Travel in and the exploration of the game world in Sepulchre is neither linear, nor multilinear. It is nonlinear.
This discussion contains spoilers for Sepulchre, a 20 minute long free point-and-click adventure. So, feel free to download and play it at Owl Cave Games web site before reading on.
A train might seem like the worst metaphor possible for a video game. We are often reminded (or at least often hope) that what makes video games different from other artistic mediums, like novels, films, or music, is their ability to tell a different kind of story. We talk a great deal about player choice, divergent paths as a result, and the possibilities of a multilinear experience. Quite the opposite of a train (or most novels, films, and music), the video game affords the opportunity for branching paths and different resulting conclusions. Indeed, if a game is “on rails,” this usually isn’t considered a positive—at least from the perspective of narrative progression.