Gregic Additions is a GregTech Community Edition addon adding a lot of content to it and making sure you'll be playing it for a lot longer. It makes GTCE almost identical to GT5U, without some annoying parts of it, as well as adding some GT6 features.
-GT5U:
-Machines: Circuit Assembling Machine, Mass Fabricator, Replicator, Naquadah Reactors, tier 5-8 versions of existing machines
-Multiblocks: Fusion Reactor and Assembly Line (the Scanner has not been added as many people such as myself found it being a pointless time gate)
-Superconductors for every tier
-GT6:
-Machines: Cluster Mill
-Multiblocks: Coke Oven
-Processing: Plate bending, Positive and Neutral Matter instead of UU-Matter, Plates are crafted from Double Ingots, Wrenches are made with Plates instead of Ingots
-Support for Forestry's Electron Tubes
-GTNH:
-Processing: Forming Clay into Bricks
-Misc:
-Processing: The Packager and Unpackager can craft and uncraft in a 3x3, Forming Clay into Bricks (inspired by GTNH)
-Forestry support (adds recipes for Electrodes)
-Tinkers' support (changes the Grout recipe and make Molds and Extruder Shapes require casting)
