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
How Many Dudes?
"How Many Dudes?" is a roguelike dudebuilder that's all about game-breaking synergies and simulated chaos
$9.99 · In-app purchases
OVERALL US RANK
#38
Paid · all categories
REVENUE (Est)
$255K/mo
$147K - $363K
RATING
★ 4.6
124 ratings · Top 15%
Evidence scope: #38 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.
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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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 How Many Dudes?: 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 varied game modes or challenges to keep users engaged.
Assumption to check: Repetitive gameplay can lead to boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Implement social sharing options and friend challenges.
Assumption to check: Limited social features for sharing results.
Validate with people who use this workflow before building.
Hypothesis 3
Provide hints or a scoring guide to assist players.
Assumption to check: Difficulty in accurately estimating scores can frustrate users.
Validate with people who use this workflow before building.
Hypothesis 4
Offer a free trial or a lower-cost entry point to attract more players.
Assumption to check: High price point may deter users.
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
"How Many Dudes?" is a roguelike dudebuilder that's all about game-breaking synergies and simulated chaos. RECRUIT YOUR DUDES Welcome to the Dude Ranch, where you recruit and manage your ever-expanding army of Dudes. ‣ Choose from a wild cast of 42 Unique Dudes across 6 Dude Families: Undead Dudes, Employed Dudes, Warrior Dudes, Fantasy Dudes, Sci-Fi Dudes, and Action Dudes. ‣ Setup your Team to mix and match Dude Types and form ridiculous synergies - like Zombie Dudes who explode when struck by enemies, Ninja Dudes who throw a barrage of Shurikens, or Cowboy dudes who lasso other Dudes out of danger. ‣ More than 850,000 Team compositions means there's tons of strategies and overpowered combos to discover. SYNERGY! TACTICS! MAYHEM! Create game-breaking synergies with your choice of Dudes, Trinkets, and Relics. ‣ Collect hundreds of Dude Relics that warp the rules of battle. Make your Wizard Dudes fling a volley of fireballs when they move, your Ninja Dudes enter stealth when in danger, or your Finance Dudes generate cash with a life insurance policy on your other Dudes. ‣ Defeat Act Bosses to earn Trinkets - powerful items assigned to a Dude Type that enable game breaking strategies. Should you give your Wizard Dudes ADHD, or give your Samurai Dudes a Taser? It's up to you! ‣ Choose your Dudes wisely. Each Dude has their place in battle, from dishing out damage to tanking it to commanding other Dudes. Find the right balance between offense and defense, and see if your team can make it all the way to the final act. ABSURD CHALLENGES Face escalating enemy waves—from toddlers to wolves to gorillas to gods! ‣ Conquer boss fights that test your team’s synergy (and your sanity). ‣ Defeat bosses to earn Silver and Gold stars for each Dude, and see if you can master them all! FEATURES ‣ Strategic roguelike autobattler full of game-breaking synergies ‣ 42 Unique Dude Types to recruit and build out your team ‣ Hundreds of Relics, Trinkets, and Wandering Dude events that completely reshape each run ‣ Three Tiers of Challenge, each with additional unique enemies and epic boss battles ‣ Game modes like The Daily Dude and Ensemble Mode, which allows for pre-selecting your dream team ‣ Infinite replayability and absurdity
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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
react-navigation
axios
expo-ads-admob
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.
