PC Game Sales & Live Chat Script

I'm in need of a specialist to design and implement my PC game sales script. This script is intended to list our PC games for sale, and it must effectively integrate payment acceptance for purchased games. Moreover, providing reliable game download links for customers post-purchase is critical.

Primary duties to be executed:

1. Develop a robust game listing interface for PC games
2. Incorporate a secure payment processing gateway
3. Create an efficient system for delivering downloadable game links

In addition to the above tasks, I also require the integration of a live chat support feature within the game sales script. This will facilitate effective and real-time customer service.

Ideal Skills:
- Mastery of programming and script development
- Extensive experience with payment gateway integration
- Knowledge of Customer Service Software for live chat support
- A solid understanding of digital download processes for games.

This project requires a stringent and efficient execution to ensure smooth transactions while prioritizing customer service. Therefore, prior relevant experience would be highly valued.