RURK — Privacy Policy

Last updated: 2 June 2026 · Effective for app version 1.5.3 and later.

1. What this is

RURK (Radical Universal Roleplay Kit) is an Android companion application for the RURK tabletop role-playing game system, developed by Evgenii Lisovskii (the «Developer»). This document explains exactly what information the app handles. Short version: no personal data leaves your device; the app cannot reach any server controlled by the Developer.

2. Data we do NOT collect

• No account, sign-in, or username — RURK has no online identity layer.
• No analytics SDK is integrated (no Firebase Analytics, Google Analytics, Crashlytics, Amplitude, Mixpanel, AppsFlyer, etc.).
• No advertising SDK is integrated. No ads are shown.
• No location, contacts, microphone, camera, calendar, SMS, call log, accelerometer, or other sensor data is read.
• No personal data is transmitted to any server controlled by the Developer or to any third party.
• No tracking identifier (advertising ID, Android ID, Firebase Installation ID, etc.) is read or transmitted.

3. Network permissions and how they are used

RURK declares the following Android permissions in its manifest:

• android.permission.INTERNET
• android.permission.ACCESS_NETWORK_STATE
• android.permission.ACCESS_WIFI_STATE
• android.permission.CHANGE_WIFI_MULTICAST_STATE

These permissions are used exclusively for the optional local Wi-Fi multiplayer feature: when a game master and players are sitting at the same table and connected to the same local Wi-Fi network, the app can establish a peer-to-peer link between their devices to share session timers, dice rolls, clues, and short text messages. Specifically:

• The master device opens a local TCP ServerSocket on a system-assigned port and publishes a service via Android's Network Service Discovery (NSD) with the name RURK-<PIN>, where <PIN> is a 4-digit code shown only on the master's screen.
• Player devices, on the same Wi-Fi network, scan for the service via NSD and connect using the PIN.
• Once connected, devices exchange short newline-delimited strings (e.g. TIMER:60, ROLL:42, CLUE:…, TXT:…) directly between each other.
• No data passes through any server. No outbound internet connection is established to any host controlled by the Developer. The local session traffic stays on your Wi-Fi network and never reaches the public internet.

You can use the entire application without ever activating the local-multiplayer feature; in that case no network traffic is generated at all.

4. Data the app stores locally on YOUR device

To make the app useful, the app saves the following on your device only, using Android's standard DataStore Preferences and the app's private file storage:

• Your chosen interface language (en / ru / vi)
• Your character sheets (attributes, skills, perks, inventory, name and short biographical notes that YOU wrote about your character)
• Your custom modules, scenarios, settings, and any custom content you author within the app
• Saved game-session state (timers, last-roll history, GM notes you wrote for yourself)
• Reading progress in the rulebook

This data never leaves the device. It is deleted automatically when you uninstall RURK. There is no cloud sync, no automatic backup to the Developer's servers, no telemetry of any kind.

Google Play backup: Android's standard auto-backup feature, if enabled by the user in their Google Account settings, may include the app's data directory in the user's encrypted Google Drive backup. This is a service operated by Google, governed by Google's own privacy policy; the Developer has no access to it. You can disable auto-backup for RURK in your Android system settings at any time.

5. Custom-content imports

RURK allows you to import custom content (modules, scenarios, images) from your device's file system using Android's standard Storage Access Framework / Photo Picker. When you do so:

• The app reads only files you explicitly select via the system file picker.
• Imported files are copied to the app's private storage and never transmitted off-device.
• The app does not scan, index, or analyse any other files on your device.

6. Permissions the app does NOT request

• No camera permission. RURK does not access your camera.
• No microphone permission. RURK does not record audio.
• No location permission.
• No contacts permission.
• No SMS / call-log permission.

7. Children

RURK contains literary content (vignettes, story fragments) intended for an adult audience and discussing themes such as violence, mortality, and the supernatural in a tabletop-RPG context. The app is suitable for ages 16+ in our classification. Because no personal data is collected from any user regardless of age, RURK is automatically compliant with COPPA, GDPR-K, and analogous regulations protecting children's privacy.

8. Third-party content and trademarks

The literary content of RURK (lore, vignettes, characters, settings, including but not limited to the «ORPP» modern paranormal Russia setting and the «Eternal City» fantasy setting) is original work by the Developer and contributors. Any resemblance to real persons, institutions, brand names, or works in third-party copyright is either coincidental, used as historical or cultural reference under fair-use principles, or licensed.

If you are a rights-holder with a concern about any specific piece of content, write to elyssov@gmail.com and the matter will be resolved promptly.

9. Changes to this policy

If a future version of RURK ever introduces analytics, ads, online sync, or any other data-collection mechanism that this policy does not currently disclose, this policy will be updated to disclose precisely what is collected and why, and an in-app notice will be shown before any such data leaves your device.

10. Contact

Evgenii Lisovskii
elyssov@gmail.com

This page is hosted at elyssov.github.io/rurk-policy/privacy.html and is the canonical, version-controlled location of the policy.