Licence agreement

This agreement is between you and HM Studio, Budapest, Hungary, the maker of Citylith. It covers how you may use Citylith and what you build with it. You accept it when you download Citylith or activate it with a licence key.

1. Buying Citylith

• Citylith is sold through Stripe. Link (Stripe) is the seller of record: it takes the payment, adds the tax that applies where you live, sends the receipt and invoices, and runs the subscription. HM Studio gives you the licence below and supports the software.
• Prices are in US dollars before tax, as shown on the pricing page when you buy.
• The founders price is for people on the waitlist. It applies to the first year only, with the personal code we sent you, for one purchase, until the date in your invitation.

2. Your plan

• Every plan is a yearly subscription. It renews automatically every year at the plan's normal yearly price until you cancel. We email you before each renewal.
• Cancel any time on your account page. Your plan keeps working until the end of the year you paid for. After that you can no longer start new builds.
• What each plan builds (area size, tiles, whole cities, building detail and extras) is listed on the pricing page at the time you buy or renew.
• Each plan includes new areas up to a monthly total: Basic 20 km², Pro 200 km², Studio 500 km² per calendar month. Rebuilding an area you built in the last 30 days does not count.
• Basic is for one person, or a team of two, with less than $100,000 in yearly revenue.

3. Computers and sharing

• Basic runs on one computer, Pro on two. Studio runs on one computer per seat at a time; a seat frees itself within 12 hours after 3ds Max closes.
• You can move your licence to another computer from the Licence window in Citylith, up to 3 times in 30 days. Changed computers more often? Write to us.
• A licence is for you, or for the people using your Studio seats. Do not share your key. Each computer runs one session at a time. We check for keys used by more people than the plan allows, as the privacy notice describes, and may stop such a licence after we contact you.

4. What you build

• While your plan is paid, you may use the scenes you build in any personal or commercial project: renders, animations, presentations, competitions and client deliveries.
• You may not sell or share the 3D files themselves, for example on model stores, or offer them as a dataset.
• When your plan ends because you did not renew or you cancelled, the scenes you built stay yours under these terms. They open, edit and render as before.
• Every build contains data from OpenStreetMap and other open and government sources, each under its own licence. Keep the credits that come with every build and show them where those licences ask. This agreement does not limit what those licences allow you to do with the data itself.

5. Refunds

• Within 14 days of your first purchase you get a full refund if Citylith does not run on your computer and we cannot fix it, or if you built no more than 0.5 km² in total.
• Within 14 days of a renewal you get a full refund of that renewal if you have not started a build since it.
• Otherwise payments are not refunded, except where the law requires it.
• To ask for a refund, write to info@citylith.com or to Link support.
• A refund ends the licence. Your subscription is cancelled and, as far as the law allows, you may no longer use the scenes built under the refunded licence: stop using them and delete them. The same applies when a payment is reversed through your bank; while such a dispute is open, the licence is paused.

6. Your right of withdrawal (consumers in the EU and UK)

If you buy as a consumer in the EU or the UK, you normally have 14 days to withdraw from a purchase. Citylith is digital content. Before your first download we ask you to agree that we start supplying it at once, and to confirm that you lose your right of withdrawal when the download starts. We confirm this by email. The refunds in section 5 still apply. Businesses have no legal right of withdrawal; section 5 applies to them too.

7. What you may not do

• Copy, sell, rent or sublicense Citylith or your licence key.
• Get around the licence checks, or change Citylith to do so.
• Reverse engineer Citylith, except where the law allows it.
• Use Citylith's data service other than through Citylith, for example to download its map data in bulk or to build another product.

8. Early Access, data and updates

• Citylith is in Early Access. Features may change, and we fix problems through updates included in your plan.
• Builds depend on open and government data. Coverage and quality differ from place to place (see coverage). Check an area before you build it for a client.
• Building needs an internet connection. We keep the data service running; short outages and maintenance can happen.
• If we stop Citylith during a year you paid for, we refund the unused part of that year.

9. Warranty and liability

Citylith is provided as it is, as far as the law allows. The data it uses can contain errors, so builds are for visualisation, not for engineering, surveying or navigation. HM Studio's liability is limited to what you paid for Citylith in the 12 months before the claim. This does not limit liability that cannot be limited by law, such as for intent or gross negligence, or the rights you have as a consumer.

10. Ending this agreement

You can end it at any time by cancelling your plan. We may end your licence if you seriously break this agreement, for example by sharing your key or getting around the licence checks. We tell you why first, and no refund is due in that case.

11. Changes and law

We may update this agreement for future renewals. We email you at least 30 days before a change that affects you, so you can cancel before it applies. This agreement is governed by Hungarian law. If you are a consumer, you also keep the protection of the mandatory laws of your country. For businesses, the courts of Budapest decide disputes.

Contact

HM Studio, Budapest, Hungary · info@citylith.com

Last updated 24 October 2026.