Phaser.js, WebGL & Canvas — Browser-Native, No Plugin
HTML5 Game Development Company
SDLC Corp is a specialist HTML5 game development company building browser-based games that run on any device without downloads or app stores. We use Phaser.js, PixiJS, Babylon.js, and WebGL — full source code ownership, no revenue share.
HTML5 Game Studio
Browser games that run on any device — no install, no app store
We build browser-based games in Phaser.js, PixiJS, Babylon.js, and WebGL — browser game development without app store dependency. Our games run on any device with a modern browser — no app store, no download, no plugin required. That distribution advantage matters for casual games, advergames, and game portals where install friction kills conversion.
We have shipped 150+ HTML5 titles across puzzle, casual, arcade, multiplayer, and educational formats. Since HTML5 game performance depends as much on asset pipeline and render loop architecture as it does on game design, we handle both in the same team.
Phaser.js & PixiJS
Browser-native engines
Any Device, Any Browser
No install required
Source Ownership
No lock-in
5 Global Offices
USA, UK, India, UAE, Qatar
Verified Reviews & Awards
Verified by Clutch, GoodFirms, and Sortlist — what clients say
Clutch, GoodFirms, and Sortlist each verify client identity before publishing. So these scores reflect real game projects, not vendor-edited testimonials.
Clutch
5.0
11 verified reviews
Quality 5.0 · Schedule 5.0 · Cost 5.0
GoodFirms
4.9
155+ verified reviews
Global Leader 2024 · Verified B2B
Sortlist
5.0
49 reviews
International client verified
Ratings checked April 2026 — click any badge to read the reviews directly
★★★★★
“Smooth process from start to finish. Code was clean and scalable, performance improved noticeably, and communication stayed clear throughout every milestone.”
Eunice Helen
CEO, Solena
GoodFirms — Verified
★★★★★
“Strong gameplay mechanics, solid visual quality, and they delivered on time. They know what they’re doing and communicate well throughout the whole project.”
Dan Lesser
Director of Growth, Chronius Health
Clutch — Verified
★★★★★
“They delivered exactly what we asked for and went further when it mattered. Honest, responsive, technically strong. We would work with them again.”
Anonymous Client
Product Director, Gaming Studio
Sortlist — Verified
Services
HTML5 & browser game development services — casual to multiplayer
We cover HTML5 game development end-to-end — from simple browser casual games through multiplayer portals and white-label advergames. Since HTML5 eliminates the app store distribution barrier, it opens monetisation and reach models that native platforms make difficult.
Full-Cycle HTML5 Game Development
From GDD through deployment and LiveOps. We handle game design, Phaser.js development, art, QA, and hosting configuration — one team, no handoffs.
Custom Browser Game Development
Bespoke HTML5 games built specifically for your brand, portal, or platform. Since browser games ship without app store approval, launch timelines are faster than native equivalents.
HTML5 Mobile Game Development
Browser games optimised for mobile screens, touch inputs, and limited mobile bandwidth. HTML5 runs everywhere — mobile-optimised builds require separate asset sizing, UI layouts, and performance budgets.
Multiplayer HTML5 Games
Real-time and turn-based multiplayer via WebSockets and Socket.io. We design the backend architecture before the game UI — because HTML5 multiplayer state synchronisation has different constraints than native app multiplayer.
HTML5 Educational & Advergames
Educational games, branded games, and advergames that embed directly on your website or LMS. Since these deploy via URL rather than an app store, distribution and update cycles are dramatically simpler.
HTML5 Game Portal & Licensing
HTML5 games built for licensing to game portals, ad networks, and white-label distribution. We structure the codebase and asset pipeline for multi-tenant rebranding from the start.
Tech Stack
Technology stack — Phaser.js, WebGL game development, and browser rendering
We use Phaser.js for most 2D browser games because it has the most mature HTML5 game loop, physics, and asset management system. For 3D browser games, Babylon.js or Three.js gives better WebGL control than any game-agnostic framework. We confirm the right framework during discovery based on your game type and performance requirements.
