FunHub — A casual game portal inside Toss

Overview

FunHub is a casual game portal launched inside the Toss app. Users arrive already signed in through Toss and spend a single coin currency across a range of mini-games. It is a commercial game platform complete with a coin economy, in-app purchases, advertising and leaderboards.

Each mini-game is built on its own Canvas engine and talks to the portal host through a standardised GameBridge ABI. The point of that design is to stamp out new games quickly from one shared core engine.

The games (12+)

Shooting and action

• Survivor: top-down auto-shooter with roguelike progression
• Sky Ace / Star Gunner: vertical-scrolling shooters with boss fights
• Brick Wizard: brick breaker with spell effects

Puzzle and arcade

• Worm Block: rotation and overflow block puzzle
• Block Pang: 8×8 block puzzle
• Orb Merge: physics-based orb merging
• Stack Tower: timing-based block stacking
• Pipe Line: real-time route-building puzzle

Classics

• Pinball Classic / Pinball Boss: pinball with missions and boss fights

Core systems

• Coin economy: coins earned and spent through play and daily bonuses
• In-app purchases: Toss payments plus Google Play Billing
• Rankings and profiles: personal best scores and competitive standings
• Community board: strategy discussion and player chat
• Multi-platform release: inside Toss, plus Android via Capacitor

Tech stack

Vite + React 19 + TypeScript 5.9
Zustand + TanStack Query — state management
Tailwind CSS 4 — portal UI
Canvas / PixiJS — game rendering
GameBridge ABI — standard game-to-host communication
Fastify + PostgreSQL 16 — backend and economy
@apps-in-toss/web-framework — Toss in-app integration
Capacitor — Android packaging

Scale

• 12+ mini-games (more in development)
• Eight core domains: coins, wallet, subscriptions, IAP, sessions, community board and more
• Multi-platform: Toss in-app plus Android
• A mix of portrait and landscape games (720×1280 / 1280×720)

Architecture notes

A monorepo layers each mini-game as an independent package on top of a reusable core engine (Bam1). Adding a new game means conforming to the GameBridge ABI — not reimplementing the portal, economy or payment systems — which makes content expansion very fast.