Third party guidelines

We are making the game and most of us are not lawyers. Yet we need to ensure it can be used freely and non-commercial. Using third party works (assets or code) is possible in some cases, depending on the license. Even if the source is free to use, sometimes there are restrictions (like attribution) that need to be followed. It is therefore important you provide all the information. If you wish to use any third-party works you have to ensure the following

1. Do not guess. If you're not sure it can be used, raise the issue beforehand. If you start using it without verifying it's ok then we may not be able to use your contribution.
2. Find the license of the work you wish to use, see if there are any restrictions.
3. Clearly mention the source of any third parties in your pull request and reference the license.
4. Try not to mix your own work and the third-party work if possible. For example, if you use an external library, it will be easier to update it at a later time when a new version with fixes comes out.
5. If you need any assistance to figure things out, contact the development community here and we'll do our best to help out.