Terms & Conditions

Last updated: 7 November 2026

These Terms & Conditions ("Terms") govern your download and use of Dual Play (the "App"), a mobile game application published by Md. Risul Islam Munna ("I", "me", "my"), based in Dhaka, Bangladesh. By installing or using the App, you agree to these Terms. If you do not agree, please do not use the App.

1. Licence to use the App

I grant you a personal, limited, non-exclusive, non-transferable, revocable licence to install and use the App on devices you own or control, for your own private, non-commercial entertainment. This licence does not transfer any ownership in the App to you.

2. What you may not do

• Copy, modify, translate, or create derivative works of the App, except where this is expressly permitted by law.
• Reverse engineer, decompile, or disassemble the App, or attempt to extract its source code, except to the limited extent applicable law expressly allows.
• Rent, lease, sell, sublicense, or otherwise commercially exploit the App.
• Remove or obscure any proprietary notices in the App.
• Use the App to break any law, to infringe anyone's rights, or to interfere with, disrupt, or attempt to gain unauthorised access to any device, network, or service — including other players' devices during local multiplayer.
• Use automated means, cheats, or exploits to gain an unfair advantage in multiplayer, or otherwise abuse, harass, or harm other players (including through the in-match voice feature).

3. Distribution and installation

For Android, the App is distributed through the Google Play Store. Your download and use of the App is also subject to the Google Play Terms of Service and any other terms of the store you obtained it from. If there is a conflict between those store terms and these Terms as they relate to the store's own rights, the store terms prevail for that limited purpose.

An iPhone or iPad build, where offered, is provided directly — for example through Apple's TestFlight service or as a downloadable file — and not through the Apple App Store. Installing software from outside an official app store is done at your own risk: such builds may be time-limited, may stop working when their provisioning or beta period expires, receive updates manually rather than automatically, and are provided on the "as is" basis set out in section 10. Only install a build from a link I have given you directly.

A browser version is offered at games.munna.dev/dual-play/play/. It is part of the "App" for these Terms. Which games and features it includes may differ from the Android app and may change — for example, Wi-Fi multiplayer and voice chat are only in the Android app — and it depends on your browser supporting it.

4. Offline play, local multiplayer and voice chat

You can play against the App's bots or with someone on the same device without an internet connection. Local multiplayer is not internet multiplayer: it only works between devices on the same Wi-Fi network or hotspot, and whether two devices can find and reach each other depends on the network (some public, office or guest networks block it).

The App can discover and connect to other players on the same local Wi-Fi network or hotspot, and can enable optional voice chat between connected devices. You are responsible for your own conduct on these connections. Only enable local network and microphone access on networks and with people you trust. The microphone is off by default and you can turn voice chat off at any time. See the Privacy Policy for how these features handle data.

Your photos in Sliding Puzzle. If you choose one of your own photos as a puzzle picture, only use a picture you have the right to use. In a Wi-Fi match, the picture you choose is sent to the other player's phone so they can solve it — do not choose anything you would not want them to see, and do not use the feature to send content that is unlawful, offensive or that infringes anyone's rights. You are responsible for the pictures you choose.

5. Advertising

The App is free and is supported by advertising served through Google AdMob. Ads appear as banners on game screens, occasional full-screen ads shown when you leave a finished single-player match, and optional "rewarded" ads that you may choose to watch in exchange for an in-game hint. Watching a rewarded ad is entirely your choice and is never required to keep playing. Advertisements are provided by third parties, and I do not endorse and am not responsible for the content of any ad or any website or product it links to. Your interaction with advertisers is solely between you and them. Ad providers may process certain device and usage data, and a consent choice is shown where required, as described in the Privacy Policy.

6. Announcements and notifications

The App may send you notifications about new games, updates, gameplay tips, and occasional promotions or offers. A promotional notification may contain a link that opens another app, a store listing, or a third-party website, which I do not control and am not responsible for. Notifications are delivered through Google Firebase Cloud Messaging as a single broadcast to all devices that have notifications enabled — they are not targeted to you individually. The App may also schedule friendly reminders on your own device when you have not opened it for a while; these are created locally, need no account and are not sent from a server. You can turn notifications and reminders off at any time in your device settings, and doing so will not affect your ability to play. The App may also occasionally ask whether you would like to rate it; you are never required to. The App also downloads a small public configuration file from this website on launch to display in-app announcements and update prompts; this is a one-way download that sends none of your data. See the Privacy Policy for how these features handle data.

