YSNH Games

Terms of Service

Terms of Service

Game: Grow with the Dungeon Operator: YSNH Games (a sole proprietorship operated from Japan) Contact: grow.w.t.dungeon@gmail.com Effective Date: 2026-06-14 Last Updated: 2026-06-14


1. Acceptance of Terms

By creating an account, downloading the client, or accessing Grow with the Dungeon (“the Service”), you (“you”, “your”, or “user”) agree to be bound by these Terms of Service (“Terms”). If you do not agree, you may not use the Service.

The Service is operated by YSNH Games, a sole proprietorship located in Japan (“we”, “us”, or “our”). The operator’s full legal name is available upon written request for legitimate legal or regulatory purposes; please contact grow.w.t.dungeon@gmail.com.

2. Description of the Service

Grow with the Dungeon is a free-to-play 2D multiplayer online role-playing game distributed via itch.io and operated on servers maintained by YSNH Games.

The Service is provided “as is” with no guarantees of availability, performance, or suitability for any particular purpose. See Sections 9 and 10 for detailed disclaimers.

3. Eligibility

To use the Service, you must:

If you are under the age of majority in your jurisdiction (typically 18 or 20), you affirm that your parent or legal guardian has reviewed and agreed to these Terms on your behalf.

4. Account

4.1 Account creation

You create an account by signing in with your Google Account via Google OAuth. You may create up to 4 characters per account. Character names must comply with our naming rules (Section 6).

4.2 Account security

You are responsible for maintaining the security of your Google Account, which is used to access the Service. We are not liable for any loss, damage, or unauthorized access resulting from compromised Google Account credentials.

4.3 One-person-one-account principle

You may only create one account per person. Operating multiple accounts to gain unfair advantages, circumvent bans, or otherwise abuse the Service is prohibited (Section 7).

4.4 Account deletion

You may delete your account at any time through the in-game “Account Settings” panel, or by contacting us at grow.w.t.dungeon@gmail.com. Deletion is irreversible (see Privacy Policy Section 6).

5. User Conduct

You agree not to:

5.1 Cheating and exploitation

5.2 Harassment and toxicity

5.3 Commercial activity

5.4 Illegal activity

We reserve the right (and may be legally obligated) to report suspected criminal activity to relevant law enforcement authorities and to preserve associated chat, bulletin, and account logs as evidence for as long as legally required (see Privacy Policy Section 4 — Legal hold exception).

5.5 Other prohibited conduct

5.6 Supported languages for in-game communication

To ensure effective content moderation by our small operations team, in-game chat messages, bulletin board posts, and character names must use English or Japanese.

We welcome players from any country or region who can communicate in these languages. Supported character scripts include: Latin letters and Arabic numerals, common punctuation, hiragana, katakana, and CJK Unified Ideographs (kanji).

Content in other scripts (such as Hangul, Cyrillic, Arabic, Devanagari, Thai, etc.) is not currently supported and will be rejected by the system with a notification message. We may expand supported languages in the future as our moderation capacity grows.

6. Character Names and User-Generated Content

6.1 Character names

Character names must:

We reserve the right to rename or reject any character name that violates these rules, even after creation.

6.2 User-generated content (chat, bulletin board)

Content you create through chat messages, bulletin board posts, or other features:

You are solely responsible for content you create. We are not liable for user-generated content.

7. Enforcement

7.1 Violations

If you violate these Terms, we may, at our sole discretion and without prior notice:

7.2 No requirement for prior notice or explanation

We are under no obligation to notify you in advance or provide detailed explanations for enforcement actions. However, we generally aim to act proportionally and transparently.

7.3 Appeals

If you believe an enforcement action was made in error, you may appeal by emailing grow.w.t.dungeon@gmail.com with:

Appeals are reviewed on a best-effort basis. Response times may range from several days to several weeks. We are not obligated to reverse any decision.

7.4 Reporting violations

If you observe other players violating these Terms (e.g., harassment, threats, illegal content) — whether in chat, bulletin board posts, character names, or any other communication feature — you may report them through either of the following channels:

For emergencies involving immediate threats to life or safety, please contact local emergency services first (e.g., 110 in Japan, 911 in the US). We are not equipped to respond to real-world emergencies in real time.

We review reports on a best-effort basis. Submitting a report does not guarantee any specific action will be taken. Note that bulletin board posts are automatically deleted after 7 days (see Privacy Policy Section 4); time-sensitive reports about bulletin content should be submitted promptly. The underlying chat.log record (which mirrors bulletin posts) is retained for 365 days for audit purposes.

8. Intellectual Property

8.1 Our intellectual property

The Service, including all game code, art assets (sprites, tiles, UI), music, sound effects, character designs, world design, story, and other creative content, is the property of YSNH Games or its licensors. All rights are reserved.

You may not:

8.2 Third-party assets and licenses

The Service incorporates third-party assets used under their respective licenses, including:

Full license text is displayed in the in-game “Licenses” panel.

8.3 Fan content

We generally permit non-commercial fan content (fan art, fan fiction, streaming, video creation) referencing the Service, provided:

We reserve the right to request removal of fan content at our discretion.

9. Disclaimers

9.1 “As is” basis

THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE” WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, OR ANY WARRANTY THAT THE SERVICE WILL BE UNINTERRUPTED, ERROR-FREE, OR FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS.

9.2 No guarantee of availability

We do not guarantee that the Service will be available at all times. Server outages, maintenance, network issues, or other circumstances may cause temporary or extended interruptions without prior notice.

