guide in the LootLocker leaderboard menu.
  • The script will output a formatted list of the high scores in the console, you can hook it up to a Label-node to display them on screen.
    • When pressing "ui_up"(up arrow); increase score by 1
    • When pressing "ui_down"(down arrow); decrease score by 1
    • When pressing "ui_accept"(Enter); Upload current score to leaderboard
    • When pressing "ui_select" (Spacebar); Refresh leaderboards
    1. Use and/or build upon the provided functions
    • func _authentication_request()
      • Authenticate player, must be used before making any additional calls
    • _get_leaderboards()
      • Get the leaderboard with the current leaderboardKey
    • func _upload_score(var score)
      • Upload score to the current leaderboard with the currently logged in player
    1. That's it, now it's up to you to make an awesome game!

    Setting Players Names

    Currently each leaderboard entry will use the Player ID, but you might wish to let the player set a name so it's more clear who they are on the leaderboard. This can be done by adding the following code to your project. Between lines 133 and 157 you can see the functions we've added for getting and setting the player's name.

    Switching Between Stage and Live Environments

    Everything we've done so far has been in the Stage environment. When you're ready launch your game, it's wise to point players towards the Live environment. LootLocker comes with these two environments so that you can test and tweak your game in in the Stage environment without affecting your players in the Live environment.

    You can switch between environments easily by doing the following steps.

    1. Create a new leaderboard for the Live environment on the LootLocker Dashboard by clicking on the environment switcher in the bottom left corner of the LootLocker dashboard. Use the same leaderboardKey as with the leaderboard from the previous steps.
    2. Change developmentMode to false in the authentication script we pasted into your project earlier in this guide.
    3. Release your game!

    Let LootLocker Level Up Your Game Even More

    Now that you've got LootLocker leaderboards implemented in your game, it's time to add a few more features to your game, like player progression or unlockable cosmetics and items. These all come out of the box, ready to be added to your game. Check out all of our available features on our website, and their corresponding REST APIs in our reference documentation.

    And of course, if you're stuck - we're always here to help. Reach out to us or better yet, join us on Discord.

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