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The Endlessness

Legal

Terms of Service

Effective: 29 October 2026Version: 1.0Operator: The Endlessness

These Terms of Service (the "Terms") form a binding contract between you and The Endlessness, the operator of The Endlessness (the "Service"). Read them carefully. Section 13 preserves your statutory right of withdrawal as an EU consumer, and section 19 explains how liability is allocated between us. If you do not accept any part of these Terms, do not use the Service. This version applies to accounts created on or after 29 October 2026, and to accounts created before that date from 30 November 2026.

1. Acceptance of these Terms

By creating an account, clicking "I agree", or using any part of the Service, you confirm that you have read, understood and agreed to these Terms and to the Privacy Policy, the Acceptable Use Policy, the Cookie Policy, and the Refund Policy, each of which is incorporated into these Terms by reference. If you use the Service on behalf of an organisation, you confirm that you have authority to bind that organisation.

2. Definitions

  • "We", "us", "our": The Endlessness, operator of The Endlessness, reachable at Rua Visconde Seabra nº27, 1600-766 Lisbon, Portugal, email info@theendlessness.com.
  • "You", "user": any person who creates an account or otherwise uses the Service.
  • "Service": the website at https://theendlessness.com, the web application at https://app.theendlessness.com, and any related software, content, APIs, and support channels we make available.
  • "User Content": anything you submit, create, or upload through the Service, including character data, campaign narratives, prompts, notes and images.
  • "AI Output": text generated by the Service in response to your inputs, including narrative responses, rules adjudications and dice narrations.
  • "Subscription": a paid plan described at https://theendlessness.com/pricing.
  • "Consumer": a natural person acting outside their trade, business, craft or profession, within the meaning of Portuguese Decreto-Lei no. 24/2014 and Directive 2011/83/EU.

3. Eligibility

You must be at least 18 years old, and an adult in your country of residence, to create an account or use the Service. The Service is made for adults and contains mature content (see section 8). We may refuse service, close accounts, or remove content if we reasonably believe the account holder does not meet this age requirement.

The Service is not available in countries where our provision of it would be unlawful. You are responsible for checking that your use of the Service complies with the law of your country of residence.

4. Accounts and security

  • You are responsible for maintaining the confidentiality of your credentials and for every action taken under your account.
  • You agree to give us accurate registration information and to keep it up to date.
  • You must tell us without delay if you suspect your account has been compromised, by writing to info@theendlessness.com.
  • You may not create an account using another person's identity, nor may you share your account with others in a way that exceeds the usage limits of your plan.

5. The Service we provide

The Endlessnessis an AI-powered application for playing Dungeons & Dragons 5th Edition. It generates narrative text, keeps track of character and campaign state, and helps you play using rules based on the D&D 5e System Reference Document 5.2.1. The Dungeon Master is an AI that makes rulings and can get them wrong (see section 8). The precise features available depend on your Subscription tier. We may add, remove, or change features from time to time, subject to section 16.

6. Licence we grant to you

Subject to your compliance with these Terms, we grant you a personal, limited, non-exclusive, non-transferable, non-sublicensable and revocable licence to access and use the Service for your own non-commercial enjoyment of tabletop role-playing. This licence does not include any right to:

  • resell, redistribute, rent, lease or sublicense the Service or any part of it;
  • scrape, crawl, or otherwise extract data from the Service except as we expressly permit;
  • train or fine-tune machine learning models on any part of the Service or on AI Output;
  • reverse engineer, decompile, or disassemble any software provided as part of the Service, except to the extent the law expressly allows despite this clause;
  • remove, alter or obscure any proprietary notice.

7. Your content

You keep all intellectual property rights in your User Content. To run the Service, you grant us a worldwide, royalty-free, non- exclusive licence to host, store, reproduce, transmit, adapt (including for formatting and display), and create derivative works of your User Content strictly as needed to:

  • operate and improve the Service,
  • generate AI Output in response to your inputs,
  • show it to the people you play with or choose to share it with,
  • enforce these Terms and apply safety measures,
  • comply with legal obligations.

This licence ends when you delete your account, except where (a) it is reasonably necessary to retain backups for limited periods, (b) the content has already been shared with another user who has a valid reason to keep it, or (c) we must retain it to comply with law.

You are solely responsible for your User Content. You confirm that it does not infringe anyone's rights, does not break the law, and does not violate the Acceptable Use Policy.

