Arch Linux User Repository

If you look at the startup screen of both games, you'll really see the differences. This version: Welcome to Colossal Cave Adventure! Original development by Willie Crowther. Major features added by Don Woods. Conversion to BDS C by J. R. Jaeger. Unix standardization by Jerry D. Pohl. Port to QNX 4 and bug fixes by James Lummel. Port to Linux in 2017 by Giganitris @Github (Adventure-port). Would you like instructions? >y Somewhere nearby is Colossal Cave, where others have found fortunes in treasure and gold, though it is rumored that some who enter are never seen again. Magic is said to work in the cave. I will be your eyes and hands. Direct me with commands of 1 or 2 words. I should warn you that I look at only the first five letters of each word, so you'll have to enter "Northeast" as "ne" to distinguish it from "North". (Should you get stuck, type "help" for some general hints). You are inside a building, a well house for a large spring. There are some keys on the ground here. There is a shiny brass lamp nearby. There is tasty food here. There is a bottle of water here. > open-adventure: Welcome to Adventure!! Would you like instructions? > y Somewhere nearby is Colossal Cave, where others have found fortunes in treasure and gold, though it is rumored that some who enter are never seen again. Magic is said to work in the cave. I will be your eyes and hands. Direct me with commands of 1 or 2 words. I should warn you that I look at only the first five letters of each word, so you'll have to enter "northeast" as "ne" to distinguish it from "north". You can type "help" for some general hints. For information on how to end your adventure, scoring, etc., type "info". - - - This program was originally developed by Willie Crowther. Most of the features of the current program were added by Don Woods. Contact Don if you have any questions, comments, etc. You are standing at the end of a road before a small brick building. Around you is a forest. A small stream flows out of the building and down a gully. >

It's not that exact version of it. It's technically the same game, but this version has been ported and rewritten in different languages. This was written in a different version of C and then was rewritten back, where I believe the ESR version was likely written in FORTRAN and then written in proper C. I have to say, open-adventure is likely more related to the very first version of the game. As it says in their readme, the original developers actually gave them proper permission and encouragement to continue development. I have to say, that's an amazing find. I also highly respect Eric S. Raymond, who is the owner of that repository. There's a lot of history behind this game, needless to say. If you have free time, I think Raymond's website actually has some of the history on it. If it doesn't, just Google it.

FYI: https://gitlab.com/esr/open-adventure isn't it the same game?