Tracktion Engine End User License Agreement


Welcome to Tracktion Engine! This Tracktion Engine end-user licence agreement (Agreement) is a legal agreement between you (Licensee or you) and Tracktion Software Corporation (Tracktion, Licensor, us or we) for the Tracktion Engine, which includes source code for the engine, tests and examples. For the purposes of this Agreement, Tracktion Engine Education, Personal, Indie, Pro 1, 2 & 3 and Enterprise, shall be described as “Code”.

  • If you are accepting the terms of this Agreement on behalf of a company or other legal entity, you represent and warrant that you have the authority to bind that company or other legal entity to the terms of this Agreement and, in such event, “you” and “Licensee” will refer to that company or other legal entity.
  • You affirm that you are at least 18 years of age. If you are not 18 years of age but you are at least the age of 13, you may use the Tracktion Engine only if your parent or guardian agrees to be bound by this Agreement. Parents and guardians of users under the age of 18 agree to the terms of this Agreement, and any reference to “you” shall include the parent or guardian.

You should print a copy of this Licence for future reference.

Each Tracktion Engine licence comes with similar, yet slightly different features, which are fully explained in the chart found here. A truncated version of the chart is found directly below.

Pro 1
Pro 2
Pro 3
Branding Powered by Tracktion Engine Powered by Tracktion Engine Optional Branding Optional Branding Optional Branding Optional Branding Powered by Tracktion Engine
Revenue or funding limit $50k $200k $400k $2M $10M No limit No limit
Minimum commitment None 12 months 12 months 12 months 12 months 12 months None
Support Forum Support Forum Support Forum Support Forum Support Forum Support Premium Support Forum Support

Each type of Tracktion Engine licence also comes with different Minimum Commitments, Revenue Limits and Fees, as discussed below.


There are different licences and options for use of the Tracktion Engine, and each licence has different Minimum Commitments, Revenue Limits and features. To see the full set of features and functionality of each licence, please visit The following describes the Minimum Commitments and Revenue Limits for each licence. Minimum Commitments are based on gross revenue, meaning all monies collected, including through funding, whether it be received in connection with your Tracktion Engine Applications or not, without offsets of any kind.

Tracktion Engine Personal

Tracktion Engine Personal comes with one licence seat and aims to provide individuals with the opportunity to utilize Tracktion Engine free of charge. We provide this licensing option to grow the base of developers who can engage with Tracktion Engine and explore its capabilities. To this end, there is no Minimum Commitment. However, you may only use your Tracktion Engine Personal to release Applications up to a Revenue Limit of $50,000 (USD or currency conversion equivalent). This means that if gross revenue is generated or raised by you in the amount of $50,000 or more, which is gross revenue, without offsets of any kind and based on overall monies collected, then you may only continue to release your Application in connection with your Tracktion Engine Personal licence if (a) you license your Application as an open-source project under the GNU License, as further described in clause 1.8 below, or (b) you upgrade to Tracktion Engine Indie or Tracktion Engine Enterprise, as applicable. If you don’t want to release your Application under the GNU License, then you must upgrade to either Tracktion Engine Indie, Tracktion Engine Pro or Tracktion Engine Enterprise.

Tracktion Engine Indie

Tracktion Engine Indie is for smaller companies and teams generating less than a Revenue Limit of $200k per year in gross revenue or funding. Companies qualifying for Tracktion Engine Indie can acquire multiple licenses for $35/month per developer under the subscription plan. We require a 12-month Minimum Commitment for the Tracktion Engine Indie subscription plan. You may release Applications with your Tracktion Engine Indie licence up to a Revenue Limit of $200,000. This means that if your company’s total gross revenue earned or raised exceeds $200,000, then you will be required to either upgrade to Tracktion Engine Enterprise, license your Application as an open-source project under the GNU License, or stop using the Program and distributing your Applications.

