Galacticraft fuel fix by Dimach
This addon disable using common fuel for rockets (only EnderIO rocket fuel allowed)
Galaxite by Insane96MCP
New ore spawning in the end on the outer islands. Tools and Armor made with this ore, the Galaxite, have special protection againist "End" sources and a special ability when you fell into the void
Game Timer by Hanse00
An ingame indicator of how long you have been playing. For people like myself who forget the passage of time when having too much fun.