Two things I noticed
Status: Pre-Alpha
Brought to you by:
jesjones
First, the Elyvilon description page implies that healing things should cost piety, but the healing ability for other creatures has been changed, so that piety is not used. This should be changed.
Second, the pathfinding for neutral creatures looks wrong.
You got the wrong project, I think. Try crawl-ref.sourceforge.net.