So joni909 came up with the idea of a ghost town and I added some ideas to it. I know Red is looking for ideas on how to add some new places to explore which have high risk but also offer high reward. This is basically the idea behind the dungeons. Anyways, I figured this one could likely be implemented shortly given what's already in the game right now.
A ghost town. This can be a dungeon type or maybe biome type as well. Actually, maybe a new biome is needed for this first. The biome would feature a burnt forest with lots of dead trees and the ground would seem black and covered in ash. The water holes would look mirky and likely not be suitable for drinking (a new water variation needed obviously). I know there's been talk of eventually a volcanic type of biome. Perhaps this could be the start... Maybe this biome is burned as the result of dormant volcanic or earthquake activity and the village in it sadly would have had to evacuated on short notice as they did not know about this. The biome should have a larger spawn rate of abandoned shacks that are burnt in apearance. Lots of charcoal (new item which can be found in burnt forests or collected from fireplaces in the future or the forge after smelting) can be mined from the ground. I know that eventually lava will be a liquid type handled much like water but with different properties. Perhaps an ocasional lava pool can be added. Maybe this was a mining town which hit a lava tube (lava tubes) which spelt doom for this village.
The burnt forest might have an occasional living tree and other vegetation type but overall any life should be rare. Check out images of "controlled burns" to get some ideas of what this looks like. The fire department does controlled burns in forest preservations by me which help add nutrition to the soil and reduce risk of uncontrolled burns. But they basically look dead and alive at the same time. Very bizarre and creepy. There should also be a high spawn rate of small predators (mostly the new ones such as the rat, snake, and spider). Cobwebs might also be seen inside of shacks as well as the spiders. The chests in these shacks should also offer greater reward in their inventories. Perhaps more gold ore if it was a mining town. The miners dug too deep and too greedily! ;-p
Also, some additional objects might be suitable a well. objects for a towncenter should also be generated such as a stone water fountain or perhaps a water well (spawning on top of a mirky watering hole), and... a gallow with possibly a noose still attached. The noose could be collected for rope (something we do need at some point).
Also, entrance to the biome should always trigger heavy fog..
I'm basically inspired by the burnt forest from 7D2D. Ocourse, the RW variant would be devoid of burning zombies
http://7daystodie.gamepedia.com/Burnt_Forest