Based on TrueCraft's texturepack which in turn is based on Pixeludi Pack by Wojtek Mroczek.
All textures are CC-BY-SA-4.0.
The footstep and mining/placement sounds effects were sourced from Minetest under CC-BY-SA-4.0.
default_hurt.wav is the same sound effect older version of Minecraft used, which is CC-BY-SA-4.0 from http://freesound.org/people/thecheeseman/sounds/44429/.