It doesnt seam to work with Space exploration walls, or any other mod that changes the base game walls to something other, maybe make them a separete recepie so they are always available?

Hello PlashTrap.
This mod gives indestructible properties only to stone walls (vanilla walls). If you add this mod to your save file while playing the game, the indestructible property will not be applied to the walls installed before the mod was added, but only to the newly installed walls.
I tried using this mode at the same time as the space exploration mode and confirmed that the stone wall was indestructible. However, I also confirmed that the indestructible property does not apply to concrete walls and steel walls.

It seems to be working, but as per your request I added a separate recipe, item, and entity for the maze walls. A related setting has been added to the mod's startup options, so in version 0.0.2 you can check it out.

Ah alright now i understand and thanks for you effort to even make this a separet recipe! <3