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Human-readable version (does not replace the official EULA)
Barotrauma is not to be mistaken for free software or open source in
a free-software activist understanding. Undertow Games retains the
copyright to the source code and art assets and you are allowed to
use them under the following conditions.
The source code, modifications or derivative works can be distributed
only if they are intended to be used as a mod for Barotrauma. You are
not allowed to create a standalone application, or use the code for
commercial purposes or in your own projects. You are not allowed to
remove or bypass Steam integration, SteamID authentication or any
other DRM measures from the code.
By making a pull request on Barotrauma's git repository, you are
stating that you're author of these changes or have rights to the
changes you've made and agree to give Undertow Games permission to
use, copy, modify, adapt, distribute, and publicly display that
content, for free or as part of a commercial arrangement.
The origin of this software must not be misrepresented; you must not
claim that you are the author of the original software. Derivative
works must be plainly marked as such, and must not be misrepresented
as being the original software.
Undertow Games reserves the right to change this license at any time
with or without notice, with immediate and/or retroactive effect.
If there's anything you don't understand or consider confusing,
please email us your questions or suggestions:
Tl;dr: the code is intended for developing mods for Barotrauma.
This is a legal agreement between you and Undertow Games. (“Undertow Games” “we” “us” “our”) for computer software, the data supplied with the software, and the associated media (Software) and online documents (Documents) that are necessary for the operation of the following game/s:
- Barotrauma (a Game/the Games)
1.1. We hereby grant to you a non-exclusive, non-transferable licence to use the Software and the Documents for your personal, non-commercial use (except where commercial use has been expressly permitted by us) on the terms of this Licence.
1.2. You may:
1.2.1. Download, install and use the Software for your personal purposes only and only for the purpose of the operation of the Game/s;
1.2.2. Provided you comply with the provisions in condition 2, copy the Software for back-up purposes only;
1.2.3. Receive and use any free supplementary software code or update of the Software as may be provided by us from time to time; and
1.2.4. Use any Documents in support of the use permitted under condition.
1.3. The Software may include access to various third party/Licensor tools that can be used to create content within a Game, edit the content of a Game and generally make modifications to the Software (Development Tools).
1.4. The Software is made available to you on an “open source” basis and therefore you may use the Development Tools to modify the Software and you may use, reproduce, publish, perform, display and distribute any modified Software you create in source or object form (subject to clauses 1.5 and 1.6 below) but solely on a non-commercial basis (except where commercial use has been expressly permitted by us) and solely in relation to the Game/s.
1.5. You must not misrepresent modified Software as the original Software and you agree to use all reasonable endeavours to credit us as the owners of the Software and modified Software as part of any modified Software created and distributed by you. Without prejudice to the generality of the foregoing, you must ensure all modified Software carries a prominent notice stating that you have modified the Software.
1.7. Without prejudice to clause 3.2 of this Licence, you grant to us a non-exclusive, irrevocable right to use, reproduce, modify, create derivative works from, distribute, transmit, broadcast or otherwise communicate your modified Software in connection with the promotion and operation of a Game.
1.8. If you distribute or otherwise make available your modifications or derivate works of the source code or/and art assets (hereinafter " New Work") , you automatically grant to UNDERTOW GAMES the irrevocable, perpetual, royalty free, sublicensable right and license under all applicable copyrights and intellectual property rights laws to use, reproduce, modify, adapt, perform, display, distribute and otherwise exploit and/or dispose of the New Work (or any part of the New Work) in any way UNDERTOW GAMES, or its respective designee(s), sees fit. You also waive and agree never to assert against UNDERTOW GAMES or its affiliates, distributors or licensors any moral rights or similar rights, however designated, that you may have in or to any of the New Work.
2.1. Except as otherwise permitted in this agreement, you may not use the Software or Documents or any modified Software for any purpose other than in relation to the operation of a Game.
2.2. Except as expressly set out in this Licence or as permitted by any local law, you undertake:
2.2.1. not to copy the Software or Documents except where such copying is incidental to normal use of the Software, or where it is necessary for the purpose of back-up or operational security;
2.2.2. not to rent, lease, sub-license, loan, translate, merge, adapt, vary or modify the Software or Documents;
2.2.3. not to make alterations to, or modifications of, the whole or any part of the Software, nor permit the Software or any part of it to be combined with, or become incorporated in, any other programs;
2.2.4. not to disassemble, decompile, reverse-engineer or create derivative works based on the whole or any part of the Software nor attempt to do any such thing except to the extent that (by virtue of section 296A of the Copyright, Designs and Patents Act 1988) such actions cannot be prohibited because they are essential for the purpose of achieving inter-operability of the Software with another software program, and provided that the information obtained by you during such activities: is used only for the purpose of achieving inter-operability of the Software with another software programs; and is not disclosed or communicated without our prior written consent to any third party; and is not used to create any software which is substantially similar to the Software;
2.2.5. to keep all copies of the Software secure and to maintain accurate and up-to-date records of the number and locations of all copies of the Software;
2.2.6. to include our copyright notice on all entire and partial copies and modifications you make of the Software on any medium;
3.1. You acknowledge that all intellectual property rights in the Software and the Documents anywhere in the world belong to us, that rights in the Software are licensed (not sold) to you, and that you have no rights in, or to, the Software or the Documents other than the right to use them in accordance with the terms of this Licence.
