Bloodstone: an Epic Dwarven Tale.
http://en.wikipedia.org/wiki/Bloodstone:_An_Epic_Dwarven_TaleIt's an old game(1993; dosbox is a must), top-down, with turn based combat, and not too terrible graphics, for it's time that is. It's centered around a party of dwarves(you can get some humans/lizards in as well, but hey, this is bay12) on a quest to unite some tribes against the dreaded goblin menace that destroyed their fortress. You're given this quest at the beginning, then left in a sizeable world to find out how you're supposed to do it on your own.
I particularly liked the stat system, which practically got rid of leveling up and distributing points, and focused on improving skills through usage. Your party doesn't ever turn into unstoppable tanks, and while having highly skilled characters helps, it's the hard-to-find artifact-quality items and spells that make the difference between winning and losing a combat.
The game is very old-school in it's treatment of following quests - you will need to make lots of notes to be able to keep track of what you're supposed to do where, and what rumors you've heard about what. It doesn't tell you much, and you're left with figuring things out yourself.
The world is sufficiently large to warrant that you won't be able to keep track of it all without a sizeable notebook.
The above is actually a hassle, and might put you off, but I suppose the game is at least worth a try.