I'm looking for games similar to Doom 2 RPG and Wolfenstein RPG. Those two kept me playing for hours. - Not looking for 1st person shooters - Not looking for rogue-like games - Not looking for traditional style RPG's like J/KRPG or western RPGs (ravensword, aralon, etc), already have lots of those Basically a turn-based dungeon-crawler with RPG elements sort of thing, sort of like the Quest or Undercroft series, but preferably simpler than Quest as that thing was too hardcore for my liking, almost like reading a textbook.
QuestLord Silversword Tumulus of Fen Dungeons & Such The Bard's Tale (the action RPG has bonus originals in the style you request) Wizardry Labyrinth of Lost Souls Sorcerer 1 - 4 [free] Eternal Throne Oubliette RPG Descend RPG The Labyrinth Phase 1 Akalabeth - World of Doom! Alternate Reality The Dungeon Alternate Reality The City I can't comment on the quality of all these but Questlord, Silversword, and Tumulus of Fen are winners.
I can't find Sorcerer #3 in the US AppStore. However there is a fifth one. @OP - if you have an old phone laying around (or someone you know), like a non-android Nokia or Sony ericsson, get Orcs & Elves and Orcs and elves 2. It's also developed by ID and I think it's exactly what you want to play right now.
I second Tumulus of Fen. Great tension, but shitty interface. If you can put up with the UI, it is a heck of a ride.
I'd vouch for Silversword and Questlord. You can instantly tell that both are labors of love fueled by nostalgia. They hit all the right notes.