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<topic_start>Casual Games Toolkit
The Flutter Casual Games Toolkit pulls together new and existing resources
so you can accelerate development of games on mobile platforms.This page outlines where you can find these available resources.<topic_end>
<topic_start>
Why Flutter for games?
The Flutter framework can create performant apps for six target platforms
from the desktop to mobile devices to the web.With Flutter’s benefits of cross-platform development, performance, and
open source licensing, it makes a great choice for games.Casual games fall into two categories: turn-based games
and real-time games.
You might be familiar with both types of games,
though perhaps you didn’t think about them in quite this way.Turn-based games cover games meant for a mass market with
simple rules and gameplay.
This includes board games, card games, puzzles, and strategy games.
These games respond to simple user input,
like tapping on a card or entering a number or letter.
These games are well suited for Flutter.Real-time games cover games a series of actions require real time responses.
These include endless runner games, racing games, and so on.
You might want to create a game with advanced features like collision detection,
camera views, game loops, and the like.
These types of games could use an open source game engine like the
Flame game engine built using Flutter.<topic_end>
<topic_start>
What’s included in the toolkit
The Casual Games Toolkit provides the following free resources.A repository that includes three new game templates that provide
a starting point for building a casual game.A base game template
that includes the basics for:A card game template
that includes everything in the base template plus:An endless runner template created in partnership
with the open source game engine, Flame. It implements:A sample game built on top of the endless runner template,
called SuperDash. You can play the game on iOS, Android,
or web, view the open source code repo, or
read how the game was created in 6 weeks.The included game templates and cookbook recipes make certain choices
to accelerate development.
They include specific packages, like provider, google_mobile_ads,
in_app_purchase, audioplayers, crashlytics, and games_services.
If you prefer other packages, you can change the code to use them.The Flutter team understands that monetization might be a future consideration.
Cookbook recipes for advertising and in-app purchases have been added.As explained on the Games page,
you can leverage up to $900 in offers when you integrate Google services,
such as Cloud, Firebase, and Ads, into your game.error Important
Terms and conditions apply.
You must connect your Firebase and GCP accounts to use credits for
Firebase services and verify your business email during sign up to earn
an additional $100 on top of the normal $300 credit.
For the Ads offer, check your region’s eligibility.<topic_end>
<topic_start>
Get started
Are you ready? To get started:Review the README file for the first type of game you want to create.Review the codelabs and cookbook recipes.<topic_end>
<topic_start>
Example games
For Google I/O 2022, both the Flutter team and Very Good Ventures created new
games.VGV created the I/O Pinball game using the Flame engine.
To learn about this game,
check out I/O Pinball Powered by Flutter and Firebase on Medium
and play the game in your browser.The Flutter team created I/O Flip, a virtual CCG.
To learn more about I/O Flip,
check out How It’s Made: I/O FLIP adds a twist to a classic card game with generative AI
on the Google Developers blog and play the game in your browser.<topic_end>
<topic_start>
Other resources
Once you feel ready to go beyond these games templates,
investigate other resources that our community recommended.package_2 Flutter package
api API documentation
science Codelab
book_5 Cookbook recipe
handyman Desktop application
photo_album Game assets
quick_reference_all Guidebook_5 Special effects
handyman Spriter Pro
package_2 rive
package_2 spriteWidgetpackage_2 app_reviewpackage_2 audioplayersscience User Authentication using Firebasescience Add Firebase to your Flutter gamequick_reference_all Firebase Crashlytics overview
package_2 firebase_crashlyticspackage_2 win32_gamepadphoto_album CraftPix
photo_album Game Developer Studio
handyman GIMPpackage_2 Flame
package_2 Bonfire
package_2 forge2dbook_5 Add achievements and leaderboards to your game
book_5 Add multiplayer support to your gamepackage_2 games_servicesscience Use the Foreign Function Interface in a Flutter pluginhandyman Tiledbook_5 Add advertising to your Flutter game
science Add AdMob ads to a Flutter app
science Add in-app purchases to your Flutter app
quick_reference_all Gaming UX and Revenue Optimizations for Apps (PDF)package_2 shared_preferences
package_2 sqflite
package_2 cbl_flutter (Couchbase Lite)api Paint API
book_5 Special effectsscience Build next generation UIs in Flutter
<topic_end>
<topic_start>Add achievements and leaderboards to your mobile game
Gamers have various motivations for playing games.
In broad strokes, there are four major motivations:
immersion, achievement, cooperation, and competition.
No matter the game you build, some players want to achieve in it.
This could be trophies won or secrets unlocked.
Some players want to compete in it.
This could be hitting high scores or accomplishing speedruns.
These two ideas map to the concepts of achievements and leaderboards.Ecosystems such as the App Store and Google Play provide
centralized services for achievements and leaderboards.
Players can view achievements from all their games in one place and
developers don’t need to re-implement them for every game.This recipe demonstrates how to use the games_services package
to add achievements and leaderboard functionality to your mobile game.<topic_end>