https://mipmip.org/advfamily/advfamily.html
Some important versions: WOOD0350 (added most of the feature we know about; allegedly there was an early 250-point version in the wild but it's poorly documented), GILL0350 (C port, made it into bsdgames among others), WOOD0430 (the final version by him, what open-adventure is based on). But several other lineages are also well known (you can see .
The link submitted is a bit of a mess. src/ contains multiple versions of CROW0000 (which had been thought lost prior to 2005). But the various images are for other versions, and I haven't checked the binaries.
If you're interested in hacking your own version of adventure, the best by technical measures (reproducibility, sane file format, etc.) is:
https://gitlab.com/esr/open-adventure
(But the major change of file format does mean it becomes difficult to apply changes from other members of the Adventure family. This is also a problem for some others though!)
And the 2023 graphical remake (from Ken and Roberta Williams [King's Quest, etc.] no less):
Also there are many versions/implementations:
The Puny Inform version will run on every computer since the 70's with a ZMachine interpreter. Even the ZX, C64 with OZmoo and so on.
GOTO(1100,1004,1013,1020,1004,1004)(IKIND+1)
If the integer value is 1 (not zero), control flow transfers to label_1, if the value is 2, it transfers to the second label, etc.
Interesting! It's like a simplified switch statement.
It's a very faithful translation, with the jokes being perfectly adapted. If you are a native Spanish speaker, get it from a IF archive mirror under games/zcode/spanish.
Overall, Advent and the ZMachine have been ported to far more platforms than Doom. And, contrary what to Romero/Carmack fanboys say with the predictor, The ZMachine actually ran under a pen like device, with handwritting detection et all.
If we count up the versions for Advent in any language (even Forth and that Lambda Calculus interpreter from IOCC) and the ZMachine itself, Adventure wins second as the most ported game ever except for Tetris or Pong, because Tetris it's so simple that it can be run under a 4bit CPU and a 10x20 display.
But, potentially, giving a working ASCII display with 16x64, or with enough pixels, Sokoban could be the most ported game ever if people made ports for it. Why? You can reimplement a Sokoban game analogically with just a graph paper, pen and some cardboard to create the player and the boxes as squares. Then you could just draw down the levels with a marker.