If you're old enough to have fond memories of playing text-based PC games where you had to avoid being eaten by a grue, you'll love Lifeline. If not, you'll probably like Lifeline anyway.
It's a gripping interactive story where you have to try to save an astronaut named Taylor who is stranded alone on an alien planet. One reviewer said, “I’ve played many games that I find engrossing, but Lifeline may be one of the first that changed the way I thought about my daily routine, which leapt off the screen and became a part of my lived experience.”
You can play Lifeline from your iPhone, iPad or Apple Watch, and it currently gets 4.5 stars from customers.