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
Siralim Ultimate
Siralim Ultimate is a monster-catching, dungeon-crawling RPG with a ridiculous amount of depth
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.7
236 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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included17 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 Siralim Ultimate: 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
Offer affordable ad-free tier ($2.99)
Assumption to check: Too many intrusive ads
Validate with people who use this workflow before building.
Hypothesis 2
Cosmetic-only purchases, skill-based progression
Assumption to check: Pay-to-win mechanics
Validate with people who use this workflow before building.
Hypothesis 3
Add battery saver mode, optimize rendering
Assumption to check: Battery drain
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
Siralim Ultimate is a monster-catching, dungeon-crawling RPG with a ridiculous amount of depth. Summon over 1200 different creatures and travel through randomly generated dungeons to acquire resources, new creatures, and loot. If you’re looking to compare Siralim Ultimate to other games, you might think of it as Pokemon meets Diablo, or more accurately, Dragon Warrior Monsters meets Path of Exile. FEATURES • 1200+ creatures to collect • Fuse your creatures together - the offspring inherits its parents’ stats, traits, and even the way they look! • Randomly generated dungeons spanning 30 unique tilesets • Customize your castle with thousands of different decorations • Engage in strategic 6v6 battles • Craft Artifacts and Spell Gems for your creatures • Choose from one of 40 specializations for your character and earn perks that change the way your creatures fight in battle • Insane amount of post-story content that will keep you engaged for thousands of hours (yes, really!) • Supports gamepads! • Cross-platform cloud saving allows you to pick up where you left off with the desktop version of the game or simply another mobile device. • No ads, no IAPs, no timers, no gimmicks! You don't even need to be connected to the internet to play.
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
Unity
Firebase
AdMob
RevenueCat
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.
