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$
USD
I will develop ue5 multiplayer web3 game, blockchain integration and smart contracts
Mares calvillio
About this gig
Looking to launch the next big Web3 title or build a high-performance multiplayer game?
You are in the right place!
I am a professional Game Developer specializing in Unreal Engine 5 (UE5), advanced multiplayer networking, and seamless blockchain integration. Whether you need a competitive multiplayer prototype or a fully deployed Web3 game ecosystem with smart contracts, I deliver optimized, industry-standard code.
What I Can Do For You:
- Full-stack Unreal Engine 5 (UE5) game development (Blueprints & C++)
- Dedicated server setup & smooth multiplayer replication
- Web3 blockchain integration (Wallet login, NFT gating, token economies)
- Secure smart contract deployment (ERC-721, ERC-1155, ERC-20)
- High-quality level design, optimization, and bug fixing
Our Working Process:
- We map out your game logic and Web3 tech stack. 2.
- I build the core gameplay and networking systems.
- I connect the backend smart contracts to your game UI.
- Rigorous multiplayer QA to ensure zero exploits and smooth frame rates.
Why Choose Me?
- Years of hands-on experience with UE5 and blockchain technology.
- Clean, well-commented code that is easy to expand.
Please contact me before placing your order!
Get to know Mares calvillio
Mares calvillio
Game Development
- FromUnited States
- Member sinceApr 2026
- Avg. response time6 days
Languages
Spanish, English
Hello,
I am Mares Calvillio, a professional web game developer with hands-on experience building and shipping browser games, HTML5 games, JavaScript games, and Phaser 3 games for clients across multiple industries.
My work covers the full spectrum of 2D web game development — from fast-loading casual arcade games and cross-platform puzzle games, to feature-rich platformers, RPG adventures, card games, and branded mini-games. Every game I deliver runs directly in the browser, works seamlessly on desktop and mobile, and is built to a professional standard that buyers can be proud of.
FAQ
Do I get the complete source code of the game?
Yes, full source code delivery is included in both the Standard and Premium packages. For the Basic package, you will receive a comprehensive PDF technical roadmap and architecture blueprint document.
What if I already have smart contracts written and just need them integrated into UE5?
I can absolutely help with that! If you already have your backend tokenomics or NFTs deployed, I can focus entirely on building the Unreal Engine 5 frontend UI, wallet connection, and gameplay logic to read and write data to your existing contracts.
Can you help with setting up dedicated multiplayer servers?
Yes. I specialize in replication and network optimization in UE5. I can set up and configure dedicated servers (using services like AWS, PlayFab, or custom VPS solutions) to ensure your multiplayer game runs smoothly with low latency.
Can we start with a small prototype first?
Definitely! In fact, I highly recommend starting with either my Basic consultation package to map things out, or the Standard package to build a small, working proof-of-concept. This keeps your upfront risk low while we perfect the core gameplay loop.
