One of the biggest mods available. This mod single handedly extends your gameplay experience for days
Authors: GregoriusT
Website: http://forum.industrial-craft.net/index.php?page=Thread&threadID=7156
Donate: PayPal
Wiki[]
http://ftb.gamepedia.com/GregTech
Survival Guide: https://docs.google.com/document/d/1_suVZdSI91JimQTsgR3ejRt1HbxOM87Sh1OO2Fou6zM/edit