AE2: Back to Life is a modified version of Applied Energistics 2 by AlgorithmX2 and the AE2 contributors.
Code: GNU Lesser General Public License v3.0 or later (LGPL-3.0-or-later), together with the GNU GPL v3.0 it builds on.
API (appeng.api): MIT License.
Textures and models: Creative Commons Attribution-NonCommercial-ShareAlike 3.0 (CC BY-NC-SA 3.0), (c) Ridanisaurus Rid and AlgorithmX2 et al. Non-commercial use only.
Text and translations: CC0.
Bundled DataFixerUpper: MIT, (c) Microsoft. Guide click sound: CC BY 4.0, EminYILDIRIM. appeng/thirdparty/codechicken: LGPL-2.1-or-later, (c) covers1624.
Full license texts: https://github.com/Xponer2/ae2-back-to-life (LICENSE and the licenses folder)