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v0.31:Fortification
| This article is about an older version of DF. |
Fortifications are a special type of wall. They allow the passage of projectiles [in and out] and liquids, mist, steam and smoke, but not creatures, making them an important part in a fortress's defense. An archer must have a skill level of accomplished or higher to shoot through fortifications from a distance; otherwise they must stand directly next to the fortification to shoot through it. Creatures with a [FLIER] tag can of course fly over and avoid these walls. One can build floor tiles on the Z-level above, to make a roof against flyers.
Fortifications allow liquids to pass through in any direction except vertically -- they are open at the top, allowing liquids to be poured in from above, but they implicitly include a floor (even when constructed over empty space) so liquids will not fall out their bottom.
Note that goblin elite bowmen and crossbowmen have sufficient skill to ignore the distance from your fortifications; they will shoot right through every time and (likely) decimate your forces.
Beware that fully submerged (i.e. 7/7 depth) fortifications will not block the passage of creatures that swim in water (or magma) - wall grates and vertical bars work, but they are vulnerable to building destroyers. A partially-submerged fortification (even with 6/7 depth) completely blocks the passage of creatures, despite the fortification being invisible. If the water is flowing though, it can push creatures through fortifications, even if they are not fully submerged (that is at least true at 2-3/7 depth).
Curiously, a fortification carved into a tile at the very edge of the map will allow water or magma to drain through it and off of the map.
In adventurer mode you can throw items such as bows, arrows, axes, hammers, shields, body armour, severed limbs, corpses through the wall, anything but climb through them.
Building Fortifications
Fortifications can be built one of two ways. Firstly, they can be carved from constructed walls or smoothed natural walls by pressing designation and then Carve Fortifications. The second way is through the construction menu: First press b, then C followed by Fortifications. As with most buildings, this will require one unit of wood, stone, metal, or glass. Note that constructed fortifications do not have walkable floors above them, while carved fortifications do.
Carved fortifications must be carved by a dwarf with the Stone Detailing labor enabled. Constructed fortifications must be built by a dwarf with a corresponding labor to the material used.
| Rooms |
Barracks • Bedroom • Dining room • Dormitory • Jail • Meeting hall • Hospital • Office • Sculpture garden • Tomb • Zoo |
|---|---|
| Furniture |
Animal trap • Anvil • Armor stand • Bed • Bin • Box • Bucket • Cabinet • Cage • Coffin • Restraint • Seat • Statue • Table • Weapon rack |
| Access | |
| Constructions | |
| Machine & Trap parts |
Axle • Gear assembly • Millstone • Screw pump • Water wheel • Windmill • Lever • Pressure plate • Trap • Support |
| Other Buildings | |
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