9.3 No guarantee of data preservation

While we take reasonable measures to preserve player data, we cannot guarantee that character data, items, currency, or other in-game progress will not be lost due to server crashes, bugs, hardware failures, or other technical issues. Data is saved periodically (typically every 15 minutes); up to 15 minutes of progress may be lost in the event of a server crash.

9.4 Player interactions

The Service allows non-combat interactions between players, including:

Direct player-vs-player combat is not implemented; players cannot damage each other. However, we are not responsible for disputes, losses, or harm arising from any player-to-player interactions, including but not limited to: in-game trades, chat conflicts, bulletin board disputes, or off-platform interactions originating from in-game contact.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL YSNH GAMES, ITS OPERATOR, OR ANY AFFILIATES BE LIABLE FOR ANY:

OUR TOTAL LIABILITY TO YOU FOR ANY CLAIM ARISING OUT OF OR RELATED TO THE SERVICE SHALL NOT EXCEED THE AMOUNT YOU HAVE PAID TO US IN THE 12 MONTHS PRECEDING THE CLAIM. As the Service is provided free of charge and you have paid us no consideration, this limit is effectively JPY 0 (zero Japanese yen).

Nothing in these Terms limits our liability where such limitation is prohibited by applicable law, including but not limited to liability arising from our intentional misconduct or gross negligence, liability for death or personal injury caused by our negligence, or any other liability that cannot lawfully be excluded or limited. In particular, under the Consumer Contract Act of Japan (Act No. 61 of 2000), provisions purporting to exclude all liability of a business operator, or to exclude liability for intentional or grossly negligent acts, are void to that extent.

Some jurisdictions do not allow the exclusion or limitation of certain damages. In such jurisdictions, our liability is limited to the maximum extent permitted by law.

11. Changes to the Service

11.1 Updates and modifications

We reserve the right to modify, update, or change the Service at any time, including:

Significant changes will be announced via in-game notifications and the itch.io devlog. Continued use of the Service after changes constitutes acceptance of the modifications.

11.2 Future monetization

The Service is currently free of charge. However, we may introduce paid features, subscription tiers, in-game purchases, or transition the Service to a paid model in the future. Reasons may include:

We will provide at least 30 days’ advance notice before introducing any paid features. Existing free players will be informed via in-game announcement and itch.io devlog. You may delete your account before monetization takes effect if you object.

If paid features are introduced in the future, additional terms, payment conditions, refund policies, and legally required disclosures (including but not limited to the Act on Specified Commercial Transactions of Japan, and any applicable disclosures concerning prepaid in-game currency under the Payment Services Act) will be provided before such features become available.

Any pre-existing in-game progress, items, or currency at the time of monetization will be retained according to a transition policy announced at that time. No specific commitments are made regarding the form of such transition.

11.3 Service termination

We reserve the right to discontinue the Service at any time, including but not limited to the following circumstances:

In the event of Service termination, we will:

You acknowledge and accept that, as a free service with no paid contract, NO COMPENSATION, REFUND, OR TRANSFER will be provided in the event of Service termination, modifications, interruptions, or data loss. This includes any in-game items, currency, character progress, or other digital content.

No character data export is provided. In-game progress data (characters, items, currency, etc.) has no value or utility outside the Service. We do not export, transfer, or preserve such data beyond what is needed for normal Service operation. You acknowledge that all in-game progress will be permanently and irrecoverably lost upon Service termination.

By using the Service, you accept the inherent risks of using a free game operated by a small indie developer, including the possibility that the Service may not continue indefinitely.

12. Termination of Your Access

We may suspend or terminate your access to the Service at any time, with or without notice, if we determine you have violated these Terms or for any other reason at our sole discretion. Upon termination:

13. Governing Law and Jurisdiction

These Terms are governed by and construed in accordance with the laws of Japan, without regard to its conflict-of-laws principles.

Any dispute arising out of or related to the Service or these Terms shall be subject to the exclusive jurisdiction of the courts located in Japan, specifically the district court having jurisdiction over the operator’s residence.

If you reside outside Japan, you waive any objection to this jurisdiction and forum.

14. General Provisions

14.1 Entire agreement

These Terms, together with the Privacy Policy and any other policies referenced herein, constitute the entire agreement between you and YSNH Games regarding the Service.

14.2 Severability

If any provision of these Terms is held to be invalid or unenforceable, the remaining provisions shall remain in full force and effect.

14.3 No waiver

Our failure to enforce any provision of these Terms shall not constitute a waiver of that provision or any other provision.

14.4 Assignment

You may not assign or transfer your rights under these Terms. We may assign our rights and obligations to a successor entity (e.g., in the event of incorporation or acquisition) without your consent.

14.5 No agency

Nothing in these Terms creates any agency, partnership, joint venture, or employment relationship between you and YSNH Games.

14.6 Force majeure

We are not liable for any failure to perform our obligations due to causes beyond our reasonable control, including natural disasters, war, terrorism, civil unrest, government action, network failures, or other force majeure events.

15. Support and Contact

YSNH Games is operated by a single individual alongside other professional commitments. We cannot guarantee real-time or rapid response to inquiries. Please understand that response times may range from several days to several weeks.

For all formal communications (appeals, legal notices, data subject requests), please use email.


These Terms of Service are provided in English only. For users with language barriers, please use translation tools or contact us for clarification. Upon request, we may provide a Japanese translation for convenience; however, the English version governs in case of any inconsistency.

By using the Service, you confirm that you have read, understood, and agreed to these Terms of Service and the accompanying Privacy Policy.