Tracktion Engine Pro (1, 2 & 3)

Tracktion Engine Pro (variants 1, 2 & 3) are for growing companies. The terms are the same as per the Tracktion Engine Indie but the per-seat cost and revenue/funding limits differ as per the table above.

Tracktion Engine Enterprise

Tracktion Engine Enterprise is for businesses and teams and is offered on customer specific terms that can be customized to fit the needs of the project. Contact Tracktion Software Corporation for more details and pricing.

Tracktion Engine Education

Tracktion Engine Education is offered to bona fide educational institutions and comes with a number of seats as requested by the educational institution. Tracktion Engine Education is free and does not come with any Minimum Commitments or Revenue Limits. You agree to submit any requested documentation to show proof of a bona fide educational institute.

What is the GNU General Public License?

If you exceed your Revenue Limit for Tracktion Engine Personal, then your Applications will be released under the open-source GNU General Public License v.3 as described in this Agreement.

During the term of this Agreement, you expressly acknowledge and agree that if you are a Tracktion Engine Personal, Tracktion Engine Indie, Tracktion Engine Enterprise, or Tracktion Engine Education user and the Revenue Limit thresholds, above, are exceeded, then you may no longer use that tier of the Program, and you must either: (a) purchase a different Tracktion Engine licence (if eligible); (b) or cease distributing your Applications; or (c) license your Applications under the GNU General Public License. We may monitor your compliance with and enforce these restrictions and requirements as described in clause 10.4 below.

  1. Grant and scope of Licence 

1.1. Each Tracktion Engine licence includes New Features and Minor Updates for that specific Tracktion Engine license, but does not include New Releases.

1.2. Each Tracktion Engine licence comes with a specific number of seats for users to utilize the Code, and you agree that only one user may utilize the Code per seat offered in your specific Tracktion Engine licence for the purposes of coding and development. 

1.3. You may not use Tracktion Engine Personal, Tracktion Engine Indie, Tracktion Engine Pro (1, 2, or 3), Tracktion Engine Enterprise or Tracktion Engine Education simultaneously. You may not combine or integrate your Licensee Content developed with one tier of the Code (e.g., Tracktion Engine Personal) simultaneously with any of your Licensee Content that you develop with another tier (e.g., Tracktion Engine Indie or Tracktion Engine Enterprise).

1.4. You may sell or distribute Applications using the Code that incorporates your Licensee Content to end users, provided that you adhere to the terms in this Agreement, including paying applicable Fees once you hit your Revenue Limit. You may not sell, sublicense, or otherwise distribute the Code or Software on their own.

1.5. Where you have licensed Tracktion Engine Education, you may be requested to provide certain documentation before being approved, and Tracktion Software Corporation reserves the right in its sole discretion to decline authorization for Tracktion Engine Education.

1.6. Remember, unless you upgrade to Tracktion Engine Indie, Tracktion Engine Pro (1, 2, or 3) or Tracktion Engine Enterprise, if you exceed the Revenue Limit for Tracktion Engine Personal, then your Tracktion Engine Personal licence is governed by the GNU License which is an open-source licence and requires, among other things, that you make your source code available and license modified files and larger derived works (including all linked code) under the same terms of the GNU License. Please review the terms of the GNU License carefully.

1.7 You may not create Applications directed toward Children, unless you fully comply with the COPPA rules, including without limitation obtaining verifiable parental consent, as further described in clause 10 below. You are responsible for any liabilities arising out of a violation of COPPA.

1.8. Each particular type of Tracktion Engine license comes with certain features as is described further in this chart, including adding Tracktion Engine branding if you have the Tracktion Engine Personal, Tracktion Engine Indie or Tracktion Engine Education license.

1.9. If you subcontract development of an Application, you must have at least one Tracktion Engine license of a suitable type (matching revenue/funding limits as per the table) in order to distribute Applications.

