Terms of Service
Last updated November 2, 2026
These terms cover your use of Onceworlds (onceworlds.com and onceworldsusercontent.com). By using Onceworlds you agree to them and to the Privacy Policy.
1. Who can use Onceworlds
You must meet the minimum age for online services where you live. You're responsible for your account and everything done with it.
2. Playing games
Games are made by independent creators, not by Onceworlds. We review some games before they're listed (new creators' first public games wait for approval), but not every game. Play at your own discretion, and use Report on a game's page, in the menu or on a profile for anything that breaks these rules (you can also write to support@onceworlds.com).
3. Publishing games
- You keep ownership of what you publish. You give Onceworlds a worldwide, non-exclusive, royalty-free license to host, run, copy, display and distribute your game, its media and its store page on Onceworlds for as long as it's published there.
- Players can remix a public game: copy it into a game of their own on Onceworlds, change it, and publish it, with a link back to yours. You allow that for each public game of yours, and for remixes already made, unless you turn Remixes off in its Settings.
- You must have the rights to everything you publish, including code, art, music and trademarks.
- You're responsible for your game, including what it does, the data it handles and its use of third-party services. When your game uses your API keys through Onceworlds, you're responsible for that usage and its cost. Any player of your game can trigger those calls within the limits shown in your dashboard.
- Selling on Onceworlds also follows the Seller terms.
4. Rules
Don't publish, upload or do anything on Onceworlds that:
- is illegal, or promotes illegal activity;
- sexually exploits or endangers minors. We report it to the authorities;
- is sexually explicit, or shows graphic violence, gore or self-harm;
- harasses, threatens or promotes hate against people;
- phishes for passwords or personal data, or pretends to be Onceworlds, GitHub or anyone else;
- contains malware, mines cryptocurrency, or tries to harm players' devices or accounts;
- collects players' personal data without their clear consent;
- infringes someone else's intellectual property;
- spams, or tries to get around our limits, security or the isolation between games;
- uses Onceworlds to host or distribute files that aren't part of a game.
5. Enforcement
We may remove games or content, limit features, filter or delete chat, block networks, or suspend accounts at any time, especially to protect players. We may not be able to tell you in advance. Games that many players report may be hidden while we look.
6. Copyright complaints
If you believe a game or item infringes your copyright, send a notice with the copyright form (or email support@onceworlds.com) with: the work you believe is infringed, the item's link, your contact details, a statement that you believe in good faith the use isn't authorized, a statement under penalty of perjury that your notice is accurate and that you're the owner or authorized to act for them, and your signature. We remove infringing content and tell its seller, who may send a counter-notice; the item then comes back after 10 business days unless the claimant tells us they've gone to court. Buyers of an item taken down get refunds for purchases in the 60 days before. Sellers with three upheld takedowns can't sell any more, and we may close the accounts of repeat infringers.
7. The service and credits
Playing and publishing on Onceworlds are free. The AI that builds your games is free for your first game, up to a limit (for accounts with a verified email or GitHub), and after that uses credits, which you can buy on the Pricing page at the prices shown there (tax may be added). Only someone 18 or older, or a parent or guardian, may buy them. Pro renews every month until you cancel it in Settings → Billing, and a month's credits end when the next month starts; credits from a pack don't expire. Credits have no cash value and can't be transferred. If a payment is refunded, the credits it bought are taken back as far as they're unspent. Deleting your account cancels Pro and ends its credits. Stripe handles payments.
Onceworlds is provided "as is" and "as available", without warranties of any kind. Limits on storage, requests and API calls apply and can change. We may change or stop any part of the service.
8. Buying
- Onceworlds sells paid games and items for their creators: you pay Onceworlds, and the item is delivered on Onceworlds. Prices are in US dollars, and tax is added at checkout. You need an account, and you must be 18 or older, or a parent or guardian. For now we sell only to billing addresses in the United States.
- You buy a license to use the item yourself, under the license shown on its page. It stays in your account, where you play or download it. You can't resell or share it.
- You get the item right away, so you agree it can't be cancelled for 14 days, except under the refund policy below.
Refunds
- Instant: within 48 hours of buying, if you downloaded nothing and played under 2 minutes, refund it yourself in Settings → Purchases.
- Requested: otherwise, within 90 days of buying, ask on the order page and say why. The seller answers within 7 days; with no answer, or if you contest their decline within 7 days, we decide. Items not as described, broken or missing files are refunded. Changing your mind after using an item isn't a reason for a refund.
- A refund returns the price and tax to your card and ends your access to the item.
- Buyers who refund often (more than 3 times in 90 days, or over 30% of their orders) can still ask, but lose instant refunds.
- We also refund purchases for fraud, for items taken down for copyright within 60 days of buying (section 6), and for sales we can't deliver.
- Disputing a payment with your bank ends your access to the item. An account whose payment is taken back that way can't buy again.
9. Liability
To the fullest extent the law allows, Onceworlds isn't liable for indirect, incidental, special, consequential or punitive damages, or for loss of data, profits or goodwill. Our total liability for any claim about the service is limited to US$50.
10. Ending
You can stop using Onceworlds at any time and ask us to delete your account. We may end your access if you break these terms.
11. Changes
We'll post changes here and update the date above. If you keep using Onceworlds after a change, the new terms apply.