Probably best thought of as "part 2" rather than a sequel. Doesn't really introduce any new themes or perspectives, but does preserve the charm of the first game. However, the landscapes, while mostly empty, feel unfinished rather than desolate. Desolation requires points of reference (buildings, plants, etc.) so that we understand how empty a place is via comparison. This has some, but not enough. The first few minutes were good– the arctic sequence was terrible. Can be finished in just a few hours, so worth your time if you liked the world of the first game.