Minefield was written for the ZX81 48K in 1982 by R. Hunt.

Minefield is a game that runs on the 1K Sinclair ZX81. The object of this game is to score as many points as possible. To do this you must pilot your ship through a minefield. The game begins after the background and mines have been plotted. There is a bonus score if you manage to hit the "X". You are able to move by using "B" for down and "H" for up". If you collide with a mine the game concludes by displaying a score which is proportional to the amount of moves you have survived.

The following attributes can be used to map the evolution of Minesweeper. Blue cells are confirmed attributes for official versions of Minefield. Yellow cells are unknown.