Need helps`

So next week I start student teaching, but this week I have nothing to do Wednesday, Thursday, and Friday. With my newly found free time I plan on doing some more preparation, but I need something to fill in the gaps in between. I have a free rental that I can use to get a game so I was wondering which one I shall get. I am thinking of passing on Too Human, unless someone says otherwise. What would be a good marathon game to play? Should I beat every other civilization as the Romans for three days? Help me out please.