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I will fix bugs or add features to your unity 2d or 3d game development
Jasperk
4.3
4.3
About this gig
Are you facing bugs or issues in your Unity game? Or do you need to add new features quickly?
Im here to help. i am a professional Unity developer with experience fixing errors, improving performance, and adding gameplay features to existing projects.
What I can fix:
- ️ Errors and bugs in Unity (C#)
- ️ Game not building or crashing
- ️ FPS/performance issues
- ️ UI/UX problems
- ️ Player movement & mechanics
- ️ Multiplayer issues (Photon)
What I can add:
- ️ New features
- ️ Game systems
- ️ UI elements
- ️ Ads / monetization
What you get:
- ️ Fast delivery
- ️ Clean and optimized code
- ️ Clear communication
- ️ Support after delivery
️ Important:
Please contact me before placing an order so I can review your issue.
Get to know Jasperk
Jasperk
Unity Game Developer 2D 3D Multiplayer Mobile PC Games
- FromUnited States
- Member sinceMar 2025
- Avg. response time3 hours
- Last delivery3 weeks
Languages
English, Spanish, French
Hi, I’m Jasper, a professional Unity game developer with strong experience in creating high quality 2D and 3D games for mobile and PC.
I specialize in building engaging and optimized games, including multiplayer systems, endless runners, shooting games, and custom gameplay mechanics.
My expertise includes:
✔️ Unity (C#) development
✔️ Multiplayer integration (Photon, etc.)
✔️ Game optimization & performance
✔️ AI systems and player mechanics
✔️ UI/UX and smooth gameplay experience
I focus on delivering clean code, high performance, and visually appealing games that meet client expectations.
FAQ
Do you help with the game concept?
Yes — in this gig I’ll assist with design and concept work too.
What is included in the design document?
Mechanic description, level flow, UI/UX sketches, feature list.
Will you help publish the game?
I can prepare builds and guide you; publishing is on your side or extra.
Can the game be extended later?
Yes — I structure code for expansion or I can help with extensions.
Reviews
6 reviews for this Gig
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
F fortstar
Poland
He initially mentioned that he required a period of 7 days to complete the task at hand. However, shortly after this initial request, he approached me again, asking for an additional 22 days to ensure that he could deliver the work. This request for extra time raised some concerns, as it suggested that...
Up to $50
Price
1 day
Duration
Helpful?R 
robin_ivana
United Kingdom
I’m very impressed with Kelvin Jasper’s Unity skills. He fixed my bugs quickly and contributed to the game’s overall development. Will definitely work with him again.
Up to $50
Price
6 days
Duration
Helpful?A 
adeshinaking
Repeat Client
United States
Fast delivery, clear communication, and incredible Unity skills. The game runs flawlessly, and all changes were made exactly as requested. Highly recommended for any game project!
Up to $50
Price
4 days
Duration
Helpful?A adeshinaking
Repeat Client
United States
Excellent work The gameplay quality and attention to detail were amazing. The seller truly understands Unity and game development. I’m extremely satisfied.
Up to $50
Price
4 days
Duration
Helpful?C 
christos_antoni
Repeat Client
United Kingdom
Outstanding experience! Delivered a clean and polished Unity game with smooth mechanics and great communication throughout. Highly recommend
Up to $50
Price
8 days
Duration
Helpful?
Reviews
6 reviews for this Gig
| (5) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (1) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
F fortstar
Poland
He initially mentioned that he required a period of 7 days to complete the task at hand. However, shortly after this initial request, he approached me again, asking for an additional 22 days to ensure that he could deliver the work. This request for extra time raised some concerns, as it suggested that...
Up to $50
Price
1 day
Duration
Helpful?R robin_ivana
United Kingdom
I’m very impressed with Kelvin Jasper’s Unity skills. He fixed my bugs quickly and contributed to the game’s overall development. Will definitely work with him again.
Up to $50
Price
6 days
Duration
Helpful?A adeshinaking
Repeat Client
United States
Fast delivery, clear communication, and incredible Unity skills. The game runs flawlessly, and all changes were made exactly as requested. Highly recommended for any game project!
Up to $50
Price
4 days
Duration
Helpful?A adeshinaking
Repeat Client
United States
Excellent work The gameplay quality and attention to detail were amazing. The seller truly understands Unity and game development. I’m extremely satisfied.
Up to $50
Price
4 days
Duration
Helpful?C christos_antoni
Repeat Client
United Kingdom
Outstanding experience! Delivered a clean and polished Unity game with smooth mechanics and great communication throughout. Highly recommend
Up to $50
Price
8 days
Duration
Helpful?