1.10. If a New Release of Tracktion Engine is made, any support will be for the New Release.

  1. Restrictions

Except as expressly set out in this Agreement or as permitted by any local law, you undertake:

2.1. to comply with all applicable laws, including all technology control or export laws and regulations;

2.2. to supervise and control use of the Code and ensure that the Code is used by your employees and representatives in accordance with the terms of this Agreement;

2.3. not to use the Code in connection with any Licensee Content, Application or otherwise that infringes or misappropriates any third party right, including any intellectual property, property, privacy, contract or other proprietary right or for any other illegal or immoral purpose;

  1. Fees and Minimum Commitments.

3.1. Where you have purchased a Tracktion Engine subscription licence, you agree to pay the subscription Fee from the first day of purchase, and recurring every month on the same day, for the Minimum Commitment, where applicable.

3.2. The subscription Fee shall be the Fee as notified to you on the Website at the time you purchase the Tracktion Engine subscription licence.

3.3. All payments of Fees are non-refundable.

3.4. All Fees payable under this Agreement are exclusive of VAT or any relevant local sales taxes, for which you shall be responsible.

3.5. Without limiting all available remedies, in the event Tracktion Software Corporation discovers that you have exceeded your Revenue Limit in breach of this Agreement, you shall be liable for the amount of Fees due if you had properly purchased a Tracktion Engine licence, the amount of any audit, and internal administration costs in the amount of no less than $1,000 USD.

  1. Support

4.1. We shall have no obligation to provide support and maintenance services to you. You may participate in our online support forum in accordance with our forum policies in place from time to time. Further support and maintenance services may be offered at our sole discretion, and may be offered as a feature of the Tracktion Engine licence you purchase. 

4.2. You acknowledge and agree that we have no obligation under this Agreement to provide New Features, Minor Updates, or New Releases.

  1. Intellectual Property Rights

5.1. You shall own all modifications you make to the Code, and all Intellectual Property Rights therein, that are created and incorporated in the Application, subject to our continuing ownership of the Code and all associated Intellectual Property Rights of the Code.


6.1. The Code is provided “as is” without warranty of any kind, including without limitation any warranties that the Code will be uninterrupted, error-free or otherwise free from infringement. All other conditions, warranties or other terms whether express or implied, or incorporated into this Agreement or any collateral contract, whether by statute, common law or otherwise, including without limitation warranty of merchantability or fitness for a particular purpose are hereby excluded to the fullest extent permitted by law, including the implied conditions, warranties or other terms as to satisfactory quality, fitness for purpose or the use of reasonable skill and care.

6.2. You acknowledge that the Code has not been developed to meet your individual requirements and that it is therefore your responsibility to ensure that the facilities and functions of the Code meet your requirements.


7.1. Neither Tracktion Software Corporation nor its parent company, subsidiaries, employees, partners or contractors shall in any circumstances whatsoever be liable to you, whether in contract, tort (including negligence), breach of statutory duty, or otherwise, arising under or in connection with this Agreement for any indirect, consequential or special loss or damage, including but not limited to, for:

7.1.1. loss of profits, sales, business, or revenue; business interruption; 7.1.2. loss of anticipated savings; 7.1.3. loss or corruption of content, data or information; 7.1.4. loss of business opportunity, goodwill or reputation; 7.1.6. any indirect or consequential loss or damage; or 7.1.7. any computer failure or malfunction, corruption to or loss of data or files, or any and all other commercial damage or loss.

7.2. Nothing in this Agreement shall limit or exclude our liability for: 7.2.1. death or personal injury resulting from our negligence; 7.2.2. fraud or fraudulent misrepresentation; 7.2.3. any other liability that cannot be excluded or limited by law.

7.3. Subject to clause 7.1 and 7.2, our maximum aggregate liability under or in connection with this Agreement whether in contract, tort (including negligence) or otherwise, shall in all circumstances be limited to the Fees paid by you to Tracktion Software Corporation in the month before the claim arose or $15, whichever is greater.

