Bay 12 Games Forum

The room is three z-levels high, 3 wide and 5 long.  The middle level is where the fun happens; it's floor is made of magma-proof floor gates.  There is a side tap from my magma pump stack down a short channel at the top of the third z-level.

There are four levers.  One inside the room, three outside the room.  The room has entrances on either end on the mid level, and one on the lowest level, as well as one on the highest level.

Urist McDoomed goes into the room.  Urist McDoomed pulls lever A, sealing himself inside.

Urist McOblivious comes along and pulls lever B.  Lever B opens the floodgate on the upper level, allowing magma to pour into the room.  The room begins to fill with fun.

Urist McDoomed becomes Urist McAshes. 

Urist McOblivious comes along and pulls lever B, lever B shuts off the torrent of magma.  Then he pulls lever C.  Lever C opens a floodgate on the lowest level which drains the fun into a sump.  You can recover this magma for obsidian fun, or other uses, if you wish.  I just let it sit at the bottom of a sump that slowly fills.

When the room is drained to an acceptable level, Urist McOblivious comes along agian and pulls lever D.  Lever D opens the other entrance into the middle level of the fun room.  Urist McOblivious then walks in and pulls lever A, opening the main entrance again.  He then walks back and pulls lever D again, closing the second exit to the room.

And this is how my nobles have fun.

Yes, I could use something much simpler, like a basic pitfall trap into fun, but that wouldn't be nearly as fun for me.

Hidden Fun Stuff.  When you dig deep enough into an adamant vein, you find a hollow spot (the "stick").  This spawns a ton (and by ton I mean pages and pages on the unit list(u)) of demons, referred to here as "clowns" frequently.