Browse categories
Explore
Fiverr Pro
English
$
USD
I will fix, optimize or build your unity mobile game
williamw
About this gig
Are you stuck with bugs, performance issues, or unfinished systems in your Unity game?
Im a Unity developer currently building and maintaining a live mobile game, and I specialise in fixing real production issues quickly and cleanly.
I can help you with:
- Fixing bugs and broken gameplay systems
- Improving mobile performance (Android & iOS)
- Reducing memory usage and build size
- Implementing gameplay features
- Integrating backend systems (PlayFab, IAP, ads)
- Preparing your game for App Store or Google Play
I focus on:
Clean, maintainable code
Mobile-first performance
Fast turnaround
Clear communication
Whether your project is stuck, broken, or just needs polishing I can help.
Message me before ordering and Ill take a look at your project.
Note: For smaller fixes, feel free to message me I offer custom pricing.
About me:
Im currently developing my own mobile game, so I understand real-world performance, optimisation, and release challenges.
Get to know williamw
williamw
Unity Game Devloper
- FromUnited Kingdom
- Member sinceAug 2021
- Avg. response time2 days
Languages
English
Hi, I’m William — a C# developer specialising in Unity and real-time systems.
I’m currently developing a full 3D mobile game, Card Mansion, where I’ve built complex gameplay systems, backend integrations, and optimised performance for mobile devices.
I enjoy solving challenging problems, fixing bugs, and building clean, scalable systems that actually work in real projects.
If you're stuck on something in Unity or C#, I’d be happy to help you get it working quickly and properly.
FAQ
Do I need to contact you before ordering?
Yes, please message me before placing an order. I’ll review your issue and confirm the best approach, timeline, and price. This ensures you get exactly what you need.
Can you fix small issues for less than the listed price?
Yes. For smaller fixes, I can provide a custom offer at a lower price. Just send me details of your issue.
What do you need from me to get started?
Typically: A description of the issue Screenshots or video (if possible) Your Unity project or relevant files I’ll guide you if you’re unsure.
Do you work with mobile games?
Yes — I specialise in mobile (Android & iOS). I focus on performance, optimisation, and real-world production issues.
Can you help with PlayFab or backend systems?
Yes. I have experience integrating backend systems such as PlayFab, including inventory, data storage, and monetisation.
What kind of issues can you fix?
Examples include: Bugs and crashes Performance issues (lag, memory) Broken gameplay systems Ads or IAP not working Build and submission issues
