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HTML5 GAMES TONATIVE APPS
Package your HTML5 game for Steam, App Store, and Google Play. No build scripts, no boilerplate — just your game folder and a few clicks.
Works with any HTML5 engine
WHAT YOU GET
Everything you need to ship your HTML5 game — desktop and mobile
Steamworks Integration
Achievements, cloud saves, leaderboards, overlay, multiplayer. One-line API calls — no SDK boilerplate.
iOS & Android
Export to App Store and Google Play via Capacitor. Orientation, icons, and native device APIs — all configured automatically.
Cross-Platform Desktop
Windows, macOS, Linux — built simultaneously. x64, ARM64, 32-bit. No VMs, no CI pipelines.
Asset Encryption
Your game files get encrypted at build time. Stops casual asset extraction from the app bundle.
Plugin System
Extend builds with custom hooks. Add watermarks, inject analytics, transform assets — in JavaScript.
Any HTML5 Engine
Phaser, Kaplay, GDevelop, Construct, PixiJS, Three.js, Unity WebGL — if it exports HTML5, GemShell ships it.
EXPORT TARGETS
Five platforms. One build tool.
Windows
x64, ARM64, 32-bit. Steam-ready installer.
macOS
Universal binary. Intel + Apple Silicon.
Linux
x64 + ARM64. Ubuntu, Debian, Arch.
iOS
App Store-ready Xcode project. Auto-signed icons + orientation.
Android
Google Play-ready Android Studio project. Icons, orientation, manifest patched.
HOW IT WORKS
From web game to App Store in four steps
01
Open Your Game
Drop your HTML5 game folder into GemShell, or create a new project from a template.
02
Configure
Set your app name, icon, bundle ID, version. Enable Steamworks if you need it.
03
Pick Targets
Desktop: Windows/macOS/Linux. Mobile: iOS/Android. Mix and match.
04
Build & Ship
GemShell builds everything. Upload to Steam, itch.io, App Store, or Google Play.
GemShell Build
[GemShell] Packaging game assets (847 files, 7.2 MB)...[GemShell] Windows x64 — built (195 MB)[GemShell] macOS Universal — built (210 MB)[GemShell] Linux x64 — built (188 MB)[GemShell] iOS — Xcode project ready[GemShell] Android — Android Studio project ready[GemShell] All targets complete — ready to ship!
DEPLOY ANYWHERE
Built-in publishing pipelines for every major store and platform
Steam
Upload to Steamworks with one click. Supports all depots, branches, and launch options. Full Steamworks SDK integration built in.
Steam Deploy Guide →itch.io
Push builds directly to itch.io via butler. Automatic version bumping — just set your itch.io credentials and ship.
itch.io Deploy Guide →GitHub Releases
Publish builds as GitHub Releases automatically. Tag, attach binaries, and draft release notes — all from GemShell.
GitHub Deploy Guide →App Store & Google Play
GemShell generates the Xcode and Android Studio projects. Sign, archive, and upload to the stores from your native IDE.
Mobile Publishing Guide →GRAB IT
Free gets you started. Pro gets you on Steam, App Store, and Google Play.
Free
Lite
Game jams, prototypes, testing the waters
- Export to Windows / macOS / Linux
- iOS & Android (Capacitor)
- Works with any HTML5 engine
- Steamworks test mode (App ID 480)
- GemShell splash on startup
Full Version
Pro
Ship to Steam, itch.io, App Store, Google Play
- Everything in Lite
- Your own Steam App ID
- Custom app icon (.exe / .app)
- Asset encryption & compression
- No splash screen
- Plugin system & build hooks
- Priority support
Ready to ship your game?
Read the docs, or just download and try it — it takes about 5 minutes.