So I'm making this desert-themed castle (images attached below) and I added a dungeon to the side. I'm not quite sure what to make in it. Lava parkour, drawbridge (redstone), Exhibition et cetera. I'm making this in survival so I don't have access to command blocks and that stuff. Any ideas?
1. Mob grinder, except mobs aren't dropped into convenient killing ground, but into large field flooded in water one block deep, so that one has to fight a way through.
2. Maze in powder snow, with floor entirely from powder snow that leads to a stalagmite impaling field if broken, shifted or stepped on without leather boots.
3. 1-block thick lava fall that ends in water, but only over a section. Sections are marked with various blocks surrounding them, and the right block is an answer to a preferably tricky question on a far-away sign (for example, "which metal reacts with hydrochloric acid" and lining one section with iron, another with copper and last with gold, the answer is iron, so copper and gold have obsidian floor and iron allows to fall through and into water).
4. Rapid cobblestone generator door, but slower so that a highly efficient pickaxe can get through
Gaming in dwarf style: building from stone instead of wood, with emphasis on practicality, underground rather than on surface, coupled with methodical approach to combat and exploiting mass production options whenever convenient.