How to Add Authentication to Your Godot Game in 5 Minutes

Adding player authentication to your Godot game doesn't have to be complicated. In this tutorial, we'll show you how to implement secure authentication in just 5 minutes using Godot BaaS.

Why Authentication Matters

Player authentication allows you to:

• Save player progress across devices
• Implement competitive features and leaderboards
• Prevent cheating and abuse
• Build a community around your game

Step 1: Install the Godot BaaS Plugin

First, download the Godot BaaS plugin from your dashboard and add it to your project's addons/godot_baas folder. Enable the plugin in Project → Settings → Plugins.

Step 2: Configure Your API Key

Get your API key from the Godot BaaS dashboard and add it to your game's main script:

extends Node

func _ready():
    GodotBaaS.api_key = "gb_live_your_key_here"
    GodotBaaS.authenticated.connect(_on_authenticated)
    GodotBaaS.auth_failed.connect(_on_auth_failed)

Step 3: Implement Device ID Login

The easiest way to get started is with device ID authentication. This allows players to start playing immediately without creating an account:

func login_player():
    GodotBaaS.login_with_device_id()

func _on_authenticated(player):
    # Player is now authenticated!
    print("Logged in as: ", player.id)
    # You can now use cloud saves, leaderboards, etc.

func _on_auth_failed(error):
    print("Authentication failed: ", error)

Step 4: Add Email/Password (Optional)

Want to let players create accounts? Add email/password authentication:

func register_player(email: String, password: String, username: String):
    GodotBaaS.register_with_email(email, password, username)

func login_with_email(email: String, password: String):
    GodotBaaS.login_with_email(email, password)

func upgrade_account(email: String, password: String, username: String):
    GodotBaaS.link_account(email, password, username)

Step 5: Link Accounts

Players can upgrade from device ID to email/password authentication on multiple devices:

func upgrade_account(email: String, password: String, username: String):
    GodotBaaS.link_account(email, password, username)

That's It!

You now have fully functional authentication in your Godot game. Your players can:

• ✓Start playing immediately with device ID
• ✓Upgrade to email/password for cross-device play
• ✓Have their saved progress automatically synced

Next Steps

Now that you have authentication set up, you can:

• →Implement cloud saves to sync player data
• →Add leaderboards for competition
• →Track player behavior with analytics