Portal 3
From Create Your Own Story
After a flash of light, you find yourself on a strange stretch of flat, desert. A train passes by along a nearby set of railroad tracks. Off in the distance, you spot a settlement, and beyond that, an ocean. You turn around, and you can see another ocean not too far in that direction. Strange.
You check the MPS for more information about this odd world. It turns out there's just this one band of dry land around the equator. A railroad line encircles the planet, allowing for travel and commerce between the villages. Also there are velociraptors. The MPS doesn't tell you that. The sound of claws scratching the sand does.
You turn and see a pack of them heading straight for you. You might be able to lose them if you dash over the railroad tracks, as you hear another train approaching. Or you could, you know, shoot them with your laser baton. Your choice, really.