One second fires break out in your bridge, the next a boarding party blows out your ship's life support system. Moment to moment FTL presents you with a host of randomly generated crises, challenging you to figure out how best to handle them. Most journeys you take will present your adorably pixelated crew members with tragedy, but even failures are immensely gratifying, if for no other reason than it almost never occurs the same way twice. Try, die and learn is the mantra of FTL, and it's one that's easy to do for hours on end.