Colossal Cave Adventure


Colossal Cave Adventure was the adventure game that gave the genre its name. It was also known as Adventure or ADVENT due to the 6 character limit of computers at the time. It was a complete text adventure, with no graphics, since the PDP-1 computer it was originally written for had no graphic output.

Gameplay


Colossal Cave Advenrure had the elements that would become a staple of the adventure genre, such as  puzzles and inventory. 

The goal of Colossal Cave Adventure is to search for treasure while navigating the maze-like caverns and avoiding or fighting creatures within.

Unlike most of the earlier text games, it had an inventory and puzzles. There is a point system that awarded a number of points out of a possible total, based on whether you accomplished certain tasks in the game.

It also included bats would transport the player to another room, which originally appeared in Hunt the Wumpus.

Development


Colossal Cave Adventure was developed between 1975 and 1976 in FORTRAN IV by Will Crowther.

Also in 1976, Don Woods found it and expanded it with Will Crowther's permission, completing his version in 1977. 

There were text-based games were released before it, such as Hunt the Wumpus, which was created in 1973.  However, Colossal Cave Adventure is the adventure game that popularized the genre, with gameplay including an inventory and puzzles, which would become a staple in most adventure games in the West.

The cave in Colossal Cave Adventure is based on Bedquilt Cave, a cave within the Mammoth Cave system in Kentucky, that connects to Colossal Cave. In 1972, Will Crowther's wife Patricia was part of the team that found the link that connected Flint Ridge caves to the Mammoth Cave. The Bedquilt cave was Will's favorite part of the Mammoth cave system, so he decided to make a game based around it from a map he had made, in the hopes that it would be a game that his daughters would enjoy. As he was a fan of Dungeons and Dragons, he decided to combine elements of fantasy role-playing into the game as well.  creatures.

Release


The original version of Colossal Cave Adventure, by Will Crowther, was shared over the ARPANET, the precursor to the internet, in 1976. 

Later that year, Matthew Russotto ported it to FORTRAN-77.

The updated version of Colossal Cave Adventure by Don Woods was shared over the ARPANET in 1977.

It was ported to C for UNIX by Jim Gillogly.

The 350 point versions of the game for PDP-1 and UNIX were released for free, and source code for a version for Commodore 64 was included in the book Exploring Adventures on the Commodore 64 by Peter Gerrard in 1983. In addition, it has also been ported to many different scripting languages, including ADRIFT, Glulx, GINAS, Hugo, TADS, and Z-code.

Some ports to other platforms have also been released commercially. A 370 point version called The Original Adventure, developed by Jim Gillogly and Walter Bilofsky, was released commercially by The Software Toolworks HDOS and CP/M in February 1982. This version was then released for DOS in February 1984.


Reception


The Don Woods version became quite popular, spreading over the ARPANET. 

Legacy


Jim Gillogy's UNIX port inspired many others to create their own games in a similar style, such as On-Line Games, Infocom, and Adventure International.

The point system used by Colossal Cave Adventure would be used in the games by the companies that were formed in which the founders were inspired by the game, such as Adventure International, Infocom, and Sierra On-Line. Sierra, in particular, continued the point system well into the graphical point-and-click era of adventure gaming.

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