So with the latest patch spiders can climb walls. What can we do to secure our towns/castles/hovels against these new mobile menaces? Does adding a lip to the wall work? Or is there some block they won’t climb?
This answer has gone through many, many edits, so I decided to overhaul it. (Minecraft Forums user Thescorpi0on did a number of tests on this.)
Things that will stop spiders:
- A lip extending off of your wall
- Ladders on the top of your wall
Things that won’t stop spiders:
- Cacti (it will injure them but they can climb up them)
- Ladders going all the way up your wall (they will start climbing at the bottom all the way up)