Myst is a 1993 adventure video game developed by Cyan and published by Broderbund for Mac OS. In the game, the player travels via a special book to a mysterious island called Myst. The player interacts with objects and traverses the environment by clicking on pre-rendered imagery. Solving puzzles allows the player to travel to other worlds ("Ages"), which reveal the backstory of the game's characters and help the player make the choice of whom to aid.

Designers Rand and Robyn Miller had started in game development creating black-and-white, largely plotless works aimed at children. They wanted Myst to be a graphically impressive game with a nonlinear story and mystery elements aimed at adults. The game's design was limited by the small memory footprint of video game consoles and by the slow speed of CD-ROM drives. The game was created on Apple Macintosh computers and ran on the HyperCard software stack, though ports to other platforms subsequently required the creation of a new engine.

Myst was a critical and commercial success. Critics lauded the ability of the game to immerse players in its fictional worlds. It has been called one of the best and most influential video games ever made. Selling more than six million copies, Myst was the best-selling PC game for nearly a decade. The game helped drive adoption of the CD-ROM drive, spawned a multimedia franchise, and inspired clones, parodies, and new video game genres, as well as spin-off novels and other media. The game has been ported to multiple platforms and remade multiple times.

Gameplay

Mysts gameplay consists of a first-person journey through an interactive world. Players can interact with specific objects on some screens by clicking or dragging them. The player moves by clicking on locations shown on the screen; the scene then crossfades into another frame, and the player can explore the new area. Myst has an optional "Zip" feature to assist in rapidly crossing areas already explored; when a lightning bolt cursor appears, players can click and skip several frames to another location. While this provides a rapid method of travel, it can also cause players to miss important items and clues. Some items can be carried by the player and read, including journal pages which provide backstory. Players can only carry a single page at a time, and pages return to their original locations when dropped.

To complete the game, the player must fully explore the island of Myst. There, the player discovers and follows clues to be transported via "linking books" to several "Ages", each of which is a self-contained mini-world. Each of the Ages—named Selenitic, Stoneship, Mechanical, and Channelwood—requires the user to solve a series of logical, interrelated puzzles to complete its exploration. Each Age must be explored to solve the game's primary puzzle on Myst.

Apart from its predominantly nonverbal storytelling, Mysts gameplay was unusual among adventure games in several ways. The player is provided with very little backstory at the beginning of the game, and no obvious goals or objectives are laid out. There are no obvious enemies, no physical violence, no time limit to complete the game, and no threat of dying at any point. The game unfolds at its own pace and is solved through a combination of patience, observation, and logical thinking.

Plot Players assume the role of an unnamed person who stumbles across an unusual book titled "Myst". The player reads the book and discovers a detailed description of an island world. Placing their hand on the last page, the player is transported to the world described and is left with no choice but to explore the island. In the island's library, two books can be found, colored red and blue. These books are traps that hold Sirrus and Achenar, the sons of Atrus, who once lived on Myst island with his wife Catherine. Atrus writes special linking books that transport people to the Ages that the books describe. From the panels of their books, Sirrus and Achenar tell the player that Atrus is dead; each brother blames the other for the death of their family, as well as the destruction of much of Atrus's library. Both plead for help to escape. The books are missing several pages, rendering the sons' messages unclear and riddled with static.

As the player continues to explore the island, books linking to more Ages are discovered hidden behind complex mechanisms and puzzles. The player must visit each Age, find the red and blue pages hidden there, and return to Myst Island. These pages can then be placed in the corresponding books. As the player adds more pages to these books, the brothers can be seen and heard more clearly. After collecting four pages, the brothers tell the player where the fifth and final missing page for their book is hidden; if the player can complete either book, that brother will be set free. The player is left with a choice to help Sirrus, Achenar, or neither.

Sirrus and Achenar beg the player not to touch the green book located by their final pages, claiming it to be another trap book like their own. In truth, it leads to D'ni, where Atrus is imprisoned. When the book is opened, Atrus asks the player to bring him a final page that is hidden on Myst Island. The game has several endings, depending on the player's actions. Giving either Sirrus or Achenar the final page of their book causes the player to switch places with the son, leaving the player trapped inside the prison book as the son rips the pages out. Linking to D'ni without the page Atrus asks for leaves the player and Atrus trapped in D'ni. Bringing Atrus the page allows him to complete his Myst book and return to the island. Upon his return, Atrus returns to his writing and allows the player to explore Myst and its Ages at their leisure, while also asking them to be on hand to help in the future, as he was contending with a greater foe than his sons (setting the stage for Riven). Upon returning to the library, the player finds the red and blue books gone, and burn marks on the shelves where they used to be.

