I just found the tinker as well, while checking out the new secret passage logic. They seem much rarer now. They also don't appear to replace normal subdungeons anymore, which is very nice change.
That being said, the only secret passage I've found so far is the Tinker cave, which might follow different rules. Has anyone found a 'normal' secret passage yet, and did it replace or supplement the open air subdungeon?
EDIT: Answered my own question. The Tinker makes this very easy to check. Secret passages are rare bonuses that spawn in addition to normal subdungeons. They seem to happen roughly 1-in-5 times, but I didn't measure that very carefully.
This is a very welcome change. It was frustrating having such a vital exploration resource be randomly denied.
Last edited by Sidestepper
on Fri Dec 09, 2011 5:54 pm, edited 1 time in total.