Reinforced Wall is a type of impassable terrain that is created when normal rock walls are fortified by Imps, and it takes significantly longer to dig through than rock. The wall must be adjacent to Claimed Path in order to be able to be fortified. Most kinds of rooms are made more efficient and cost-effective by having reinforced walls as a border.
There is a bug that enables enemies (or at least hero Tunnellers) to breach fortified walls; if an Earth tile becomes fortified while being dug, the fortified wall will continue to be dug and eventually broken through, as if the fortified wall belonged to the other player.
Dungeon Keeper 2Edit
Reinforced walls can be dug through by enemy forces, but it takes a much longer time than digging through one's own walls---especially if the wall's owner has an Imp working to re-fortify the wall in the meantime! It is often more expedient to claim all of the path/rooms adjacent to the wall; when the wall's owner has no more claimed path next to the wall, it will automatically un-fortify and turn back into normal rock. Another option is to use the Tremor spell to un-fortify some of the enemy's walls.
Rooms such as the Library, Training Room, Workshop, Torture Chamber, and Casino usually gain capacity to accommodate more creatures when bordered by a straight section of at least three reinforced walls.
| ||Claimed Path / Dirt Path / Gem Seam / Gold Seam / Lava / Reinforced Wall / Earth / Impenetrable Rock / Water|
| ||Claimed Path / Dirt Path / Gem Seam / Gold Seam / Lava / Mana Vault / Reinforced Wall / Rock / Solid Rock / Water|