Tkok,Gems of Unification,Dark Invasion II and Gaias are your best bet.
Tkok game is nice, or not? I mean this game have too much options to do anything, which is why its boring and before I even do something it will take 1 hour lol, I prefer something more simple, also this game lags a little to me even if i change fog settings.
Gems of Unification, when I look at minimap now from hiveworkshop I dont see much there, I played it and it was cool, not sure if there are any dungeons though.
Dark Invasion II, I played it as well, and I cant remember any dungeons in this game.
I will try Gaia but I can remember this map being short, most of terrain was water, anyway I will give it a try, please give me more game names,
the idea of the map I want to play came from Defi4nc3`s ORPG which have dungeons and stuff(game from 2006) but its boring after a while, seriously unbalanced gameplay, but i want to play something similar but with more balanced game.