BLYTS, LLC (“BLYTS”) — CASTLE BRAVO PRIVACY POLICY

Last Updated: 2026-07-23

INTRODUCTION

Blyts, LLC (“Blyts”, “we”, “us”, or “our”) develops and publishes Castle Bravo, an interactive narrative game presented as a messenger experience (the “Service”). The Service includes the Castle Bravo application on web and mobile devices (including the Storytime Messenger / STM client) and related companion websites that support the story experience (such as castlebravo.org and fictional in-world sites).

In this policy, “Blyts, LLC” refers to Blyts, LLC and its Affiliates, meaning subsidiaries, parent companies, joint ventures, and other corporate entities under common ownership.

When you use the Service, you agree to this Privacy Policy. IF YOU DO NOT AGREE TO THIS POLICY, PLEASE DO NOT USE THE SERVICE.

This Privacy Policy describes:

The personally identifiable information (“personal information”) and other information we collect and hold, how we do so, and the purposes of our collection
How we use and with whom we share such information
How you can access and update such information
The choices you can make about how we collect, use, and share your information
How we protect the information we store about any user of the Service (“you” or “user”)
How to contact us with questions about this Privacy Policy

WHAT CASTLE BRAVO IS (AND IS NOT)

Castle Bravo is a single-player interactive story. Fictional characters send you messages, voice notes, photos, and documents. You reply in your own words. Characters react to what you write.

Important clarifications for privacy:

The Service is not a social network or multiplayer chat with other real players.
There are no player forums, public profiles shared with other players, leaderboards based on your identity, or friend-invite contact uploads.
Messages you send are part of gameplay with fictional characters, not communications with other users.
You can play without creating a traditional account with email and password.

INFORMATION WE COLLECT

Account and session identifiers

You do not need Facebook Connect or a classic email/password registration to play.

When you use the Service, we create or restore a Service account identifier (a chat_id) so we can save your progress and deliver messages. On mobile apps, that identifier may be derived from a hashed device identifier so your progress can persist on the same device. On web, it may be generated randomly and stored locally (for example in browser local storage).

We may also store:

Your preferred language
Client platform (for example web, iOS, or Android)
Basic preferences you set in the Service (for example notification or gameplay options)

Messages and gameplay data

To run the story, we collect and store:

Messages you send to characters
Messages, media, and story events delivered to you
Conversation history, progress, and related gameplay state
Technical metadata needed to deliver and synchronize chats (for example timestamps and chat identifiers)

Because replies are free-text, content you type into the game may include personal information if you choose to write it. Do not share information in chat that you do not want processed as described in this policy.

Artificial intelligence processing

Castle Bravo uses third-party AI / large language model providers to generate character responses and related narrative content. Message text and necessary context from your play session may be transmitted to those providers solely to operate the Service. We direct such providers to process information as needed to provide their services to us, not to use it for unrelated purposes where we can contractually require that.

Device and technical information

When you access the Service, we may collect:

IP address
Device type / operating system / browser or app platform
App or client version
Server log data about requests and Service activity
Crash or error diagnostics when available

We do not collect device MAC addresses, precise GPS location, Wi‑Fi scan data, your phone contacts, or Facebook account data for Castle Bravo.

Push notifications

With your permission on supported mobile devices, we may collect and store a push notification token (for example via Firebase Cloud Messaging) so we can send Service-related notifications, such as new in-story messages. You can disable push notifications in the Service settings and/or your device settings.

Advertising and privacy choices (mobile)

On supported mobile builds, the Service may show ads through Google AdMob (or similar advertising partners). Before personalized advertising is initialized, we may ask for privacy choices, including:

Whether you allow personalized ads (for example GDPR-style consent)
Whether you request that we not sell/share personal information for advertising where U.S. state privacy laws apply

Your choices may be stored locally on your device. Depending on your choices and platform rules (including Apple App Tracking Transparency where applicable), ads may be personalized or non-personalized.

Advertising partners may collect device advertising identifiers and similar technical data according to their own policies.

Customer support

If you contact us for support, we collect the contact information and content you provide (typically name and email address), information about your Service activity or account identifier if you share it, and the correspondence itself.

Local storage and cookies

The Service may use local storage, cookies, or similar technologies to:

Keep you signed in / restore your chat_id
Remember language and settings
Store advertising consent choices
Operate and secure the Service

The Service does not currently respond to browser “Do Not Track” (DNT) signals.

HOW WE USE INFORMATION

We use the information described above to:

Provide, operate, maintain, and improve Castle Bravo
Create and restore your Service session / progress
Deliver story messages, media, and gameplay features
Generate AI-driven character responses
Provide customer support
Send push notifications you have enabled
Show ads and honor advertising privacy choices
Prevent fraud or abuse
Analyze technical performance and fix bugs
Enforce our terms and protect the rights, safety, and property of Blyts and users
Comply with law

We do not use Castle Bravo as a marketplace for selling your personal information to third parties for their independent direct marketing on an ongoing basis.

HOW WE SHARE INFORMATION

We may share information with:

Service providers

Third parties that help us run the Service, such as:

Hosting and infrastructure providers
AI / LLM providers used to generate story responses
Push notification providers (for example Firebase / Google)
Advertising partners (for example Google AdMob)
Analytics or diagnostics tools we may use to operate the Service
Customer support tooling

We direct these providers to use your information to perform services for us and to maintain appropriate confidentiality and security.

