Adds prismite, a mysterious and powerful rainbow-colored ore, and various associated products.
Mods introducing new content into the game.
New Ores and resources as well as machines.
Things related to oil and other fluids.
Furnaces, assembling machines, production chains.
More than just chests.
Not sure how much is it a work in progress / intended / bug, but the Mythril engine unit recipe creates regular Engine Units.
This is intended. It's just an alternate way to produce engine units if you want to focus on mythril rather than steel.