Uploads and imported material

You may upload material, such as books, adventure documents, maps or character sheets, only if you own it or have the right to use it in this way. Uploaded material is processed so that you can play with it privately: we do not publish it or show it to other users unless you choose to share it. You are responsible for what you upload. We may refuse or remove an upload, or limit the import features, if we believe an upload infringes someone's rights.

Keep your own copies

We take reasonable care of your campaigns and characters, but we do not guarantee that any content will be preserved. We may delete the content of an account that has been inactive for 24 months, after telling you by email at least 30 days in advance.

8. AI-generated output

AI Output is generated on the fly by models that can produce inaccurate, biased, offensive, or made-up content. It is for entertainment and creative use only. Do not rely on it for medical, legal, financial, safety-critical, or any other decision with real- world consequences. We do not guarantee that AI Output is accurate, complete, current, lawful, or fit for any particular purpose.

Subject to the rest of these Terms, we assign to you any rights we may have in the AI Output generated in response to your inputs, to the maximum extent such rights exist. Because AI Output may not be protectable by copyright in every jurisdiction, we cannot guarantee that you will have exclusive rights in any given piece of output. AI Output generated for other users may be similar or identical to yours. You are responsible for any use you make of AI Output, including verifying that you have the right to use it in your chosen context.

We do not use your User Content or AI Output to train AI models. The AI providers we use receive your inputs in order to generate AI Output, and their own terms govern what else they may do with that data. Section 6 of the Privacy Policy lists them. If we ever want to use your content to train AI models, we will tell you in advance and give you a choice.

You give us a worldwide, royalty-free, non-exclusive licence to use AI Output generated for you as needed to run the Service, including showing it to the people you play with or choose to share it with.

An AI Dungeon Master, and mature fiction

The Dungeon Master is an AI system, not a person. Its stories are fiction for adults and can include violence, death, cruelty and sexual themes, described without explicit detail. You decide what your character does, and you can stop at any time. AI Output does not reflect our views.

The Dungeon Master's rulings

Like any Dungeon Master, the AI makes rulings: it interprets the rules, sometimes bends them for the sake of the story, and sometimes gets them wrong. Dice rolls and rulings stand once they are made. A ruling you disagree with, or an outcome you did not want, is part of the game and not a defect in the Service. You can report a mistake with "Fix a problem" or "Report a bug" in the app.

Characters, items and other game state

Characters, items, gold, experience, levels and other game state are part of the Service and are not your property. They have no monetary value and cannot be sold, transferred, or exchanged for anything outside the Service. We may adjust, restore, reset or remove game state to fix errors, to undo exploits or abuse, or to keep the game working. Except where the law requires otherwise, we are not liable for lost or changed game state.

Turns, credits and limits

Plans include allowances such as turns and fix credits. Daily allowances reset at midnight UTC, do not roll over, have no cash value and cannot be transferred. A turn that fails because of an error on our side may be restored at our discretion. We may change allowances as described in section 16.

9. Acceptable use

You must follow our Acceptable Use Policy, which sets out the content and conduct that is not allowed on the Service. Breach of that policy is a material breach of these Terms and may lead to the measures described in section 17.

Playing with others, and automated screening

Content written by other players belongs to them, and we do not review it in advance. We do not tolerate harassment of other users. You can block players and report content in the app. The Service screens actions automatically, and an automated check may decline an action. If you think a decision affecting your account is wrong, write to us and a person will review it.

10. D&D SRD and third-party trademarks

This product includes material from the System Reference Document 5.2.1 (the "SRD 5.2.1") by Wizards of the Coast LLC, available at https://dnd.wizards.com/resources/systems-reference-document and licensed under the Creative Commons Attribution 4.0 International Licence (https://creativecommons.org/licenses/by/4.0/legalcode). The Endlessnessis an independent product and is not affiliated with, endorsed, or sponsored by Wizards of the Coast LLC. "Dungeons & Dragons", "D&D", and their associated logos are trademarks of Wizards of the Coast LLC and are used here solely for nominative reference to the rule system.

11. Fees, plans and billing

Subscriptions are offered at the prices listed at https://theendlessness.com/pricing, in the currency indicated. Listed prices do not include VAT or other taxes, which are calculated for your country and shown at checkout before you pay.

