Siege of Avalon by digital tome, is an obscure baldur's gate knockoff that I found to be a very entertaining game. gameplay is kinda meh. but the setting I found to be downright inspired and something that isn't really done enough. The game is a the fortress of Avalon is under siege and you're helping to defend it. also it may also give you that sort of "diablo feel" that u hope to find from other games like clans (though this one is leagues better then that one)
it's recently been added to gog and steam. which got rid of a bunch of bugs, including one that made u invincible if you pushed a certain key.
Also, I would love to see what you could dig up about the now defunct publishers Digital tome because as far as I know this is the only game they made
