Minefield v0.49e (2013/12/30) is available for OS/2 and eComStation.

Minefield is a simple minesweeper clone written in qt4.
This port requires the Qt 4 libraries and libc libraries.
Link: ftp://ftp.netlabs.org/pub/qtapps/Minefield-0.49e-os2.7z
Web: http://www.konarski-wuppertal.de/andreaskw/Mienenfeld.html
Port by Elbert Pol.