Develop a 2d Pixel Art Turn-Based Rpg Game for Mobile and Pc

I am seeking an experienced developer to create a basic turn-based creature RPG game, drawing inspiration from titles like Pokémon. The game will feature original creatures and names inspired by Greek mythology. The primary goal is to create an addictive gameplay experience.

Key features and requirements:
- Game Type: Turn-based creature RPG with a focus on battles and evolution stages.
- Art Style: 2D pixel art.
- Platforms: The game should be playable on mobile devices (iOS/Android) or PC, with flexibility for cross-platform development.
- Creatures: Initially, there will be a maximum of 50 unique creatures, including all evolution stages. Creatures will evolve by leveling up and reach their final form based on a character choice (yes/no).
- Battles: All battles will be 1 vs 1. Players will be able to have a total of 4 creatures in their party.
- Maps: The game will include 4 distinct maps, equivalent to different gym leader areas, comprising a total of 20 different zones. Each area should be approximately 2000 squares, with enemy encounters appearing every 15-45 steps/squares.

My role: I will provide all necessary game assets, including creature designs, names, and pixel art.

Your role: The freelancer will be responsible for all coding, integrating the provided assets, and ensuring the game is fully functional and polished. It is crucial that the developed code and game can be legally sold in the future without any intellectual property issues.