App Overview

Lands of Jail icon

Lands of Jail

SINGAPORE JUST GAME TECHNOLOGY PTE.LTD. · Games

"In a world plagued by rampant crime and deepening social divisions, you're dispatched to the Isle of the Banished—where criminals are banished far from civilization—and face the challenge of turning chaos into order.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.8
22,385 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.

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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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Combine features and design from your favorite apps.

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What's included16 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.

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.

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Lands of Jail: 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

Implement feedback systems and balancing algorithms to enhance player experience.

Assumption to check: Game balance issues leading to frustration.

Validate with people who use this workflow before building.

Hypothesis 2

Develop a comprehensive onboarding process with guided tutorials.

Assumption to check: Limited tutorial for new players.

Validate with people who use this workflow before building.

Hypothesis 3

Simplify the purchase process and clarify item benefits.

Assumption to check: In-app purchases can be confusing.

Validate with people who use this workflow before building.

Hypothesis 4

Optimize the game for lower-end devices to improve accessibility.

Assumption to check: Performance issues on older devices.

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

"In a world plagued by rampant crime and deepening social divisions, you're dispatched to the Isle of the Banished—where criminals are banished far from civilization—and face the challenge of turning chaos into order. Roll up your sleeves—it's time to prove you're the Warden who can take charge! As a Warden, Your Duties Include: **Managing Prisoners** You oversee every aspect of the prisoners' lives, from meal schedules to work assignments. Your strategic decisions are critical, affecting the balance between stability and turmoil. **Tracking Fugitives** With dangerous fugitives still on the loose, it's up to you to track them down and bring them back. Once arrested, these high-risk criminals can be put to work, helping you maintain order and efficiency within your facility. **Ensuring Order and Profit** Running a successful prison takes more than just muscle—it takes a sharp mind too. Manage your budget wisely, upgrade your facilities, and turn a profit, all while keeping the prisoners in line and the operation running smoothly. Show off your command skills and establish yourself as the ultimate authority—the Warden!" [Auto-Renewal Subscription Product Explanations] 1. Subscription Service: New Premium Member Monthly Subscription (1 Month) 2. Subscription Price: First purchase $19.99/month, subsequent auto-renewals $19.99/month 3. Auto-Renewal: Accounts that purchase the monthly Premium Member subscription will automatically charge through your apple account 24 hours before expiration each month and extend membership validity by 1 month. 4. Cancel Service: If you need to cancel your subscription, please manually open iOS [Settings] – [Apple ID] – [Subscriptions] – [Active] – [Cancel] 24 hours before the current subscription expires. For more information about canceling subscriptions on iOS devices, please visit the Apple Support page: https://support.apple.com/en-gb/HT202039. 5. Terms of Service: https://sdkinit.rebxgame.com/protocol?language=1&typeFlag=9&appId=10185 6. Privacy Policy: https://sdkinit.rebxgame.com/protocol?language=1&typeFlag=1&appId=10185

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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
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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.