Castleminer space rock

Space Rock, which can only be found by modding.

Space Rock is a block found in CastleMiner Z that is used to build advanced mining tools and alien weapons such as the Laser Pistol. It is found exclusively near Alien "crash sites" where it is found in abundance. Along with the Space Rock, you can find Space Goo, which is also used to make advanced tools and weapons. Space Rock is very hard to destroy, requiring a Bloodstone pickaxe to break. 


  • Space Rock was originally left out of the game, but in newer updates, was added
  • Space Rock may have not been included earlier because of Biome blending issues
  • Space Rock is harder than bloodstone to break because you can only use a Bloodstone Pickaxe or any Light Sword to break it

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