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I will develop a browser game, HTML5 game, javascript game, or phaser game for web
Mares calvillio
About this gig
Are you looking for a professional game developer who can build a high-quality browser game, HTML5 game, JavaScript game, or Phaser game that works flawlessly on any device no downloads, no installs, just click and play?
You've found the right developer.
I specialize in building fully custom web-based games from scratch arcade games, platformers, puzzle games, RPGs, card games, casual games, and more all running directly in the browser with smooth gameplay, polished visuals, and clean code.
WHAT I BUILD:
- Browser Games- Games that run instantly in any browser
- HTML5 Games-WebGL games built to HTML5 standards
- JavaScript Games
- Phaser 3 Games - Professional 2D games built with the world's most popular HTML5 game framework
WHAT YOU ALWAYS GET:
- Fully playable game
- Cross-browser compatible
- Touch and keyboard/mouse controls
- Sound effects and background music
- Score system and leaderboard
- Clean, commented, well-structured source code
WHY CHOOSE ME:
I've shipped real games not just tutorials or templates. My code is clean, modular, and built to be extended, i communicate throughout the project, and don't disappear after delivery.
BEFORE YOU ORDER:
Message me first with your game idea!!!
Get to know Mares calvillio
Mares calvillio
Game Development
- FromUnited States
- Member sinceApr 2026
- Avg. response time3 hours
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
What types of games can you build?
I build browser games, HTML5 games, JavaScript games, and Phaser 3 games across all genres — arcade, platformer, puzzle, RPG, card game, educational game, trivia/quiz, match-3, endless runner, tower defense, and casual mini-games. If you have a game idea, message m
Will the game work on mobile and desktop?
Yes, every game I build is fully responsive and tested on desktop browsers (Chrome, Firefox, Safari, Edge) and mobile (iOS Safari, Android Chrome). Touch controls are included for all mobile-compatible games.
Do I get the source code?
Yes — always. You receive the full source code as a clean ZIP file and/or a private GitHub repository. The code is well-commented and easy to modify or extend.
Can you reskin or modify an existing game?
Yes. Reskinning (swapping sprites, audio, colors, and branding) and adding features to existing JavaScript, HTML5, or Phaser games is something I do often. Send me your game files and I'll give you a quote.
Do you add ads or in-app monetization?
Yes. I can integrate Google AdSense, AdMob banner ads, and interstitial ads into HTML5 and browser games. Monetization setup is available as an add-on or included in the Premium package.