Engines & Frameworks
Phaser.js (3.x), PixiJS, Babylon.js, Three.js, Cocos2d-JS, PlayCanvas, custom WebGL game loops
Rendering
HTML5 Canvas 2D, WebGL (GPU-accelerated), CSS animations, SVG sprites, OffscreenCanvas for threading
Multiplayer
Socket.io, WebSockets, Firebase Realtime DB, Colyseus, Node.js game servers, Redis pub/sub
Audio & Assets
Web Audio API, Howler.js, TexturePacker, FMOD (web export), Spine web runtime, GSAP animation
Monetisation
Google AdSense, IronSource web, in-game IAP via Stripe, ad mediation, portal licensing APIs
DevOps & QA
Webpack, Vite, AWS CloudFront CDN, BrowserStack (cross-device), Lighthouse audits, GitHub Actions
How We Build
What browser game performance actually requires
HTML5 game performance is harder to achieve than people expect — browser rendering, asset loading, and JavaScript garbage collection all create frame-rate problems that native game engines handle automatically. Our HTML5 game development company addresses each of these as engineering requirements from the first sprint.
60fps on Mid-Range Mobile Browsers
HTML5 games load on mobile browsers that have half the GPU budget of equivalent native apps. Since mobile browser performance is the binding constraint for HTML5 games, we set frame budgets during game design rather than at QA.
Asset Pipeline Optimisation
Texture atlases, audio sprites, and lazy-loaded level assets reduce initial load time significantly. Because HTML5 games live and die by their load time — especially for ad-supported casual games — we treat asset pipeline as a first-class engineering concern.
Responsive Layout at All Sizes
Game canvas and UI scale cleanly from 320px mobile to 4K desktop. HTML5 games are often treated as mobile-first, many portal and advergame deployments are desktop-primary, so we build for both simultaneously.
Offline Mode & PWA Support
Service Worker caching and Progressive Web App manifests for HTML5 games that need to work offline or install to a home screen. Since offline-capable HTML5 games can be distributed through app stores as PWAs, this opens native-equivalent distribution without native development cost.
Analytics & A/B Testing
Game event tracking via Firebase Analytics or custom event pipelines, with A/B test hooks built into the game logic. Because HTML5 game retention is measured by URL session metrics rather than app store ratings, we instrument these pre-launch.
Cross-Platform Embed
Single codebase deploys to your website, Facebook Instant Games, iOS/Android via Cordova, WeChat mini-games, and third-party game portals. Because each deployment target has different API constraints, we abstract platform-specific APIs into a thin adapter layer during production.
How a Project Runs
How a browser game project runs — sprint by sprint
We run structured sprints with browser-based builds throughout — shared via URL, testable on any device, no install required. Since HTML5 game delivery is naturally iterative, you see working game every sprint rather than waiting for a build pipeline.
01
Week 1
Discovery
Game type, target browser/device matrix, distribution platform (your site, portal, PWA), and monetisation model confirmed. Since HTML5 performance targets differ significantly depending on whether the primary audience is mobile or desktop, we confirm device split during discovery.
02
Week 2–3
Prototype
Playable prototype in-browser on the target device tier. HTML5 prototypes move faster than native — we apply the same device-profiling approach — because mobile browser frame-rate problems are impossible to find in desktop Chrome.
03
Week 3–N
Production
Sprint-based HTML5 development with weekly browser builds shared via URL. You test on real devices throughout every sprint — no file downloads, no test environments to configure.
04
Final Sprint
QA & Deployment
Cross-browser QA on Chrome, Safari, Firefox, Edge, and Samsung Internet. Asset optimisation, CDN configuration, and load-time audit. Since HTML5 game load time directly affects bounce rate, we target sub-3-second load on a 4G connection.
05
Post-Launch
LiveOps & Updates
Content updates pushed via URL with no user action required — which is HTML5’s biggest operational advantage over native. New levels, seasonal content, and bug fixes deploy instantly to every active session.