7. Intellectual property

The App — including its code, design, artwork, animations, text, the "Dual Play" name and logo, and its selection and arrangement of content — is owned by me and is protected by intellectual-property laws. Tic Tac Toe, Four in a Row, Ludo, Dots and Boxes, Memory Match, Bagh-Bandi, Sholo Guti and the sliding-tile puzzle behind Sliding Puzzle are traditional games or puzzles in the public domain; Color Connect is an original implementation of a path-connection puzzle genre, and the pictures bundled with Sliding Puzzle are original artwork; Wall Block is an original implementation of a Quoridor-style abstract strategy game; and Shape Crack is an original implementation of a code-breaking puzzle genre (in the style of games such as Mastermind), with its own shapes, artwork and rules presentation. My rights are in this particular implementation and presentation of them, not in the abstract rules of the games themselves.

8. Third-party services

The App uses third-party services including Google AdMob (advertising), Google Firebase Cloud Messaging (broadcast notifications), Google Analytics for Firebase (usage analytics, on by default; in the European Union you accept the Privacy Policy on first launch to use the App — I use the resulting event-level and aggregated usage information to understand and improve the App, as described in the Privacy Policy) and Google Play (the optional in-app rating sheet), and it retrieves a configuration file hosted on this website. It does not integrate a crash-reporting service; if one is added, the Privacy Policy and the Google Play Data safety disclosure will be updated first. These services are governed by their own terms and privacy policies. I am not responsible for the practices of these third parties beyond my own configuration of their services.

9. Updates and availability

I may release updates, and may add, change, or remove features (including games, modes, the multiplayer and voice features, or notifications) at any time. I may also suspend or discontinue the App, in whole or in part, without liability to you. I do not guarantee that the App will always be available, uninterrupted, or error-free, or that it will work on every device, operating-system version, browser or network.

Game Scores, your Overall Score, leagues, achievements and other progress are for fun only. They are stored on your device, have no monetary value, cannot be exchanged for anything, and may be lost if you clear the App's data or uninstall it. How they are calculated may change in updates.

10. Disclaimer of warranties

The App is provided "as is" and "as available", without warranties of any kind, whether express, implied, or statutory, including any implied warranties of merchantability, fitness for a particular purpose, title, and non-infringement. I do not warrant that the App will meet your requirements, that defects will be corrected, or that the App or your device will be free of harm arising from its use. Some jurisdictions do not allow the exclusion of certain warranties, so some of the above may not apply to you.

11. Limitation of liability

To the maximum extent permitted by law, I will not be liable for any indirect, incidental, special, consequential, or punitive damages, or for any loss of data, profits, goodwill, or device functionality, arising out of or relating to your use of (or inability to use) the App, even if advised of the possibility of such damages. To the maximum extent permitted by law, my total aggregate liability relating to the App will not exceed the amount you paid for the App, which for a free app is zero. Nothing in these Terms excludes or limits liability that cannot lawfully be excluded or limited.

12. Indemnity

You agree to indemnify and hold me harmless from any claims, damages, liabilities, and expenses (including reasonable legal fees) arising from your misuse of the App or your breach of these Terms.

13. Children

The App does not require an account and does not knowingly collect personal information from children. If you are below the age of majority in your jurisdiction, please use the App with the involvement of a parent or guardian.

14. Changes to these Terms

I may update these Terms from time to time. When I do, I will change the "Last updated" date above and post the revised Terms at this URL. Significant changes may also be signalled in the App or its store listing. Your continued use of the App after changes take effect means you accept the updated Terms.

15. Governing law

These Terms are governed by the laws of the People's Republic of Bangladesh, without regard to its conflict-of-laws rules. The courts located in Dhaka, Bangladesh will have exclusive jurisdiction over any dispute arising out of or relating to these Terms or the App, subject to any mandatory consumer-protection rights you have in your country of residence.

16. Contact

Questions about these Terms? Email [email protected] or use the contact page.