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
Merge Mansion: Mystery Story
Welcome to Merge Mansion – the original merge puzzle game with cozy gameplay, epic adventures and high drama!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
203,600 ratings · Top 15%
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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Generating… usually about a minute.
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 included18 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 Merge Mansion: Mystery Story: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Welcome to Merge Mansion – the original merge puzzle game with cozy gameplay, epic adventures and high drama! Restore a forgotten mansion to its former glory – and solve mysteries along the way! Can you uncover the secrets Grandma is hiding and reveal the truth behind the Boulton family’s past? Unlock spaces and rooms in the garden and mansion by completing fun merge tasks. Collect clues, meet fascinating characters, and piece the story together one mystery at a time. Relax into this cozy merge puzzle game packed with more twists and turns than Grandma’s knitting. MATCH & MERGE Merge matching items to upgrade, and use them to complete tasks. Enjoy the satisfaction of creating and discovering new items and chains! RENOVATE & DECORATE Restore the mansion and gardens to their former glory! Collect themed decorations and customize your home as you wish. INVESTIGATE & SOLVE Uncover hidden areas and combine clues to find out what secrets Grandma is hiding - how far down the mystery rabbit hole will you go? EXCLUSIVE EVENTS Play limited-time events to gain points, climb leaderboards, collect gorgeous decorations, and win big rewards! Merge Mansion is the number one destination for a cozy mystery puzzle adventure - and it never gets boring! Download this free puzzle merge game and discover its secrets. —————————— Did you get stuck or run into a problem? Visit our support page in the Merge Mansion app or send us a message at [email protected]. —————————— Merge Mansion is free to download and play. Some in-game items can also be purchased for real money. You can turn off the payment feature by disabling in-app purchases in your device’s settings. Merge Mansion may offer randomized virtual items for purchase. Merge Mansion may be updated from time to time for content or technical updates. If you do not install the provided updates, Merge Mansion may not function properly or at all.
Written user reviews are not shown here. Check current App Store reviews >
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 varied challenges and mini-games to enhance engagement.
Assumption to check: Repetitive gameplay can become monotonous
Validate with people who use this workflow before building.
Hypothesis 2
Incorporate social sharing options and cooperative gameplay.
Assumption to check: Limited social features for sharing progress
Validate with people who use this workflow before building.
Hypothesis 3
Design a fair monetization system that rewards free players.
Assumption to check: In-app purchases can disrupt gameplay balance
Validate with people who use this workflow before building.
Hypothesis 4
Implement a more structured difficulty progression system.
Assumption to check: Difficulty curves can be inconsistent
Validate with people who use this workflow before building.
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
Zustand
React Navigation
react-native-reanimated
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.