Portfolio
Browser games we have shipped — puzzle, multiplayer, advergame, educational
Four browser-based projects across puzzle, multiplayer, advergame, and educational formats. Clients include now.gg (HTML5 cloud gaming platform) and Huawei AppGallery. Each deployed via URL with no app store involved.
View All Case Studies →Browser Puzzle Game
HTML5 Casual Puzzle
Casual puzzle game deployed via URL on a game portal and embedded on the client’s website. Since load time was critical for an ad-supported model, we optimised the asset pipeline to achieve sub-2-second first load on 4G mobile — which reduced bounce rate by 34% versus the previous Flash version.
Multiplayer HTML5 Strategy
Real-Time Browser Strategy
Real-time multiplayer strategy game running in-browser with Socket.io and dedicated Node.js servers. Because HTML5 multiplayer requires careful management of WebSocket connection lifecycle, we built and tested the connection layer under simulated poor-network conditions before any game logic was written.
Advergame Campaign
Branded HTML5 Advergame
Branded casual game deployed as an embed on the client’s marketing campaign microsite and distributed via social media links. Since advergames need to load in under 2 seconds on mobile to achieve completion rates above 60%, we built a custom streaming asset loader that separated the playable core from decorative assets.
HTML5 Educational Game
K-12 Learning Game
Curriculum-aligned educational game deployed via LMS embed (SCORM-compatible) and a standalone URL. Educational games have lower visual complexity than entertainment titles — they require careful pedagogical scaffolding — so we assigned a learning designer alongside the game engineer from sprint one.
Why SDLC Corp
Why studios hire HTML5 game developers from SDLC Corp
Six specific things about how we work — not values statements. Each reflects a real decision we make on every HTML5 game project.
01
150+ HTML5 Games Shipped
We have shipped 150+ HTML5 titles across casual, multiplayer, educational, and advergame formats since 2015. Since HTML5 game performance challenges accumulate with experience rather than theory, our team has encountered most load-time and frame-rate failure modes before they occur on your project.
02
Framework Selection Based on Your Game
We use Phaser.js for 2D browser games, PixiJS for rendering-intensive canvas work, and Babylon.js or Three.js for 3D WebGL. We confirm the right framework during discovery — because using Phaser.js for a 3D game or Three.js for a simple casual game both add unnecessary complexity.
03
Load Time Is a First-Class Requirement
We target sub-3-second first load on a 4G connection from the first prototype. HTML5 games are often built to spec without load-time constraints — but load time is the single biggest driver of bounce rate for browser-based games — especially ad-supported ones.
04
Clutch 5.0 on 11 Verified Reviews
Clutch scores us 5.0/5.0 across Quality, Schedule, Cost, and Willingness to Refer on 11 independently verified client reviews. GoodFirms scores us 4.9/5 on 155 reviews. These reflect real game project outcomes — since neither platform allows vendor editing of submitted reviews.
05
Cross-Platform from One Codebase
The same HTML5 game codebase deploys to your website, Facebook Instant Games, WeChat mini-games, iOS/Android via PWA or Cordova, and third-party game portals. Each target has different API constraints — we abstract platform APIs into a thin adapter layer so deployment to a new target is typically one sprint.
06
Full Source Code Ownership
Everything we build belongs to you on project completion — JavaScript/TypeScript source, all game assets, Phaser.js configuration, and deployment scripts. No licensing restrictions, no revenue share, no dependency on proprietary tooling.
FAQ
Frequently asked questions — HTML5 and browser game development
Straight answers. We respond to project enquiries within one business day.
What is an HTML5 game development company?
An HTML5 game development company specialises in building browser-based games using HTML5, CSS3, JavaScript, and related frameworks like Phaser.js, PixiJS, and WebGL. Unlike a general game studio, a specialist HTML5 game development company understands browser rendering constraints, asset pipeline optimisation, cross-browser compatibility, and distribution via URL rather than app stores. SDLC Corp is a full-cycle HTML5 game development company covering everything from game design through CDN deployment and post-launch updates.
