If you haven't, check out Wizardry: Tales of the Forsaken Land for PS2. It's a very good dungeon crawl with a decent story and a good combat system. Unfortunately it's hard to find, and it can play like ass due to being a CD based game. Of course if you can read Japanese, you can buy the sequel instead which fixes that problem, it's called Busin 0: Wizardry Neo Alternative or something close to that.
King's Field TAC for PS2 also is pretty fun. It's kind of slow and painful right at the start (you'll probably die 5 seconds in like everyone else), but once you get over that it becomes a very fun game. Shadow Tower Abyss is from the same company and it's a little less clunky but also way shorter and easier... but is also a very fun game for at least a playthrough or two. Japanese only but you can easily play it without reading, as there's almost no in game dialog/story.
Falcom has a series for PC called Dinosaur (and Dinosaur Resurrection, the remake). I've never played it myself, but it seems to be very much a Wizardry type game and is supposedly fairly good.
For GBA there is a game called Mazes of Fate which is essentially a new Lands of Lore game. It's pretty good, although a bit clunky.
And for DS obviously there is Etrian Odyssey 1 & 2 which you should already know about. Decently fun Wizardry type game, heavy on the grind and light on the story though. Lots of exploring since the dungeon has 30 floors.
There's also the Shin Megami Tensei series on SNES, which is all first person and now has translation patches for them.