I don't think I used sounds directly from other particular games except the axe and vulcan, which are hommages from Swamp. But I don't know since it's very difficult to track down the origin (an unprocessed sound in a library, leaked from somewhere and I downloaded from findsound or as a compiled soundpack on this forum, ETC).
I've emailed Kai about the use of vulcan and axe sounds. I couldn't receive reply from him, so now they're included and ready to be replaced, if required.
Oh, the footsteps on ladders are from operation blacksquare; Ghorthalon kindly accepted using them.
I don't speak as good as I write, and I don't listen as good as I speak.