Fallout 1, which I've probably replayed about ten times more than the second game. It's concise, with this depressing and dark world that gives a feeling never fully replicated in sequels.
Lords Of The Realm 2, a great little strategy game with an effortlessly charming aesthetic.
Civil War Generals 2, when I feel like really grinding out a strategy game. It has the bright colors and charming graphics which create a clear and readable battlefield that can be brutally difficult as units get ground down into ragged bands.
I don't know how long ago that was, but the hustle has long ago counter measured pirating or second handing the books by bundling the new books with a 1 time use code to make a profile into the online part of the course where you have to take tests. You could just buy the code on its own when I was going through this, but the code was like 80% the cost of a code and book.
They also do the thing where questions in the book will be scrambled from edition to edition, so using an older copy of a math book for example won't track because they've arbitrarily changed it just enough.