No ore patches, expand from a small island. Also install the 'Sea Block Pack - Official' mod for a complete modpack
Large total conversion mods.
It seems that there is a dependency on bobplates(bob's metals, chemicals and intermediates) in the mod.
Lines 557 and 664 in data-updates.lua throw errors if bobplates is not enabled.
Thank you for mentioning this. I was wondering why Sea Block wasn't working even though I had all the dependency mods on.
This should be an easy fix with just adding it as a dependency for Sea Block, so I hope Trainwreck will get around to adding that.