Subscriptions bought through our checkout are sold either by us or by our reseller, Stripe (through its Link service), as shown on your receipt. Where Stripe is the seller, its own terms also govern payment, billing and its refund process, alongside your statutory rights and these Terms. By subscribing you authorise the seller to charge the payment method on file for the recurring Subscription fee on each renewal date until you cancel. If a payment fails, the charge may be retried and, after a grace period, we may downgrade your account to the free tier or suspend access.

12. Renewal, upgrades and downgrades

Subscriptions renew automatically at the end of each billing period for another period of the same length, at the then-current price, unless you cancel before the renewal date. You can cancel from the billing section of your account at any time. Cancellation takes effect at the end of the current paid period, and you keep access until then.

If you upgrade mid-period, the new plan takes effect immediately and we charge the pro-rated difference. If you downgrade, the change takes effect at the end of the current period. We will tell you in advance about any price increase and give you a reasonable chance to cancel before the new price applies.

13. Right of withdrawal for EU consumers

If you are a Consumer in the EU or EEA, you have the right to withdraw from a Subscription within 14 days of the contract date, without giving any reason, under Portuguese Decreto-Lei no. 24/2014 and Directive 2011/83/EU. If you withdraw within that period, you receive a full refund of the fee for that Subscription. How to withdraw, and a model withdrawal form, are in the Refund Policy.

14. Refunds

Our refund practice, beyond the statutory withdrawal right, is set out in the Refund Policy. Nothing in these Terms removes your mandatory statutory rights.

15. Free tier and beta features

The free tier is offered free of charge. We may change the quotas or features of the free tier, or discontinue it, with reasonable notice. Features marked "beta", "preview" or "experimental" are provided "as is" so that you can try them. We may change or remove beta features without notice. Your feedback on beta features is welcomed and will be used, in a non-personal form, to improve the Service.

16. Availability and changes

We do our best to keep the Service available at all times, but we do not guarantee uninterrupted availability. We may plan maintenance, push updates, or roll back changes to protect users, comply with law, or fix security issues. We may also change features, limits or pricing with reasonable advance notice to affected users.

Where a change materially reduces a Subscriber's benefits during a paid period, the Subscriber can cancel the Subscription and obtain a pro-rated refund for the unused portion, as allowed by EU consumer law.

We may change the AI models, providers and instructions behind the Service at any time, and the style, length and quality of AI Output can change as a result. Where such a change materially reduces what a paid plan offers, the previous paragraph applies.

17. Suspension and termination

We may suspend or close your account, remove User Content, or restrict specific features if:

  • you materially breach these Terms or the Acceptable Use Policy,
  • we reasonably suspect fraud, abuse, chargebacks, or a security risk to other users,
  • a payment fails and is not resolved within a reasonable grace period,
  • we are required to do so by law or a binding order of a competent authority.

Where appropriate, we will give you notice and a chance to explain or fix the issue before taking action, unless the breach is serious or the law or the safety of other users requires us to act at once. You can close your account at any time by writing to info@theendlessness.com or using the deletion option in your settings. Closure ends your licence to use the Service. Clauses that by their nature survive termination (including sections 7, 8, 19, 20, 21 and 28) will continue to apply.

18. Warranties and consumer guarantees

Outside of mandatory consumer law, the Service and all AI Output are provided "as is" and "as available", without any warranty of merchantability, fitness for a particular purpose, title, or non- infringement. We do not warrant that the Service will be error-free, uninterrupted, or free of harmful components.

Nothing in these Terms excludes, limits, or restricts any right or remedy that cannot be excluded, limited or restricted under Portuguese law or EU consumer law. In particular, nothing here affects the statutory guarantees of conformity under Decreto-Lei no. 84/2021, which implements Directive (EU) 2019/770 on contracts for the supply of digital content and digital services.

19. Limitation of liability

To the maximum extent permitted by law, and except as provided in the next paragraph, our total aggregate liability to you under or in connection with these Terms and the Service, whether in contract, tort (including negligence), breach of statutory duty, or otherwise, is limited to the greater of:

  • the total fees paid by you to us for the Service during the 12 months immediately before the event giving rise to the claim, or
  • one hundred euros (EUR 100).

We exclude liability for indirect, incidental, consequential, special, or punitive damages, loss of profits, loss of revenue, loss of goodwill, loss or corruption of data, or loss of opportunity, even if we have been advised of the possibility of such damage.