How much does HTML5 game development cost?
A focused HTML5 casual game (puzzle, arcade, or simple advergame) typically runs $8k–$35k. A mid-complexity HTML5 game with multiplayer, progression systems, or portal integration typically runs $35k–$100k. A complex HTML5 game with 3D WebGL, real-time multiplayer, or multi-platform deployment typically runs $100k+. Since HTML5 game cost depends heavily on asset volume and multiplayer architecture rather than just feature count, we confirm final scope and cost during our discovery phase.
How long does HTML5 game development take?
A focused HTML5 casual game prototype takes 2–4 weeks. A full casual or mid-core HTML5 game typically runs 3–6 months. A complex HTML5 game with multiplayer or 3D typically runs 5–10 months. Because HTML5 games deploy via URL with no store review, launch timelines are faster than equivalent native game projects — though load-time optimisation and cross-browser QA still add time at the end of production.
What is the best framework for HTML5 game development?
Phaser.js is the most practical choice for 2D HTML5 games because it has a mature game loop, physics, and asset management system with extensive community support. PixiJS is better for rendering-intensive 2D work where you need maximum canvas performance. Babylon.js and Three.js are better for 3D browser games where WebGL control matters. Since framework choice affects both performance ceiling and developer tooling, we confirm the right one during discovery based on your game type, not habit.
Do HTML5 games work on mobile?
Yes. HTML5 games run in mobile browsers (Chrome, Safari, Samsung Internet, Firefox) without any installation. Since mobile browsers have significantly less GPU budget than desktop browsers, mobile-optimised HTML5 builds require separate asset sizes, touch-specific UI layouts, and tighter draw call budgets. We treat mobile and desktop as separate performance targets rather than assuming a desktop-built game will work acceptably on mobile.
Can HTML5 games be published on app stores?
Yes — using Progressive Web App (PWA) packaging or native wrappers like Cordova and Capacitor. PWA allows HTML5 games to be installed from the browser to a home screen and appear in some app stores. Cordova wraps the HTML5 game in a native container and publishes to Google Play and the App Store. Since each wrapper adds platform-specific compliance requirements, we confirm the distribution strategy during discovery.
What is the difference between HTML5 games and native games?
HTML5 games run in a browser using JavaScript, HTML5 Canvas, and WebGL — they require no installation and update instantly via URL. Native games (Swift, Kotlin, Unity) run at the OS level and access full hardware capabilities. Although HTML5 games have lower performance ceilings than native, they have zero install friction, instant updates, and cross-platform reach from a single codebase. For casual games, advergames, and educational titles where distribution speed matters more than raw performance, HTML5 is often the better business decision.
What makes SDLC Corp the right HTML5 game development company?
We have shipped 150+ HTML5 titles and hold Clutch 5.0 ratings on 11 verified reviews and GoodFirms 4.9 on 155 reviews. More specifically: we treat load time as a first-class engineering requirement, we select the right framework per project type rather than defaulting to one, and we structure the asset pipeline for your target distribution platform (portal, embed, PWA) from the first sprint. Every project delivers with full source code ownership and we stay involved post-launch.
How do I hire an HTML5 game developer?
We offer three models: full-cycle development (we build the complete browser game from GDD to deployment), dedicated HTML5 game developer hire (one or more specialists integrated into your team for a fixed sprint or ongoing engagement), and co-development (we own specific systems — multiplayer backend, asset pipeline, or framework integration — while you retain creative direction). Most clients start with a one-week discovery before committing to a model.
Can HTML5 games run offline or as Progressive Web Apps?
Yes. Using Service Workers and the Web App Manifest, any HTML5 game we build can be packaged as a Progressive Web App (PWA) that installs to a device home screen, runs offline after first load, and receives push notifications. PWA packaging adds roughly two to three days of additional work and is the most cost-effective way to get a browser game into an app-store-adjacent experience without the full Cordova or Capacitor native wrapper overhead.
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