This is me (guess what) playing Ultima Underworld with Dosbox 0.70. This game (1992) came out before Wolfenstein 3D, it has physics, you can jump, fall down (looking up and down too, but didnt find the buttons, lol), swim (i wanted to show that, but it would have been a waste of time), a eat/sleep system and everything else im trying to show here. I had to present the game in under 10 minutes so its a little "run through". I myself played this game to the 6th or 7th dungeon, but some bug appeared and i lost all my inventory, which really pissed me off. If you want to see the Intro, just search for it on Youtube. Im going to upload more old dos game videos.
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