Orenium is a remake of the original Orenium Legacy (Orenium Classic/Original) but its still unstable because old code old bugs ig. It adds a lot of things, reforcing every single thing from the old mod, upgrading it to the next level.
Some mod features:
Orenium: The Green ore, the classic, the rarest and the stronger Topton - The blue ore, the medium tier and the prettier Eastone - The red ore, the weakest of the ores, but needed to get the ores above. All these ores have one Pickaxe, Axe, Shovel, Sword and Hoe...
Good luck!