is there any use for steam traps other than delaying orcs?
It deals a very little amount of damage, but its prime use is to have another trap either on the wall nearby or the ceiling to combo the orc.
| = wall _ = ceiling S= steam W= wall trap C= ceiling trap
The ground level wall trap will do its job, the steam trap will propel orcs upward so they get damaged by the other traps higher up, and the ceiling trap can nail the coffin.
There isn't many maps which allow for this, and none that need this, it really is just a style of play and another way for combos.
Well, why not have more numbers in OMD2?
No really, why not?