Development Background In the late 1980s, brothers Rand and Robyn Miller were living apart in the United States. Robyn was taking a year off from university in Washington state, writing and trying to establish residency, while Rand worked in Texas as a computer programmer for a bank. Rand approached his brother with the idea of making an interactive storybook using HyperCard. The brothers were not big video game players themselves, although they were familiar with Dungeons & Dragons and had played Zork. In his parents' basement—Robyn did not own a computer himself—Robyn began drawing pictures and creating a nonlinear story that would eventually become their first game, The Manhole.—Mirrored on YouTube. The Manhole and the games that followed—Cosmic Osmo and Spelunx—were specifically aimed at children and shared the same aesthetics: black-and-white graphics, point-and-click gameplay, a first-person point of view, and explorable worlds. Robyn recalled that the games were more about exploration than narrative: "In the projects we did for children, we didn't really tell stories ... They were just these worlds that you would explore."

Around 1990, the brothers decided to create a game that would appeal to adults. Among their goals were believable characters, a non-linear story, and for the player as protagonist to make ethical choices. The Millers pitched the game to Activision under the title The Gray Summons; Robyn recalled that Activision told them to stick to children's games. At the time of the rejection, they were not doing well financially—"we were eating rice and beans and government cheese and that [was] our diet." Facing the end of their game-producing career, Japanese developer Sunsoft approached the Millers to create an adult-oriented game. Like with The Gray Summons, the Millers wanted their game to have a non-linear story with believable characters and an ethical choice. They also wanted to produce a game with far more impressive graphics than their previous efforts, at one point considering an entirely hand-drawn game. They also knew their story would be a mystery.

Development of Myst began in 1991. The game's creative team consisted of brothers Rand and Robyn, with help from sound designer Chris Brandkamp, 3D artist and animator Chuck Carter, Richard Watson, Bonnie McDowall and Ryan Miller, who together made up Cyan, Inc. Myst was the largest and most time-consuming collaboration Cyan had attempted at that point. Cyan took inspiration from games like Zork, Star Wars mythic universe, portals to other worlds like in C. S. Lewis' The Chronicles of Narnia, and the mysterious islands of old literature like the works of Jules Verne. The game's name, as well as the overall solitary and mysterious atmosphere of the island, was inspired by the book The Mysterious Island by Verne.

Sunsoft was not interested in the PC market and was focused on the video game console market instead. At the time, consoles had no hard drives and small memory buffers, meaning the game had to be designed around these technical constraints. To solve this issue, they compartmentalized parts of the game's environments into the different Ages. The Millers decided that most people did not like puzzles. Thus, a good puzzle would feel familiar and part of the world—not like a puzzle, but something for players to figure out like a circuit breaker in their house, using observation and common sense. Cyan did not have fans to please, and did not know exactly who the game would appeal to; Robyn felt like they did not have to second-guess their choices and could "explore the world as we were designing" and build a game for themselves. Rand stated that they strived to design the puzzles in Myst and their subsequent games by trying to balance three aspects: the puzzles themselves, the environment, and the story. They wanted to make sure that clues to the solutions to puzzles were apparent and presented to the player in a manner for these connections to be made: "once the player finds the solution, if they blame us, then we haven't done a good job. But if they blame themselves, then we have."

The Millers prepared a seven-page game proposal for Sunsoft from their ideas, mostly consisting of maps of the islands they had envisioned. Cyan proposed Myst to Sunsoft for $265,000—more than double what they thought it would cost to develop the game, but ultimately less than the game's final cost. Sunsoft had asked the brothers if their game would be as good as the upcoming The 7th Guest, another CD-ROM video game that had been shown in public preview demonstrations; the Millers assured them it would. After getting the go-ahead, Cyan play-tested the entire game in a role-played Dungeons and Dragons form to identify any large issues before entering full production.

Production

Myst was not only the largest project Cyan had attempted, but also took the longest to develop. The brothers spent months designing the look and puzzles of the Ages, which were influenced by earlier whimsical worlds made for children. Much of the early development time was spent devising puzzles and the Ages, and the story was secondary. "We were place designers [...] and the maps kind of fueled the story," Rand said. The plot evolved in tandem with the changing environment, developing new story details with each new building in the world. They realized that the setting would require developing more story and history than the players would actually see. The climactic ending with Atrus was a later development in the game's story, after Cyan realized they wanted to create a more complicated ending. In retrospect, Robyn felt that Myst did not quite provoke the emotional reaction and ethical quandary they set out to create.