Asset is governed by the Asset Store EULA; however, the following third party components are governed by the licenses indicated below:

==== DevTools ====
Copyright (c) 2013-2017 FluffyUnderware, http://www.fluffyunderware.com
All rights reserved.

==== LibTessDotNet ====
SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
Copyright 2000, Silicon Graphics, Inc. All Rights Reserved.  
Copyright 2012, Google Inc. All Rights Reserved.

==== Vector Graphics ====
com.unity.vectorgraphics copyright © 2020 Unity Technologies ApS
Licensed under the Unity Companion License for Unity-dependent projects--see [Unity Companion License](http://www.unity3d.com/legal/licenses/Unity_Companion_License).
Unless expressly provided otherwise, the Software under this license is made available strictly on an “AS IS” BASIS WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. Please review the license for details on these and other terms and conditions.

==== 3d models ====
The used asteroid 3d model is from the "Asteroids Pack" asset by Mark Dion, with modification.
https://assetstore.unity.com/packages/3d/environments/asteroids-pack-84988
License: Asset Store Terms of Service and EULA: https://unity3d.com/legal/as_terms

The used rail block 3d model is from the "Railway Sleepers" asset by ALEXANDR PRIMAKOV, with modification.
https://assetstore.unity.com/packages/3d/environments/railway-sleepers-95855
License: Asset Store Terms of Service and EULA: https://unity3d.com/legal/as_terms

The used barbed wire 3d model is from the "Barbed Wire Spool" model by Aidan Callaghan
https://sketchfab.com/3d-models/barbed-wire-spool-59cc9460a24a459eac7057443e6a4e72#download
License: Creative Commons Attribution Interational 4.0: https://creativecommons.org/licenses/by/4.0/