realMyst, sometimes known as Real Myst and stylized as realMYST, is a fantasy, first-person, puzzle-adventure game developed by Cyan (along with Sunsoft) and published by Mattel for the PC on November 15, 2000. It later received a Mac release by MacPlay on April 10, 2002.
It is the first remake of their earlier 1993 game Myst, switching from the original's traditional point-and-click navigation of pre-rendered scenes to a new free-roaming, real-time 3D graphics and game engine (with some of its point-and-click interaction still intact). It also features a bonus epilogue Age (known as Rime). It was later succeeded by the 2020 remake, known simply as Myst.
The 3D engine, known as Plasma and later powered Uru and Myst V, allowed for less-clunky navigation, more elaborate animations, and new weather effects (such as day/night cycles). It later received an enhanced revision in 2014, known as realMyst: Masterpiece Edition, that switches the engine to Unity while improving support for modern operating systems, updating the graphics, and adding the original's point-and-click navigation as an option.
The original realMyst was re-released digitally by Cyan (then Cyan Worlds) themselves for the PC on August 4, 2010, and later received an iOS release on June 14, 2012 and an Android release on January 25, 2017. The Masterpiece Edition version was released digitally for the PC and Mac on February 5, 2014, with a Nintendo Switch release later on February 28, 2020. The Switch version received a limited retail release from Limited Run Games.