I know this thread is ancient, but I've got one and I remember when this topic was booming.
There were two games I loved back when I was using
OS/2 Warp in 1995 and 1996. They were pack-in games. I believe one was called "The Wall" but I can't find any reference to it online. It was a puzzle game where you needed to move boxes around on brick platforms to match to similar boxes together, which would then disappear. When all the boxes were gone each level was done.
In a similar vein, there was another puzzle game which I have no idea the name of. You controlled a red and blue guy who had to push boxes to specific places to beat each level. There were a number of obstacles, but a big one was conveyor belts. Sometimes you would need to push a box onto a conveyor belt and then quickly move something at the other end of the conveyor belt to win.
Both of these games also had level editors built-in. I would make new puzzles to challenge my siblings. Again, both were small pack-in games, couldn't be run fullscreen. I think it'll be really hard to find them unless someone else remembers them.