Legal, safety, and compliance

We may access, preserve, and disclose information when we have a good-faith belief it is reasonably necessary to:

Comply with law, regulation, legal process, or governmental request
Enforce our terms and investigate potential violations
Detect, prevent, or address fraud, security, or technical issues
Protect the rights, property, or safety of Blyts, users, or the public

Business transfers

If Blyts is involved in a merger, acquisition, financing, reorganization, bankruptcy, or sale of assets, your information may be transferred to a successor as part of that transaction. If material privacy changes would result, we will provide notice as described below.

Companion and linked sites

The Service may open fictional or promotional companion websites and third-party links. Sites we operate are covered by this policy (or a linked Blyts policy). Third-party sites have their own privacy practices; we are not responsible for them.

YOUR CALIFORNIA PRIVACY RIGHTS / U.S. STATE PRIVACY CHOICES

We do not share personal information with third parties for their own direct marketing on a continual basis. Advertising on mobile may involve “sale” or “sharing” of personal information under some U.S. state laws when personalized ads are enabled. You can opt out of personalized advertising through the in-app privacy choices (including a do-not-sell/share style preference where offered) and, where available, through platform settings.

California Civil Code Section 1798.83 (“Shine the Light”) permits California residents to request certain information about disclosure of personal information to third parties for their direct marketing purposes. To make such a request, write to:

Customer Service
c/o Blyts, LLC
40 E Main St #1168
Newark, DE 19711

or email info@blyts.com.

CHILDREN

Castle Bravo is not intended for children under 13. We do not knowingly collect personal information from children under 13. If you believe we have collected such information, contact us and we will take reasonable steps to delete it.

If a platform or local law requires a higher minimum age for this type of content, you must meet that age requirement as well.

HOW TO ACCESS, UPDATE, OR DELETE YOUR INFORMATION

Because Castle Bravo accounts are primarily identifier-based rather than email/password accounts:

Language and many preferences can be changed in the Service settings.
Push notifications can be disabled in the Service and/or device settings.
Advertising consent / do-not-sell preferences can be changed where the Service provides those controls (you may need to clear or reset stored consent on device if a reset control is not yet available).
To request access, correction, or deletion of personal information associated with your play, email info@blyts.com with subject line “Privacy Request” and include your chat_id if you have it, the platform you use (web / iOS / Android), and enough detail for us to locate your records.

We will respond within thirty (30) days where required, or sooner when practicable. We may retain certain records when required by law or for legitimate business purposes (for example fraud prevention or support history). Message content already processed by AI providers may not be fully retrievable from those providers after the fact.

YOUR CHOICES

You may use companion websites without starting a play session; some features require the app/game client.
You may decline personalized ads; the Service may still show non-personalized ads where ads are part of the free experience.
You may decline push notification permission; story progress still works, but you may miss alerts when the app is closed.
You may request deletion of your account data as described above.

SECURITY

We implement reasonable administrative, technical, and organizational measures to protect information. No method of transmission or storage is completely secure. Transmission of data over the Internet is at your own risk. Keep your device secure; anyone with access to your device or local storage may be able to access your local game session.

INTERNATIONAL TRANSFERS

Information may be stored, processed, and transferred in the United States and other countries where we or our service providers operate. Those countries may have different data protection laws than your jurisdiction. By using the Service, you understand that your information may be transferred to and processed in such locations. Where required, we take steps designed to provide appropriate safeguards for cross-border transfers.

CHANGES TO THIS PRIVACY POLICY

If we make material changes, we will update the “Last Updated” date and provide notice by posting the revised policy on blyts.com, castlebravo.org, in the Service, and/or by other reasonable means. Your continued use of the Service after the effective date of changes means you accept the updated policy. Please review this page periodically.

RIGHT TO ACCESS

Users in certain jurisdictions have rights to access, correct, or delete personal information, subject to applicable law. To exercise those rights, contact info@blyts.com. We may decline requests that are frivolous, jeopardize others’ privacy, are extremely impractical, or are not required by law. Deleted information may remain in backups or archives for a limited period.

REGION-SPECIFIC ADDENDUM

Canada

Personal information maintained and processed by us and our service providers in the U.S. or other jurisdictions may be subject to lawful access by courts or authorities in those jurisdictions. We will not provide your information to third parties for their marketing purposes without your prior consent where required.

Japan

We comply with applicable Japanese laws, including the Act on the Protection of Personal Information, where they apply. We will not provide your information to third parties for their marketing purposes without your prior consent where required.

European Economic Area / Switzerland / UK

Where these laws apply, we process personal information as needed to provide the Service you request, with your consent (for example personalized ads or push notifications), and/or for legitimate interests such as securing and improving the Service, balanced against your rights. You may have rights of access, rectification, erasure, restriction, objection, and portability, and the right to lodge a complaint with a supervisory authority. Contact info@blyts.com to exercise rights.

CONTACT US

Questions, comments, or concerns about this Privacy Policy:

Email: info@blyts.com

We will seek to respond to complaints within 30 days.