Chrono Quest is an adventure game told in still images and text windows. Controls are implemented by various icons around the screen border. The gameplay basically is somewhere in between modern point&click adventures and graphics-supplemented interactive fiction.
The plot starts off some time around 1920 in the mansion of the main character's father, which was murdered and left the protagonist as the main suspect. In the course of exploring the mansion, the player finds a time machine and starts tracking down his father's murderer through the ages...
The box cover art was done by renowned artist Roger Dean; the game also came with a roughly 17" by 20" poster print of the artwork.
The cover is also an important part of the game's copy protection scheme - the box includes a grid printed on translucent paper to be overlaid on the box cover; the copy protection will then ask for the color of one of the squares in the grid before the game loads.
In comparison to the original French release, the music is different in the US release.