Aside from the assets detailed below that have their own licenses, this project is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit of the public at large and to the detriment of our heirs and successors. We intend this dedication to be an overt act of relinquishment in perpetuity of all present and future rights to this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
For more information, please refer to http://unlicense.org
Epic sample content (e.g., Animation Starter Pack) is licensed under the terms of the Unreal Engine End User License Agreement version 13 section 1.e:
Distribution and sublicensing of Examples - You may Distribute or sublicense Examples (including as modified by you under the License) in Source Code or object code format to any third party. However, the rights in this Section 1(e) do not expand or modify your limited Distribution and sublicensing rights for Engine Code and Content (including as modified by you under the License) that are not Examples.
The VolumetricClouds folder contains assets downloaded from Michael Kinsey's Volumetric Clouds in UE4 Tutorial Content which are licensed under ArtStation's Marketplace EULA.
The Audio folder contains an IR (impulse response) asset created made with the Tobiasz 'unfa' Karoń's recording IR-02 (gunshot in a chapel MIXED) licensed under Creative Commons CCO 1.0 Universal (CC0 1.0) Public Domain Dedication.
AudioUE5 folder contains impulse response audio files from EchoThief Impulse Response Library and is licensed under EchoTheif's license (which can be found in a PDF along with the EchoThief audio files) which states:
You are welcome to use the EchoThief Impulse Response Library to create derivative work (such as convolving it with other sounds to create reverberation). If you would like to use it in any other way, let's talk. You can reach me at chris@superhoax.com .
The Fully Automatic Pistol (UZI) - Pistol Firing Burst (1) sound is from FilmmakersManual and is licenses under Creative Commons CCO 1.0 Universal (CC) 1.0) Public Domain Dedication.