Free horror game Fractal Sailor is about flying an airship through infinite godflesh while eluding a monster

If ever there were a game not to play on a Monday when you've had minimal sleep and basically want to crawl under the table and eat three-day-old pizza, that game - or rather, "tech demo" - is Fractal Sailor. The work of Struct9 founder Matej Vanco, it hands you a distressingly unwieldy and roofless hovership and cuts you adrift in a vast ocean of malevolent mathematics. Read more