App Overview

Honkai: Star Rail icon

Honkai: Star Rail

COGNOSPHERE PTE. LTD. · Games

Honkai: Star Rail is a HoYoverse space fantasy RPG.

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.4
52,973 ratings · Top 30%

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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A product spec, screen plans, and build steps for your coding agent.

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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/
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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 Honkai: Star Rail: 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 a clearer UI for purchasing items and a tutorial.

Assumption to check: In-app purchase experience can be confusing for users.

Validate with people who use this workflow before building.

Hypothesis 2

Optimize loading screens and provide tips while loading.

Assumption to check: Long loading times during battles.

Validate with people who use this workflow before building.

Hypothesis 3

Introduce more customization features and options.

Assumption to check: Limited character customization options.

Validate with people who use this workflow before building.

Hypothesis 4

Create a unified notification system for event updates.

Assumption to check: Inconsistent notifications for events.

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

Honkai: Star Rail is a HoYoverse space fantasy RPG. Hop aboard the Astral Express and experience the galaxy's infinite wonders filled with adventure and thrills. Players will meet new companions across various worlds and maybe even run into some familiar faces. Overcome the struggles together caused by Stellaron and unravel the hidden truths behind it! May this journey lead us starward! □ Explore Distinct Worlds — Discover the boundless universe filled with wonder 3, 2, 1, initiating warp! A space station with Curios sealed away, a foreign planet with an eternal winter, a starship hunting down abominations, the Planet of Festivities nested in sweet dreams, The Eternal Land where destiny hangs by a thread, the arcadia that had once fallen into a painting scroll... Every stop of the Astral Express is a never-before-seen view of the galaxy! Explore fantastical worlds and civilizations, uncover mysteries beyond imagination, and set out on a journey of wonder! □ Riveting RPG Experience — A best-in-class immersive adventure beyond the stars Embark on a galactic adventure where you shape the story. Our cutting-edge engine renders high-quality cinematics in real-time, our innovative facial expression system concocts genuine sentiments, and HOYO-MiX's original score sets the stage. Join us now and journey through a universe of conflict and collaboration, where your choices define the outcome! □ Fateful Encounters Await! — Cross paths with characters intertwined by destiny As you traverse the sea of stars, you'll not only have countless adventures, but also many chance encounters. You will forge friendships in a frozen land, fight side by side with comrades in the Xianzhou crisis, and have unexpected encounters in a golden dream. A game of an Aeon when the Phantasmoon waxes full... On this alien world, you will meet greet companions walking these different paths amongst the starts and experience incredible journeys together. Let your laughter and woes compose the story of your present, past, and future. □ Turn-based Combat Reimagined — Exhilarating multifaceted gameplay fueled by strategy and skill Engage in a combat system that sports a variety of team compositions. Match your lineups based on your enemy's qualities and strike while the iron is hot to bring down your foes and claim victory! Break Weaknesses! Deliver Follow-up Attacks! Deal Damage over Time... and try out the brand-new Aha Instant! Countless strategies and tactics await your unlocking. Build an approach suited for you and face the onrush of successive challenges! Beyond the thrilling turn-based combat, there are also simulation management modes, casual elimination mini-games, puzzle exploration, and more... Explore an exciting variety of gameplay and experience endless possibilities! □ Top-Tier Voice Actors for an Immersive Experience — A dream team of multiple language dubs assembled for the entire story When words come alive, when stories give you a choice, when characters possess a soul... We present to you dozens of emotions, hundreds of facial expressions, thousands of lore pieces, and a million words that make up this universe's beating heart. With full voice-over in four languages, the characters will transcend their virtual existences and become your tangible companions, creating a new chapter in this tale together with you. Customer Service Email: [email protected] Official Website: https://hsr.hoyoverse.com/en-us/home Official Forum: https://www.hoyolab.com/accountCenter/postList?id=172534910 Facebook: https://www.facebook.com/HonkaiStarRail Instagram: https://instagram.com/honkaistarrail Twitter: https://twitter.com/honkaistarrail YouTube: https://www.youtube.com/@honkaistarrail Discord: https://discord.gg/honkaistarrail TikTok: https://www.tiktok.com/@honkaistarrail_official Reddit: https://www.reddit.com/r/honkaistarrail

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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
TypeScript
React Navigation
Zustand
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.