Today we’ve finished implementation of caves so that you can go there and do stuff (and not just fall through terrain). We’ve also gave up on boost::serialization and are going to implement our own saving. It’ll take some time, but at least we’ll have control.
Water is filling everything right now. It can be an issue for our players as everything built under the ground will be under water if you accidentally dig in the wrong place. We’ll maybe have to adapt some Minecraft-like implementation where water flows a little bit and then disappears. Well, maybe.