INSIDE by game developer Playdead is a single player platform puzzle adventure game. It is actually one of the more heart stopping and suspenseful games I have played in a while. It may not look like much, but the dark aesthetics with the ominous music and constant threat of your character dying by some unseen horror make this quite an addictive game.
The story is pretty simplistic, your character is on the run from unknown enemies who are constantly chasing you with guns and attack dogs. To add to the dangers, there are other creatures that you entangle with throughout your journey who also wish to do you harm. Along the way you are also confronted with different puzzles such as turning switches on and off in the correct order in an effort to open doors etc. before you can reach the next destination. Sometimes the dangers are not from other creatures but physical limitations like running out of air whilst swimming under water or falling from heights.
INSIDE is available on all platforms including iOS but unfortunately not on Android.