Yes there are mobile versions. They used a virtual machine method, like Java, where the games were written for a hypothetical Z-machine, so they only had to write one interpreter for every platform. Frotz is a popular modern zcode player that's also on Android and iPhone. Someone even made a hardware version of a Z-machine using an FPGA.

I'll wait for somebody to implement it in Dwarf Fortress.

Zork is a prime example of how something can be historically important, highly influential, and a classic example of a genre, while still being objectively badly made by modern standards.

It's a bit like a Model T: the controls on a Model T are unintuitive, difficult to use, and frankly stupid. This isn't a matter the limited technology the time; they could have easily done things differently. It's a crucially important important piece of automotive history, but there are a lot of ways that it's just *bad* that can only be excused by the fact that it's an early example and they just didn't know any better.

Edit: I feel like I should clarify that this isn't a criticism of text adventures themselves, but of Zork as the archetypical text adventure. Zork is historically important, but there are other, later games in the genre that are much better.

The HGTTG game actually got me into the book

Edit: same with robots of dawn.

I guess this is a good time for an Infocom anecdote that's SE appropriate. I had a Commodore 64 and played HGTTG, Station Fall, and later The Lurking Horror on it. There were ads for a new Infocom game called Trinity that intrigued me that featured a picture of a mushroom with a tiny wooden door in the stalk and a story about a nuclear bomb.

I saved my money, went to the store and bought it, but as I was leaving the store I noticed it was only for the C=128. There were very few games that only worked on the 128, since it had full 64 compatibility and was not that popular. But every 64 game at the time listed "64/128" on the platform sticker, so I didn't really notice that Trinity didn't have 64 listed, I just saw "Commodore" and a "128" at the end and assumed it was the same sticker as all the others.

So I went back in the store and explained this to the seller and asked if I could get a refund. She said no, but I could exchange it for another Infocom game. She suggested Leather Goddesses of Phobos, an "adult" game that I knew nothing about. I was like 12-13 so in hindsight I think she was having a laugh at my expense, but I took it.

And that is how I bought a game where you solve a puzzle by fucking a gorilla.

(<VERB? FUCK KISS TOUCH>
        <COND (<NOT ,GONE-APE>
               <TELL "What a repulsive, bestial idea!" CR>)
              (T
               <COND (<EQUAL? ,NAUGHTY-LEVEL 0>
                         <TELL
"Normally, we wouldn't allow this in TAME mode, but it's okay in this
case since you're only a gorilla. This sort of thing appears all
the time in National Geographic.">)
                 (T
                  <COND (<NOT ,GORILLA-EXAMINED>
                     <SETG GORILLA-EXAMINED T>
                     <NOT-BAD-LOOKING>
                     <TELL " ">)>
                  <TELL
"You begin nuzzling, and things quickly get hot and heavy.">
                  <COND (<EQUAL? ,NAUGHTY-LEVEL 2>
                     <TELL
" The " 'PRSO " screams, \"Eee oo oo ah!\" which translates roughly
as \"Oh, you animal!\"">)>)>
               <COND (<IN? ,MAD-SCIENTIST ,HERE>
                  <TELL " ">
                  <MINE-THEORY T>)
                 (T
                         <CRLF>)>)>)>>

And if you can't beat off to that, you're on the wrong website.

And now you are here... This all makes perfect sense.