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
Dragon Ruins I
A refined and streamlined 3D dungeon crawler experience for those weary of complex stories and intricate controls.
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.9
11 ratings · Top 50%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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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 Dragon Ruins I: 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
Introduce daily challenges and unique levels to enhance replayability.
Assumption to check: Limited user engagement due to repetitive gameplay
Validate with people who use this workflow before building.
Hypothesis 2
Implement a difficulty rating system for puzzles.
Assumption to check: Inconsistent puzzle difficulty
Validate with people who use this workflow before building.
Hypothesis 3
Add multiplayer elements or leaderboards to increase competitiveness.
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Offer a freemium model to allow trial access to attract more users.
Assumption to check: High cost for initial purchase
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
A refined and streamlined 3D dungeon crawler experience for those weary of complex stories and intricate controls. Brave the depths of an ancient ruin discovered in the capital of Isigwere, where no soul has ever returned—and where a legendary dragon awaits. In this retro-style dungeon crawler RPG, become the hero who conquers the maze and slays the beast lurking in the shadows. - A perfectly paced adventure you can enjoy in one go. Explore the ancient ruins and become stronger. - Form your party by choosing four members from 12 classes, including Knight and Archer. - Fight or flee. Enjoy smooth, fast-paced combat with convenient auto-battle. - With each run, enemies grow in number and strength. Challenge an ever more powerful final boss through repeated playthroughs. * This app supports devices newer than iPhone XS and iPad 8th with iOS 15 and up. User support on non-supported devices is not guaranteed.
Written user reviews are not shown here. Check current App Store reviews >
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
React Navigation
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react-native-gesture-handler
BUILD KIT DIFFICULTY
Intermediate
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.
