I will build a playable game prototype in unreal engine 5 or unity


About this gig
Need a playable prototype to validate your idea, pitch to investors, or test gameplay before full production?
I build high-quality game prototypes and vertical slices using Unreal Engine 5 or Unity.
You bring the idea I turn it into a working, fun, testable experience.
⭐ What Youll Get
Depending on your needs, your prototype can include:
Core Gameplay Mechanics
- Player controller (FPS, TPS, top-down, platformer)
- Movement, interaction, physics, abilities
- AI for enemies/NPCs
- Puzzles, triggers, level scripting
Visual & Audio Integration
- Placeholder assets or your own art
- UI, HUD, menus, transitions
- Animation blueprints / controllers
- Basic sound effects integration
️ Systems & Structure
- Inventory, pickups, crafting
- Health, damage, combat loops
- Character progression or skill trees
- Save/load functionality
⭐ Prototype Types I Build
- Gameplay proof-of-concept
- Vertical slice for pitch decks
- First-playable for Steam demo
- Rapid iteration prototypes for teams
- Mobile, PC prototypes
⭐ Why Work With Me?
- Fast, iterative development
- Clean, organized code
- Strong knowledge of gameplay system design
- Clear communication throughout the build
Lets Build Your Vision!
Get to know Yves Clement E.
- FromCameroon
- Member sinceApr 2019
- Avg. response time3 hours
- Last deliveryabout 22 hours
Languages
English, French
My Portfolio
Other Game Development Services I Offer
FAQ
Can you deliver a full vertical slice with UI, AI, and gameplay?
Yes — depending on scope and package.
Do you work with both Unity and Unreal?
Yes, I prototype in UE5 (C++ or Blueprint) and Unity (C#).
Can you use placeholder assets?
Yes, I can use simple placeholders or your provided assets.
Do prototypes include source code?
Yes, full source can be included.

