As an experienced and skilled PHP developer, with a specific focus on game logic implementation, I am confident that I am the nonpareil candidate you need for this role. Over the years, I have successfully executed numerous complex projects in PHP and embody a deep understanding of the language that transcends from simple to intricate operating systems. Such experience, I believe, primes me to adeptly handle your medium complexity game backend requirements.
In addition to being proficient in PHP, my familiarity and knowledge of multiple frameworks could be an added advantage for your project. I recognize the significance of using the right tools for the job and pride myself on having an arsenal of tools suitable for each unique project requirement. Therefore, even though it's not mandated to use a specific framework or engine for your game backend, it gives an assurance that an experienced hand is in charge.
Moreover, my skill-set is fortified with proficiency in HTML5, JavaScript and MySQL; which widens my potential to include additional necessary mechanics like score systems and varying player capabilities. Consequently, this will create a fluid unified system that flawlessly incorporates every element of your video game design. I look forward to ensuring both utmost professionalism and maximum satisfaction on your project with DKDM Infotech Pvt Ltd.