Cross-Platform Action/Adventure Game Integration

I am seeking an experienced mobile app developer to implement an in-app action/adventure game for both iOS and Android platforms. The game must integrate seamlessly with the main app.

Key Requirements:
- Develop for both iOS and Android
- Action/adventure game genre
- Seamless integration with the main app

Ideal Skills and Experience:
- Proven mobile app development experience
- Strong background in action/adventure game design
- Expertise in app integration and cross-platform functionality
- Familiarity with both iOS and Android development environments

Please provide portfolios and relevant experience in your bids.