7.4. You agree to indemnify, defend and hold us and our licensors, partners, affiliates, contractors, officers, directors, employees and agents harmless from any third party claims, liabilities, losses, costs and expenses (including legal expenses) or otherwise arising directly or indirectly from (i) the Licensee Content or your Applications; (ii) your use, handling, or operation of the Program otherwise than in accordance with this Agreement, or (iii) any violation of applicable laws by you, including without limitation COPPA violations.

7.5. This clause 7 shall survive and shall not be rendered ineffective by the termination or expiry of this Agreement for whatever reason.

  1. Term and Termination

8.1. Where you have purchased a Tracktion Engine subscription licence, this Agreement shall remain in effect for the Minimum Commitment and shall renew automatically on a monthly basis following expiry of the Minimum Commitment, subject to payment of any applicable Fees.

8.2. Where you have licensed a Tracktion Engine Education licence, this Agreement shall renew automatically on a monthly basis and remain in effect until the Tracktion Engine Education licence is terminated or you no longer qualify for the Tracktion Engine Education licence.

8.3. Where you have purchased a subscription licence and you fail to pay the subscription Fee when it falls due then your Tracktion Engine licence will terminate. Where your licence is terminated before the end of the Minimum Commitment then you, in any event, are still responsible for paying the subscription Fee for the remaining term of the Minimum Commitment.

8.4. We may terminate this Agreement immediately by written notice to you if you commit a breach of this Agreement which you fail to remedy (if remediable) within 14 days after written notice requiring you to do so.

8.5. Upon termination for any reason:

8.5.1. all rights granted to you under this Agreement shall cease 

8.5.2. you must cease all activities authorized by this Agreement, including distribution of your Application that incorporates the Code; 

8.5.2 you must immediately delete or remove the Code from all computer equipment in your possession and immediately destroy or return to us (at our option) all copies of the Code then in your possession, custody or control and, in the case of destruction, certify to us that you have done so.

  1. Communications Between Us

9.1. If you wish to contact us in writing, or if any condition in this Agreement requires you to give us notice in writing, you can send this to us by e-mail at [email protected]. We will confirm receipt of this by contacting you in writing, normally by e-mail.

9.2. If we have to contact you or give you notice in writing, we will do so by the email associated with your Tracktion Engine licence or by pre-paid post to the address you provide to us in your order for the Program.

  1. Data, Privacy and Publicity

10.2. You may not use the Code in connection with any Application that may be “directed to children” as defined under the Children’s Online Privacy Protection Act (“COPPA”) unless you fully comply with COPPA and all other similar applicable laws. You are fully liable for, and will defend, hold harmless and indemnify Tracktion Software Corporation and its affiliates against any and all liability arising from or relating to COPPA in connection with any Application directed to Children.

10.3. You agree that Tracktion Software Corporation may use your name and logo to publicize that you are using the Tracktion Engine Code in your Applications. You may opt-out of this publicity by emailing Tracktion Software Corporation at [email protected] and we will use best efforts to remove all uses of your name or logo within a commercially reasonable time.

10.4 To ensure compliance with this Agreement, you agree that within thirty (30) days from the date of our request, you shall provide all pertinent records and information requested in order to verify that your installation and use of any and all Programs is in compliance with this Agreement, along with a signed verification that all such information is complete and correct. You also agree we may audit applicable records concerning your use of Program during normal business hours upon notice to you, at our cost, except in the event the audit reveals an underpayment or breach of this Agreement, you shall be liable for the cost of the audit.

  1. Other Important Terms

11.1. We may transfer our rights and obligations under this Agreement to another organisation, but this will not affect your rights or our obligations under this Agreement. 11.2. You may transfer your rights or your obligations under this Agreement to another person or entity provided that you are in full compliance with this Agreement and provided that you first contact Tracktion Software Corporation in writing and follow the required steps for transfer.

11.3.This Agreement and any document expressly referred to in it constitutes the entire agreement between you and us. You acknowledge that you have not relied on any statement, promise or representation made or given by or on behalf of us which is not set out in this Agreement or any document expressly referred to in it.

