Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
App Overview
Top Tycoon: Coin Theme Empire
Welcome to Top Tycoon, where strategy, excitement, and fun collide! Build a powerful production empire, earn coins through lucky spins, and raid rivals to expand your domain
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
35,886 ratings · Top 5%
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
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Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included19 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Differentiate and validate
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Top Tycoon: Coin Theme Empire: map the core Games workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Provide clear pricing and value for each purchase.
Assumption to check: In-app purchase confusion
Validate with people who use this workflow before building.
Hypothesis 2
Introduce more game modes or challenges.
Assumption to check: Limited gameplay variety
Validate with people who use this workflow before building.
Hypothesis 3
Optimize asset loading and reduce initial app size.
Assumption to check: Slow loading times
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing and competitive modes to engage users.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Welcome to Top Tycoon, where strategy, excitement, and fun collide! Build a powerful production empire, earn coins through lucky spins, and raid rivals to expand your domain. Perfect for fans of competitive social games, casual tycoon adventures, and engaging idle mechanics, this game offers endless fun and rewards. ► FEATURES THAT KEEP YOU PLAYING Spin & Win Big - Try your luck on the fortune wheel to collect coins, prizes, and bonuses that fuel your empire's growth. Every spin is a chance to unlock something amazing! Raid & Conquer - Strategize and raid rival operations to gather resources. Outsmart your opponents, protect your earnings, and grow faster than ever! Build & Upgrade - Construct efficient production facilities and upgrade them to maximize your output. From harvesting timber to processing resources, the possibilities are endless. Compete Worldwide - Challenge players across the globe in exciting events and climb the leaderboards. Will your empire reign supreme? Play with Friends - Socialize, challenge friends, and share your progress as you rise to tycoon fame. ► WHY YOU'LL LOVE IT • Addictive Gameplay: A perfect mix of strategy, idle rewards, and competitive fun. • Stunning Visuals: Enjoy vibrant graphics and smooth animations that bring your empire to life. • Constant Updates: With new equipment, challenges, and features added regularly, there’s always something fresh to explore. • Accessible Fun: Easy-to-learn mechanics ensure enjoyment for both casual and experienced players. Unleash your inner tycoon and build an empire that’s full of excitement and surprises! Whether you’re spinning for coins, raiding for resources, or competing in events, every moment is packed with adventure. Download Top Tycoon: Idle Empire Builder now and get ready to dominate the leaderboard! TOP TYCOON is free to play, though some in-game items can also be purchased for real money. Internet connection is required to play the game.
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Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
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zustand
BUILD KIT DIFFICULTY
Advanced
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.
