Terraria – How to mine safely in the underworld without Ash falling on me

terraria

While mining in the underworld I noticed that ash block behave in a very peculiar way, like a hybrid of sand and solid blocks. They can stay up without needing support by blocks below them, but if you mine in the vicinity they sometimes fall down.

I've had a whole section of ash collapse on top of me, which is annoying, it hurts and after cleaning up the resulting cave is large enough for imps to spawn inside. I also had parts of my tunnel collapse when trying to fill emtpy space with blocks to prevent imps from spawning.

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  • How do Ash physics work? When do the blocks fall?
  • What are effective mining strategies to prevent lots of ash collapsing into my tunnel?

Best Answer

From the 1.0.5 change log

Mud and ash now have a chance to fall like sand when struck.

Playing with it currently I seem to get a mud slide about 1 in 4 mud blocks dug, as the chance is presumably calculated for all neighbouring blocks the actual chance per block is likely lower

As for mining, make a ceiling out of stone or dirt and dig under it, digging down should be easy, be careful when digging sideways to dig at your farthest reach.

for mud you can also plant jungle/mushrooms in it which seems to prevent the falling chance, this would be quite situational as normally if you are tunnelling through it you will be removing the grass/fungi too

EDIT

from the 1.0.6 changelog

Ash and Mud no longer fall due to gravity.

so ash/mud physics is now of interest only as an historic note (unless it comes back again)

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