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.
The Kingdom has fallen
$6.99
Evidence scope: #36 is the current overall US Paid chart position. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Kingdom Rush 6: Genesis TD: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The Kingdom has fallen. Time has turned back. And the only way to save the future is to defend the past. Welcome to Kingdom Rush 6: Genesis The legendary tower defense saga by Ironhide Game Studio returns. Travel back to the dawn of Linirea, recruit the heroes who built the kingdom, and stop a young Vez'nan before darkness takes hold. A PREQUEL, REWRITTEN Return to the original Kingdom Rush lands at a time when legends were just beginning. Walk through known battlefields and uncover the moment everything went wrong. 15 TOWERS, ENDLESS STRATEGIES Archers, mages, barracks, artillery, every tower has a specialty, and the real game is the synergy between them. Build your defense, lock the lane, watch the wave break. 12 LEGENDARY HEROES Take two heroes into each battle and combine their abilities. Familiar Linirean champions return to your side, fighting beside you like the old days, and a few faces you're about to meet for the first time. 9 POWERFUL SPELLS Equip a loadout of spells and unleash them at the moment that matters, meteor showers, powerful reinforcements, battlefield-wide control. Save them for the bosses. You'll need them! 18 HANDCRAFTED CAMPAIGN STAGES Cross three landscapes of early Linirea, from the Citadel to the Stormcloud Depths and the far away lands of Arcania. Face 40+ enemies across 5 distinct races, and 6 colossal bosses standing between you and the future. THE PLOT THICKENS. More lore, more callbacks, and the Kingdom Rush humor that made you fall in love with Linirea in the first place. GAME MODES, ACHIEVEMENTS, AND EASTER EGGS For the ones who like to 100% everything: 50+ achievements, harder modes if you're feeling brave, and easter eggs we had way too much fun hiding. OFFLINE, ANYWHERE Defend the realm on the bus, on a plane, in a tower of your own. No connection required. Defend the past to change the future. Join the millions of players who have rallied to Linirea since 2011.
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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
Assumption to check: Limited tower variety can lead to repetitive gameplay
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of multiplayer options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulty spikes in certain levels may frustrate users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-game tutorials are often insufficient
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.