11.4. If we fail to insist that you perform any of your obligations under this Agreement, or if we do not enforce our rights against you, or if we delay in doing so, that will not mean that we have waived our rights against you and will not mean that you do not have to comply with those obligations. If we do waive a default by you, we will only do so in writing, and that will not mean that we will automatically waive any later default by you.

11.5. Each of the conditions of this Agreement operates separately. If any court or competent authority decides that any of them are unlawful or unenforceable, the remaining conditions will remain in full force and effect.

11.6. Governing Law and Jurisdiction.

11.6.1. If you are a US citizen, this Licence shall be governed by the laws of Washington State without regard to its conflict of laws rules and you consent to the exclusive jurisdiction of the state and federal courts located in King County. 

11.6.2. If you live outside the US, you agree to the laws and jurisdiction of Washington State as noted above in clause 11.6.1 above. 

11.6.4. You may have additional rights as a consumer under your local law.

  1. Definitions. The definitions and rules of interpretation in this clause apply in this Licence:

12.1. Application(s): desktop or mobile applications developed using the Tracktion Engine Code, which incorporates the Licensee Content.

12.2. Code: means the Tracktion Engine code, specifically, Tracktion Engine Personal, Tracktion Engine Enterprise, Tracktion Engine Indie, Tracktion Engine Education, and any New Features and Minor Updates thereto.

12.3. COPPA: means the Children’s Online Privacy Protection Act of 1998, 15 U.S.C. 6501–6505, as may be updated and amended.

12.4. Children: mean children under the age of 13, or as otherwise defined by applicable law.

12.5. Customizations: mean the enhancements, modifications, improvements, or any other changes made by Tracktion Software Corporation to either Tracktion Engine or the Licensee code, as specified.

12.6. Fee: the licence fee payable by you to us for use of the Program as detailed further in clause 3 and on the Website.

12.7. GNU License: the GNU General Public License v.3, which governs the terms of your Tracktion Engine Personal or Indie license if you exceed the Revenue Limit.

12.9. Intellectual Property Rights: patents, utility models, rights to inventions, copyright and related rights, trademarks and service marks, trade names and domain names, rights in get-up, goodwill and the right to sue for passing off or unfair competition, rights in designs, rights in computer software, database rights, rights to preserve the confidentiality of information (including know-how and trade secrets) and any other intellectual property rights, including all applications for (and rights to apply for and be granted), renewals or extensions of, and rights to claim priority from, such rights and all similar or equivalent rights or forms of protection which subsist or will subsist, now or in the future, in any part of the world.

12.10. Licensee Content: any content created, owned or used by the Licensee in connection with the Program.

12.11. Minimum Commitment: the minimum length of time you must license your Tracktion Engine Code in order to be eligible for the Tracktion Engine licence, depending on the type of your Tracktion Engine licence.

12.12. Minor Update: any release of bug fixes and small improvements within the same version of the Tracktion Engine Code licensed by you (e.g., Tracktion Engine 1.1 to Tracktion Engine 1.2).

12.13. New Features: any release of a new feature within the same version of the Tracktion Engine Code licensed by you, but not including New Releases (e.g., Tracktion Engine 1 to Tracktion Engine 2) or other features not included in your specific type of Tracktion Engine license.

12.14. New Releases: any new release of a new version of the Tracktion Engine Code, that is not included in this license Agreement, which contains such significant differences from the previous versions as to be generally accepted in the marketplace as constituting a new product (e.g., Tracktion Engine 1 to Tracktion Engine 2).

12.15. Revenue Limit: the total gross annual revenue limit in USD (or the currency conversion equivalent thereof), of a business, whether it be a sole trader, team, or registered company, which shall be calculated as any and all revenue raised, donated towards, earned, or otherwise received in connection with your business, whether or not in connection with your Applications, before your Tracktion Engine licence requires either payment or separate license terms.

12.16. Website: means, and its associated webpages.