Paleagora is an Old World.
Explore a medieval pack with dangerous mobs, magic, lots of extra enchantments, and a balanced mixture of tech with server friendly automation. Progression is meant to be a little slower, with true creative flight not being available until very late game.
Highlight mods:
Ad Astra
End Remastered
Mystical Agriculture
When Dungeons Arise
Biomes o Plenty
Extreme Reactors
Better Combat
Refined Storage