Good examples! I regret that mainstream gaming has forgotten these games. Non-mainstream gaming hasn't, fortunately. There is the Interactive Fiction community, which has produced some of the best games I've ever enjoyed; there are some indie designers doing experimental games about personal issues -- I'll avoid mentioning them, because that's a can of worms I don't want to open here -- there is the "agitprop" of Molleindustria's Paolo Pedercini, etc.