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
Hyper Light Drifter
Finally, Heart Machine's award winning slash-'em-up arrives to iOS in the most polished and refined version yet, the Special Edition.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.9
6,703 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.
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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 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 Hyper Light Drifter: 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
Include an interactive tutorial that guides users through gameplay basics.
Assumption to check: Limited tutorial or guidance for new players
Validate with people who use this workflow before building.
Hypothesis 2
Introduce varied quests and dynamic enemy AI to enhance engagement.
Assumption to check: Repetitive gameplay mechanics
Validate with people who use this workflow before building.
Hypothesis 3
Implement a mini-map or compass feature to aid exploration.
Assumption to check: Difficult navigation in expansive maps
Validate with people who use this workflow before building.
Hypothesis 4
Offer a balanced progression system that rewards players without needing to purchase additional content.
Assumption to check: In-app purchases can disrupt gameplay flow
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
Finally, Heart Machine's award winning slash-'em-up arrives to iOS in the most polished and refined version yet, the Special Edition. ► Winner of the Audience Award and Excellence in Visual Art awards of the prestigious Independent Games Festival. ► 14 + nominations among the Best Visual Design, Best Audio and Best original Game categories. ► 9/10 Destructoid - A hallmark of excellence. There may be flaws, but they are negligible and won't cause massive damage. ► 9.5/10 Game Informer - The combination of soundtrack, art, and combat creates a rabbit hole worth your full exploration. ► Eurogamer Recommended - Heart Machine's slash-'em-up is punishing and precise - and incredibly beautiful. ► 9/10 GameSpot - It is more than simply pretty; Hyper Light Drifter uses its visuals to both guide and relax you. The grandest vistas calm your pulse between difficult, breathless combat sequences. ► 8.5 Polygon - Hyper Light Drifter deftly mixes contemplative moments with breakneck action. ► 5 Stars Darkstation - The top-down action-RPG Hyper Light Drifter is an amazing game: gorgeous, a fascinating world to explore, tight controls, beautiful music, and the faith in the player for you to figure things out on your own. Echoes of a dark and violent past resonate throughout a savage land, steeped in treasure and blood. Drifters of this world are the collectors of forgotten knowledge, lost technologies and broken histories. Our Drifter is haunted by an insatiable illness, traveling further into the lands of Buried Time, hoping to discover a way to quiet the vicious disease. Hyper Light Drifter is an action adventure RPG in the vein of the best 16-bit classics, with modernized mechanics and designs on a much grander scale. Explore a beautiful, vast and ruined world riddled with dangers and lost technologies. Features: ● 120 fps gameplay on iPad Pro / 60 fps on iPhone and iPad. ● Compatible with MFi controllers. ● Game Center achievements. ● Haptic Vibration. ● From each character to subtle background elements, everything is lovingly hand-animated. ● Easy to pick up, difficult to master; enemies are vicious and numerous, hazards will easily crush your frail body, and friendly faces remain rare. ● Upgrade weapons, learn new skills, discover equipment and traverse a dark, detailed world with branching paths and secrets abound. ● Evocative soundtrack composed by Disasterpeace. ● All the content from the original game + more weapons, enemies and areas from the Special edition.
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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
Zustand
React Navigation
react-native-reanimated
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.
