Terms of Service

Mystic Stride · Last updated November 1, 2026 · Version 2026-11-01-1

1. Agreeing to These Terms

These Terms of Service (“Terms”) are an agreement between you and Adieuu, LLC (“Adieuu”, “we”, “us”), the maker of Mystic Stride (the “game”). They apply when you play the game and when you use its online features (the “online services”). By playing, you agree to these Terms and to our Privacy Policy. If you don’t agree, please don’t play.

Parents and guardians: if a child plays the game, you agree to these Terms for them and are responsible for their use of it. If you’re under the age of majority where you live, a parent or guardian must agree to these Terms for you, and we ask that they read them with you before you play online.

2. The Game

Mystic Stride is free to play in a web browser (or, in the future, via downloadable mobile or desktop apps). There are no required purchases with real money and no ads. You can play without going online, and your progress is then saved only on your device. If you play online, your progress is also kept with your online account, so you can continue it on another device.

We may change, add or remove parts of the game, including levels, guardians, items and online features, at any time. We may also pause or end the online services, but we’ll try to give notice first.

3. Your Permission to Play

We give you a personal, non-exclusive, non-transferable permission to play the game for your own non-commercial enjoyment, as long as you follow these Terms. We may end this permission if you break them.

The game, including its art, characters, music, sounds, text and the name “Mystic Stride”, belongs to Adieuu or the people who license it to us. The game’s source code is published under its own license, which is found with the code; nothing in these Terms limits or extends the rights that license gives you over the code. Fonts in the game are used under the SIL Open Font License.

4. Online Play and Accounts

• It’s optional. Online play is off until you turn it on, and you can turn it off at any time.
• No personal information. Online accounts don’t use an email address or a typed password: you sign in with your player name and four secret pictures you pick from the game’s own pictures. Don’t try to put personal information anywhere in the game.
• Player names. Names are made from words we've curated, with the intent that names be appropriate for all ages. If a combination of words turns out to be hurtful or confusing, we may change it.
• Keep your pictures and codes safe. Your sign-in pictures and backup codes let anyone who has them into your account. Don’t share them with anyone but a parent or guardian. If you forget your pictures and lose your backup codes, we will not be able to restore your account for you.
• One account is yours. Don’t sell, trade or give away an account, or use someone else’s without their permission. With permission from the account owner (or their respective parent or legal guardian), sharing of accounts is expressly allowed as long as the other terms in this policy are followed.

5. Play Fair and Be Kind

When you play, you agree not to:

• cheat, including sending made-up or changed scores or runs, using bots or scripts to play for you, or using bugs to get an unfair advantage on leaderboards,
• hack, overload, scan, probe or attack the game or our servers, or attempt to get around our limits and security,
• pretend to be us or someone else, or bother, bully or upset other players,
• collect information about other players, or copy leaderboards or other data in bulk with automated tools,
• use the game for anything illegal or to sell anything, or
• use the game for anything beyond the general purpose of "playing the game" under normal circumstances, or
• help anyone else do these things.

If you find a bug or a security problem, please tell us at mysticstride@adieuu.com rather than using it. We’re grateful when you do!

6. Keeping Things Fair

To keep the game fair and safe, we may check runs and scores, and remove any that look made-up or broken. If someone breaks these Terms, we may reset their scores, change their player name, or pause or delete their online account. Where we can, we’ll explain why. If you think we made a mistake, contact us and we’ll take another look.

7. Things You Earn in the Game

Essence, guardians, cosmetics, stars and other things in the game have no value outside it. They can’t be sold, traded or exchanged for money, and we don’t owe you anything for them. Offline progress lives in your browser or local device: clearing your browser or device data will remove it (as may other actions on your system, including software updates or system changes), and we can't get it back if it. When a device first plays online with an account that already has progress, the account’s progress replaces the progress on that device. We may also change or rebalance things in the game at any time, at our discretion.

8. Ideas and Feedback

We love hearing from players. If you send us ideas or feedback, we may use them to improve the game without owing you anything (though we love to include easter eggs, mention in release notes, or otherwise credit players where and if we find it suitable). Please don’t put personal information in your messages, and kids should ask a grown-up/guardian before emailing us. For the safety of all involved, when receiving an email that appears to be from a child, we will not knowingly communicate with them beyond an initial response asking for their parent/guardian to communicate on their behalf.

9. Other Websites and Videos

Release notes may include YouTube videos, and the game may link to other websites. Those are run by others under their own terms and privacy policies, and we’re not responsible for them.

10. Stopping

You can stop playing at any time. To delete an online account, see “Your choices and rights” in our Privacy Policy. If we end your permission to play or delete your account, the parts of these Terms that by their nature should continue (such as sections 7, 11, 12 and 13) still apply.

11. The Game Is Provided “As Is”

We work hard to make the game fun and reliable, but we provide it “as is” and “as available”. To the fullest extent the law allows, we make no promises that it will always work, be free of bugs, keep your progress, or be available, and we disclaim all warranties, including implied warranties of merchantability, fitness for a particular purpose and non-infringement.

12. Limits on Our Responsibility

To the fullest extent the law allows, Adieuu won’t be responsible for indirect, incidental, special or consequential damages, or for lost progress, items or data, arising from the game or the online services. Because the game is free, our total responsibility for any claim about it is limited to fifty U.S. dollars (US$50). Some places don’t allow these limits, so they may not all apply to you. Nothing in these Terms takes away rights you have under consumer protection laws that can’t be waived.

13. Disagreements and the Law

If you have a problem with the game, please contact us first. Most problems can be sorted out quickly that way. These Terms are governed by the laws of the State of Texas, USA, without regard to its conflict-of-laws rules, and any dispute that can’t be resolved informally will be handled in the state or federal courts located in Tarrant County, Texas, unless the law where you live gives you the right to bring it in your local courts.

14. Changes to These Terms

We may update these Terms. When we do, we’ll change the date and version at the top. If you play online, the game will ask you to read and agree to the new version before you keep playing online. If you keep playing after a change, you accept the new Terms.

15. Other Things

These Terms, our Privacy Policy, and any other legal policies found in our Legal Policies page are the whole agreement between you and us about the game. If part of them can’t be enforced, the rest still applies. If we don’t enforce a part right away, we haven’t given up the right to later. You can’t transfer these Terms to anyone else; we may transfer them to a new owner of the game, who would have to keep them.

16. Contact Us

• Email: mysticstride@adieuu.com
• Mail: Adieuu, LLC, 1617 Park Place Ave, Suite 110 PMB AD, Fort Worth, TX 76110, USA