Loss of loved ones is the theme of half of these walking simulator adventure games, though I suppose siblings are rarer than some other relatives. The story is about dealing with bereavement and guilt, and moving forward, as you'd expect from this type of games. It was unfortunately released in the same month as What Remains of Edith Finch, the anthology of deceased love ones, and easily outshone in presentation. It does win the prize of the slowest moving speed in a first-person game ever. Combined with head bobbing that cannot be turned off, this game can easily knock you onto your bed if you underestimate it.