I played a lot of DOS games back in the day, but while I remember bits and pieces about many of them, the only ones I actually remember the names of are Space Quest and Commander Keen 4. I actually recently found an old box set of all 6 Space Quest games that I had bought years ago but never got to play since my old computer died shortly after installing them and I never got around to reinstalling them. Commander Keen 4 was one I remembered for years but had forgotten the name of, and I couldn't remember enough details to find it again. I had pretty much given up on trying to find it until I was randomly recommended some compilation videos on YouTube showcasing a few seconds of gameplay from a large collection of DOS games, which included a clip of Commander Keen 4. I have since downloaded the game and have had a lot of fun reliving some of my old memories of the game. Plus, now that I actually know what I'm doing I might be able to complete it too!