Fantasy 3D City Builder Game

I'm looking for an experienced mobile game developer to create a 3D city-building game for both iOS and Android platforms. The game should have a fantasy theme, incorporating imaginative and whimsical building designs.

Key Requirements:
- 3D realistic graphics
- Fantasy-themed city buildings
- In-app store for purchasing coins to build structures

Ideal Skills and Experience:
- Proficiency in 3D modeling and game development
- Experience with mobile game development for iOS and Android
- Strong understanding of in-app purchase systems
- Creativity in designing fantasy-themed environments

Please include a portfolio showcasing similar projects. Looking forward to your bids!