Hi everyone,
I’m a professional game engineer based in Germany with over 9 years of experience, which comes mainly from modding Valve games like CS:GO, Team Fortress 2, and Left 4 Dead 2.
I’m self-employed and offer game engineering services focused on gameplay systems and AI development, which is my core expertise across any engine, whether it’s Unreal Engine, Unity, or others. I also offer consultation for developers who are looking for technical guidance or a second opinion.
You can find examples of my work and past projects here:
- Website: justin-chellah.com
- GitHub: github.com/justin-chellah
- YouTube: youtube.com/@Justin_Chellah
You can find my workflow, services, and pricing structure in detail on my website if you want a clear breakdown of how I work (fixed-price model, no hourly billing), my process, and answers to common questions.
I occasionally post to see if any interesting projects come up – ideally from individuals, small studios, or startups who are serious about what they’re building. I’m especially interested in connecting and potentially working with people or teams with a vision they’re actively developing, some funding (or are in the process of securing it), and a foundational plan or roadmap they’re ready to develop further.
I’ve set up a clear and structured process to make collaboration simple and transparent. Part of this includes Terms & Conditions (GTC), which forms the basis of our agreement. It outlines both sides’ responsibilities, covers common game development risks (like engine updates or unexpected technical issues), and ensures fairness. Under German law, this is considered a ‘work service contract,’ which means I’m legally obligated to deliver a successful result.
If you want to start a project or just have a chat, feel free to reach out via email here and share a short message about yourself and your project.
Cheers