User blog comment:ZeroEdgeir/One Crazy Castle/@comment-4581788-20120130164111

I still got an Underground Jungle, Hallowed, Corruption biomes to make (actually clearing the jungle area as we speak). And a surface Corruption and Hallowed (along with their respective deserts).

The artificial ocean is impossible I believe sadly. I made 2, each about 200 blocks wide, over 6000 feet from spawn, 2-3 sand block base, filled with water, got nothing after a few weeks of in-game time.