Dear Esther meets Amnesia in The Silent Swan, an open-world walk-o-story set inside a mysterious walled land with two towering empty cities. It has a demo in the Steam Next Fest and I think I want more? I was drawn in by screenshots of vast Gothic architecture, put off by frustrating slowness, then kept interested by the mysteries of our fella adrift in his former home. It does, at the very least, have pleasingly giant buildings rising from fog.