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
Fantasy Life i
From thrilling adventures to building up your own island, the anything-goes slow-life RPG comes to mobile!
$24.99
PRICE
$24.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
43 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.
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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 included15 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 Fantasy Life 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
Allow users to create and customize their own characters with a variety of features.
Assumption to check: Limited character customization options
Validate with people who use this workflow before building.
Hypothesis 2
Introduce unique, dynamic quests that change based on player choices.
Assumption to check: Repetitive quests and gameplay
Validate with people who use this workflow before building.
Hypothesis 3
Develop an interactive tutorial system to guide new players through gameplay mechanics.
Assumption to check: Insufficient tutorial guidance for new players
Validate with people who use this workflow before building.
Hypothesis 4
Incorporate social features such as multiplayer modes or community events.
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
From thrilling adventures to building up your own island, the anything-goes slow-life RPG comes to mobile! Experience an epic story, explore a vast open world, or simply relax with fishing, cooking, and crafting. Do what you want, whenever and wherever you like—all in the palm of your hand. Start your very own Fantasy Life! ■ Play Anytime on Your Smartphone Whether you want to enjoy a laid-back life as a farmer and grow crops at your own pace, or simply run free across a vast landscape, your fantasy life is always waiting whenever you have a spare moment. Cross-play support lets you play together with friends on both mobile devices and consoles! ■ Guided by a Dragon to a Mysterious Island You are an adventurer who sets sail alongside the archaeologist Edward and his team. Following the guiding light from a fossilized dragon, you discover an uncharted island. The Depths, a mysterious skeletal dragon, and a message from a girl pleading, "Save this world..." Travel between the island's golden age 1,000 years ago and the present day to uncover the mystery behind its destruction! ■ Shape Your Adventure with 14 Unique Lives In this world, a Life is your chosen profession, and each Life has its own identity and playstyle. Switch to a Gathering Life to gather ingredients and materials, a Crafting Life to create weapons and meals, or a Combat Life to battle monsters. Swap between Lives anytime and create a Fantasy Life that's uniquely yours. ■ Craft Your Island Put your Lives to work and gather resources to restore the island to its former glory! Place houses and objects, reshape the landscape, and even create your own rivers and roads to build an island that's truly one of a kind. Expand your home, freely arrange furniture, and customize your interiors! ■ Embark on an Open-World Adventure! Explore the largest continent in the series and venture wherever your heart takes you! Climb towering cliffs, swim across rivers and lakes, or ride across the land on your favorite mount. Oh, and the Teleportation Gate lets you easily travel to the continent from anywhere. *The 2P Family Co-op feature is not available in the mobile version. ▼ Official X https://x.com/FANTASYLIFE_EN ▼ Official Website https://www.fantasylife.jp/fli/en/ ▼ System Requirements Supported OS: iOS 15 or later Please note that even if your device meets the minimum system requirements, performance may vary depending on your device model, usage conditions, or other factors.
Written user reviews are not shown here. Check current App Store reviews >
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
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BUILD KIT DIFFICULTY
Expert
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.
