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  Homepage and main learning modes

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  Vocabulary learning with story-based content

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  Sentence learning through interactive stories

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  Reading comprehension challenge

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  Perfect score with Rank S and 10/10 correct answer

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  dventure map with grade-based stages

English Adventure Island

Inspiration

Many Japanese elementary school students find it difficult to stay interested in learning English through traditional exercises. We wanted to create a game that makes learning feel like an adventure, where children learn naturally while having fun.

What it does

English Adventure Island is a mobile-friendly English learning game designed for Japanese elementary school students.

Players learn English by:

• Identifying words from pictures
• Listening to natural English pronunciation
• Completing mini-games
• Collecting stars and rewards
• Progressing through themed adventure stages

The game focuses on making English enjoyable instead of stressful.

How we built it

The project was built with Codex and GPT-5.6.

Codex accelerated software development by helping design the game architecture, implement gameplay logic, and improve the user interface.

GPT-5.6 assisted with game content, English vocabulary, educational prompts, and user experience design.

The game is built as a responsive web application that works on both desktop and mobile devices.

Challenges we ran into

Designing a game that is educational while remaining fun was the biggest challenge.

We also needed to keep the interface simple enough for young children while maintaining smooth gameplay across different screen sizes.

Accomplishments that we're proud of

• Built a complete playable English learning game.
• Created a child-friendly adventure experience.
• Combined education with game mechanics instead of traditional quizzes.
• Designed for Japanese elementary school learners.

What we learned

We learned that AI can significantly accelerate educational game development, from brainstorming and coding to content creation and interface improvements.

Using Codex and GPT-5.6 allowed us to iterate much faster than with traditional development.

What's next for English Adventure Island

Future versions will include:

• AI-generated learning content
• Voice pronunciation practice
• Adaptive difficulty based on each learner
• Parent learning dashboard
• Additional adventure worlds and vocabulary packs

Built With

• codex
• gpt-5.6
• html5