The issueTunnelers units (ie. creatures that can dig, mainly in order to invade your fortress) has been one of the most debated suggestion ever : Again recently, there's been another argument over that in
this topic.
Each time, there's people for, and people against, and in the end there's never a clear consensus on this topic.
I think that with a poll, we'll know if players want or do not want this feature to be implemented.
Short lists of the pros (+) & cons (-) of the tunnelers :+ Will make siege harder, because right now, a simple locked door can break most sieges ; add a moat and all siegers will be stymied.
- Maybe a little to hard, because there will be no way to stop intruder to dig to your fortress.
+ More realistic : Many animals can mine (eg. ants, worms...) and invented creatures like antmen etc. should be able to do it too. And dwarves aren't the only creatures who mine, humans do it aswell.
- But no animal dig dwarf-sized tunnel, and we can imagine that dwarven tunnels are very complex structures, inaccessibles to the engineering of other races.
+ Could be an interesting underground feature : An adventurer will be able to explore tunnels and find an underground nest.
- Cave do the same.
+ Give a hint about the location of some features and minerals.
- And spoil the fun by the same way.
- Could worsen the pathfinding situation.
+ Or simplify it, because there won't be total blockeade anymore.
- The monsters will be able to destroy the fortress design.. and break into a magma or water pool, spelling doom on the fortress.
+ The tunnelers AI could be made to avoid warm / damp wall, and walls could be reinforced to be inaccessibles to the tunellers (in the same fashion that walls are smoothed or engraved).
... there's more pros and more cons, but theses are the ones that I saw the most.
It's time to clear that issue. So cast your votes : For or Against tunnelers ?