What is .ZST file?
Game file saved by ZSNES, a Super Nintendo emulator for Mac and Linux; stores game progress in a saved state so that the game can be opened and resumed at a later time; now also supported by the Snes9x emulator.
NOTE: ZSNES provides numerous save states from 0 to 99, which use the file extensions .ZS1, .ZS2, and so on, for each save state. The files can be saved using the "Save State" option under the "Game" menu.
Recommended Software Programs to open .ZST file