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Web App Development Plan

8-12 Weeks
Manus-First Development

From Prototype to Playable Web App

An accelerated 12-week roadmap to transform Gridfall into a fully functional 3D multiplayer web game — built primarily with Manus AI and minimal external resources.

3D Vision Concepts

Click to expand
Isometric Territory View

Isometric Territory View

Elevated hex terrain with shield domes, alliance borders, and marching armies

Base Close-Up

Base Close-Up

Detailed player base with command center, turrets, and resource nodes

Strategic Overview

Strategic Overview

Full war map with multiple alliances, combat effects, and fog of war

12-Week Sprint Plan

Week 1-2

3D World Foundation

Three.js hex world, camera controls, basic terrain rendering

01
Week 3-4

Structures & Visuals

Player bases, buildings, shield effects on the 3D map

02
Week 5-6

Multiplayer Foundation

Real-time WebSocket sync, player presence, basic chat

03
Week 7-8

Core Gameplay Loop

Resources, marching armies, basic combat resolution

04
Week 9-10

Heroes & Progression

Hero recruitment, gacha system, player progression

05
Week 11-12

Polish & Launch

UI refinement, effects, testing, deployment

06

Recommended Tech Stack

frontend

React 19
Three.js
React Three Fiber
Tailwind CSS
Framer Motion

backend

Supabase
PostgreSQL
WebSockets
Edge Functions

multiplayer

Supabase Realtime
Colyseus (optional)

deployment

Vercel
Railway
Cloudflare CDN

Tools & Resources

Development

Cursor/Windsurf
AI code editor for quick fixes
~$20/mo
VS Code
Fallback editor
Free
GitHub Copilot
Code completion
~$10/mo

Backend & Database

Supabase
Auth, database, realtime sync
Free tier
Railway
Game server hosting
Free tier
Vercel
Frontend deployment
Free tier

3D Assets

Sketchfab
3D model marketplace
$15-50/model
Ready Player Me
Character avatars
Free tier
Mixamo
Character animations
Free
Kenney Assets
Free game assets
Free

Audio

Freesound
Sound effects library
Free
Epidemic Sound
Background music
~$15/mo
Suno AI
AI-generated music
Free tier

Estimated External Costs

One-time purchases for 3D assets and audio

$300-500
Total (not including Manus)
3D Hero Models
$200-400
Sound Effects
$30-50
Music
$50-100

What Manus Builds

3D Graphics Engine

Three.js hex world with shaders

Real-time Multiplayer

WebSocket sync for 100+ players

Game Logic

Combat, resources, progression

Database & Auth

Supabase integration

UI/UX Design

React components & animations

Deployment

CI/CD pipeline setup

External Requirements

These items require external sourcing — Manus can integrate them but cannot create from scratch:

3D Hero Models

5-8 stylized character models from Sketchfab or commissioned artist

Sound Effects

Combat sounds, UI feedback, ambient audio from stock libraries

Background Music

Cyberpunk ambient tracks from stock audio or AI generation

Ready to Start Building?

The first milestone is a 3D hex world prototype — navigable, with basic terrain and camera controls. This validates the technical approach before committing to the full build.