Last updated: January 1, 2026
By accessing and using the UnderworldProd website (underworldprod.com) and the browser-based game Super Ninja Adventure (collectively, the "Service"), you accept and agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, please do not use our Service.
We reserve the right to update or modify these Terms at any time without prior notice. Your continued use of the Service following any changes constitutes your acceptance of the revised Terms.
Our Service provides free, browser-based casual games for entertainment purposes. You may use the Service subject to the following conditions:
When using our Service, including the contact form and any future interactive features, you agree not to:
All content on the UnderworldProd website and within Super Ninja Adventure — including but not limited to text, graphics, logos, icons, images, audio clips, video clips, game code, and software — is the property of UnderworldProd or its content suppliers and is protected by international copyright, trademark, and other intellectual property laws.
You may not:
We grant you a limited, non-exclusive, non-transferable license to access and use the Service for personal, non-commercial entertainment purposes only.
Super Ninja Adventure is provided as a free, browser-based game. By playing the game, you agree to the following:
The Service is provided on an "as is" and "as available" basis without warranties of any kind, either express or implied. To the fullest extent permitted by law, UnderworldProd disclaims all warranties, including but not limited to:
You acknowledge that you use the Service at your own risk.
To the maximum extent permitted by applicable law, UnderworldProd and its directors, employees, partners, agents, suppliers, or affiliates shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including without limitation:
You agree to defend, indemnify, and hold harmless UnderworldProd and its affiliates, licensors, and service providers from and against any claims, damages, obligations, losses, liabilities, costs, or debt arising from your use of the Service or your violation of these Terms.
Our Service may contain links to third-party websites or services that are not owned or controlled by UnderworldProd. We have no control over, and assume no responsibility for, the content, privacy policies, or practices of any third-party websites or services. We encourage you to review the terms and privacy policies of any third-party websites you visit.
These Terms shall be governed by and construed in accordance with the laws of the Federal Republic of Germany, without regard to its conflict of law provisions. Any disputes arising under or in connection with these Terms shall be subject to the exclusive jurisdiction of the courts located in Berlin, Germany.
If any provision of these Terms is found to be unenforceable or invalid under applicable law, such unenforceability or invalidity shall not render these Terms unenforceable or invalid as a whole. Such provisions shall be deleted without affecting the remaining provisions herein.
We reserve the right to modify or replace these Terms at any time at our sole discretion. If a revision is material, we will make reasonable efforts to provide at least 30 days' notice prior to any new terms taking effect. What constitutes a material change will be determined at our sole discretion.
By continuing to access or use our Service after those revisions become effective, you agree to be bound by the revised terms.
If you have any questions about these Terms of Service, please contact us: