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DM Engine

Legal Documents & Policies

Privacy Policy

Effective date: May 1, 2025  ·  Last updated: May 1, 2025

Who We Are

DM Engine is an AI-powered Dungeon Master app for tabletop roleplaying game sessions. This policy explains what data we collect, how we use it, and what rights you have over it.

What We Collect

We collect only what is necessary to run the app:

  • Account information — your email address (or Apple ID token) used to create and authenticate your account.
  • Campaign & session data — character sheets, campaign settings, session history, and DM responses you create inside the app. This is stored in our database so your campaigns persist across devices.
  • Usage data — anonymous metrics such as session count and feature usage to help us improve the app. No personally identifiable information is attached to these metrics.

We do not collect your real name, phone number, location, or payment card details.

AI-Generated Content

Your player inputs and campaign context are sent to Anthropic's Claude API to generate DM responses. Anthropic processes this data under their own privacy policy. We do not use your session content to train our own models. We recommend you do not enter real personal information into campaign narratives.

Voice & Audio

When voice narration is enabled, DM response text is sent to ElevenLabs to generate audio. This is processed transiently and not stored by us. ElevenLabs processes this data under their own privacy policy.

Image Generation

When scene image generation is enabled, scene descriptions are sent to fal.ai to generate images. Images are not linked to your account and are processed transiently. fal.ai processes this data under their own privacy policy.

How We Use Your Data

  • To authenticate your account and keep your campaigns saved.
  • To generate AI Dungeon Master responses during your sessions.
  • To improve app stability and features using anonymous usage metrics.

We do not sell your data to third parties. We do not use your data for advertising.

Data Retention

Your campaign and session data is retained for as long as your account is active. You can delete your account at any time by contacting us at the address below, and all associated data will be removed within 30 days.

Children's Privacy

DM Engine is rated 17+ and is not directed at children under the age of 13. We do not knowingly collect data from anyone under 13. If you believe a child has provided us with personal information, contact us and we will delete it promptly.

Your Rights

You have the right to access, correct, export, or delete your personal data at any time. To make a request, contact us at the address below. We will respond within 30 days.

Security

We use industry-standard security practices including encrypted connections (TLS) and row-level security policies on our database. No method of transmission or storage is 100% secure, but we take reasonable steps to protect your data.

Changes to This Policy

If we make material changes to this policy, we will notify you via the app or email before the changes take effect. Continued use of the app after that point constitutes acceptance of the updated policy.

Terms of Service

Effective date: May 1, 2025  ·  Last updated: May 1, 2025

Acceptance

By downloading or using DM Engine, you agree to these Terms of Service. If you do not agree, do not use the app.

The Service

DM Engine provides an AI-powered Dungeon Master experience for tabletop roleplaying game sessions. The app uses third-party AI services to generate narrative content. Generated content is fictional and for entertainment purposes only.

AI-Generated Content

DM Engine uses artificial intelligence to generate game narrative, dialogue, and story content. This content is procedurally created and does not represent the views of DM Engine or its developer. AI-generated content may occasionally be inaccurate, inconsistent, or unexpected. You use it at your own discretion.

The app contains content rated 17+ including fantasy violence, dark themes, and mature narrative elements consistent with the tabletop roleplaying genre. The AI is designed to handle such content within fictional context only.

Acceptable Use

You agree not to use DM Engine to:

  • Attempt to generate content involving the sexual exploitation of minors.
  • Attempt to extract harmful real-world information through fictional framing.
  • Reverse engineer, scrape, or systematically extract content from the app.
  • Use the app in any way that violates applicable law.

We reserve the right to terminate accounts that violate these terms.

Intellectual Property

DM Engine is built on the D&D 5e Systems Reference Document (SRD 5.1) under the Creative Commons Attribution 4.0 International License. "Dungeons & Dragons" and related trademarks are property of Wizards of the Coast and are not affiliated with DM Engine.

Campaign and character content you create belongs to you. You grant us a limited license to store and process that content solely to provide the service.

Subscriptions & Purchases

DM Engine may offer paid subscription tiers and in-app purchases in the future. All purchases are processed through Apple's App Store. Refund requests are subject to Apple's refund policy. We do not process payments directly.

Disclaimer of Warranties

DM Engine is provided "as is" without warranties of any kind, express or implied. We do not warrant that the service will be uninterrupted, error-free, or that AI-generated content will meet any particular standard of quality.

Limitation of Liability

To the fullest extent permitted by law, DM Engine and its developer shall not be liable for any indirect, incidental, special, or consequential damages arising from your use of the app.

Changes to Terms

We may update these terms from time to time. We will notify you of material changes via the app or email. Continued use after notification constitutes acceptance.

Governing Law

These terms are governed by the laws of the State of California, without regard to conflict of law principles.

Contact

Get in Touch

For privacy requests, account deletion, or any questions about these policies, contact us at:

Email: support@dmengineapp.com

We aim to respond to all requests within 5 business days.