3.2. You acknowledge that all intellectual property rights in any modified Software created by you belong to us and we shall have the exclusive right to deal with and restrict the dealing with any modified Software at our sole discretion.
3.3. You must retain, in the source form of any modified Software that you distribute, all copyright, patent, and trade mark notices from the source form of the original Software.
3.4. This License does not grant permission to use the trade names, trademarks, service marks, or product names of the Licensor, except as required for reasonable and customary use in describing the origin of the original software.
3.5. You acknowledge that in agreeing to the terms of this Licence, you relinquish your legal rights, including your right to bring legal proceedings, in respect of any part of the Software in which you claim to own intellectual property rights.
4.1. You acknowledge that the Software 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 Software meet your requirements.
4.2. If you are a consumer, we only supply the Software and Documents for domestic and private use. You agree not to use the Software and Documents for any commercial, business or re-sale purposes, and we have no liability to you for any loss of profit, loss of business, business interruption, or loss of business opportunity.
4.3. If you are a business customer (such as an educational establishment), we only supply the Software and the Documents for internal use by your business, and you agree not to use the Software or Documents for any re-sale purposes.
4.4. You acknowledge that the Software may not be free of bugs or errors, and agree that the existence of minor errors shall not constitute a breach of this Licence.
4.5. We do not offer any warranty or guarantee in respect of the operation of your Steam Account and we shall have no liability to you resulting from the operation of your Steam account and the effect that has on the Software
4.6. We shall have no liability under or in connection with this Licence whether in contract, tort (including negligence), breach of statutory duty or otherwise This does not apply to the types of loss set out in condition 4.7.
4.7. Nothing in this Licence shall limit or exclude our liability for:
4.7.1. death or personal injury resulting from our negligence;
4.7.2. fraud or fraudulent misrepresentation; or
4.7.3. any other liability that cannot be excluded or limited by Finnish law.
4.8. This Licence sets out the full extent of our obligations and liabilities in respect of the supply of the Software and Documents. Except as expressly stated in this Licence, there are no conditions, warranties, representations or other terms, express or implied, that are binding on us. Any condition, warranty, representation or other term concerning the supply of the Software and Documents which might otherwise be implied into, or incorporated in, this Licence whether by statute, common law or otherwise, is excluded to the fullest extent permitted by law.
5.1. We may terminate this Licence immediately by written notice to you if you commit a material or persistent breach of this Licence which you fail to remedy (if remediable) within 14 days after the service of written notice requiring you to do so.
5.2. Upon termination for any reason:
5.2.1. all rights granted to you under this Licence shall cease;
5.2.2. you must immediately cease all activities authorised by this Licence;
5.2.3. you must immediately delete or remove the Software from all computer equipment in your possession, and immediately destroy or return to us (at our option) all copies of the Software and Documents then in your possession, custody or control and, in the case of destruction, certify to us that you have done so.
6.1. If you wish to contact us in writing, or if any condition in this Licence requires you to give us notice in writing, you can send this to us by e-mail to or by pre-paid post to Undertow Games, Pormestarinkatu 4 H 70, 20750 Turku, Finland. We will confirm receipt of this by contacting you in writing, normally by e-mail.
6.2. If we have to contact you or give you notice in writing, we will do so by e-mail or by pre-paid post to the address you provide to us in your order for the Software.
7.1. We will not be liable or responsible for any failure to perform, or delay in performance of, any of our obligations under this Licence that is caused by an Event Outside Our Control. An Event Outside Our Control is defined below in condition 7.2.
7.2. An Event Outside Our Control means any act or event beyond our reasonable control, including without limitation failure of public or private telecommunications networks.
7.3. If an Event Outside Our Control takes place that affects the performance of our obligations under this Licence:
7.3.1. our obligations under this Licence will be suspended and the time for performance of our obligations will be extended for the duration of the Event Outside Our Control; and
7.3.2. we will use our reasonable endeavours to find a solution by which our obligations under this Licence may be performed despite the Event Outside Our Control.
8.1. We may transfer our rights and obligations under this Licence to another organisation, but this will not affect your rights or our obligations under this Licence.
8.2. We may amend this Licence at any time at our sole discretion. You can view the Licence at any time at If you do not agree to the amendments or any of the terms of this Licence, your only remedy shall be to terminate the Licence. We shall not have any obligation to refund the Licence Fee.
8.3. You may only transfer your rights or your obligations under this Licence to another person if we agree in writing.
8.4. If we fail to insist that you perform any of your obligations under this Licence, 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.
8.5. Each of the conditions of this Licence 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.
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