Nothing in these Terms limits or excludes our liability for:

  • death or personal injury caused by our negligence,
  • gross negligence or wilful misconduct,
  • fraud or fraudulent misrepresentation,
  • any liability that cannot be limited or excluded under Portuguese law or mandatory EU consumer law.

20. Your indemnity

You agree to indemnify and hold The Endlessness, its affiliates, officers, employees and contractors harmless from any third-party claim, loss, damage, or reasonable legal cost arising from (a) your User Content, (b) your breach of these Terms or any policy incorporated into them, or (c) your infringement of any third-party right. This clause does not apply to Consumers to the extent that applicable law prohibits such an indemnity.

21. Our intellectual property

Except for (i) User Content, (ii) the SRD 5.2.1 material referred to in section 10, and (iii) material and components that belong to third parties, all rights in the Service, including the underlying software, prompts, brand, logo, and our other original content, are owned by us or our licensors. Nothing in these Terms transfers those rights to you. If you send us feedback or ideas, we may use them freely and without any obligation to you.

23. Privacy

Our handling of your personal data is governed by the Privacy Policy, which forms part of these Terms.

24. Third-party services

The Service integrates with third-party providers (for example, for authentication, payments, hosting, and email). Your use of those providers is subject to their own terms and privacy policies. We are not responsible for third-party services, except as required by law.

25. Force majeure

Neither party is liable for failure or delay in performing its obligations (other than payment obligations) caused by events outside its reasonable control, including acts of war, terrorism, natural disasters, epidemics, strikes, power failures, or interruptions of the internet or third-party services. The affected party will use reasonable efforts to resume performance.

26. Assignment

You may not transfer or assign these Terms without our prior written consent. We may transfer or assign these Terms, in whole or in part, in connection with a merger, acquisition, restructuring, or sale of assets, provided that the transferee assumes our obligations to you. If you are a Consumer, the transfer will not reduce your rights.

27. Notices

We send notices to the email address linked to your account and, where appropriate, through the Service. You send notices to us by email at info@theendlessness.com or by post to The Endlessness, Rua Visconde Seabra nº27, 1600-766 Lisbon, Portugal. A notice is deemed received on the next business day after sending.

28. Governing law and courts

These Terms are governed by the law of Portugal, excluding its conflict-of-law rules and excluding the 1980 UN Convention on Contracts for the International Sale of Goods. The courts of the district of Lisbon have exclusive jurisdiction over any dispute, without prejudice to any other competent court where the law makes that choice mandatory.

If you are a Consumer resident in another country of the EU or EEA, you also benefit from any mandatory protections of the law of your country of residence under Article 6 of Regulation (EC) No 593/2008 (Rome I), and you may bring proceedings in the courts of your place of domicile under Article 18(1) of Regulation (EU) No 1215/2012.

29. Out-of-court dispute resolution

We are not obliged to, and do not currently commit to, participate in any specific alternative dispute resolution entity for consumer disputes within the meaning of Portuguese Law no. 144/2015. For information on the Portuguese consumer dispute resolution entities that serve your region, please consult www.consumidor.gov.pt or your local Centro de Arbitragem de Conflitos de Consumo. You can always contact us first at info@theendlessness.com and we will try to resolve the issue in good faith.

30. Changes to these Terms

We may update these Terms to reflect changes in the Service, in applicable law, or in our business. For non-material changes, the update takes effect on the date shown at the top of the Terms. For material changes, we will notify active users by email or through the Service at least 30 days before the new version takes effect, or as much notice as the law requires if longer. If you do not agree with a material change, you may close your account before the new version applies and we will refund the unused portion of any paid period.

31. Final clauses

  • Entire agreement. These Terms, together with the policies they refer to, are the entire agreement between you and us concerning the Service and replace any prior agreement on the same subject.
  • Severability. If any provision of these Terms is found invalid or unenforceable, the rest stays in effect. The invalid provision will be replaced with a valid one that matches its intent as closely as the law allows.
  • No waiver. A failure or delay by either party to enforce any right is not a waiver of that right.
  • Language. The English version of these Terms is the authoritative version. Any translation is provided for convenience only.
  • Headings. Headings are for reference only and do not affect interpretation.

Questions about this document

Write to info@theendlessness.com or by post to The Endlessness, Rua Visconde Seabra nº27, 1600-766 Lisbon, Portugal. We answer in English or Portuguese.