Deadlight

Deadlight is an action sidescroller where you are a survivor of a zombie apocalypse who is immediately separated from your party and searching for your family.  Level design is fairly simple - shoot a lock from a grate, jump to grab ledges and climb up buildings in this dystopia while avoiding zombies.

You do eventually get some weapons, but most of the levels appear to be designed with a speedrun mentality in mind, so you can avoid a lot by being efficient in what you do.   This also fell flat on its face in a couple sequences where the building starts collapsing around you and making one wrong move results in replaying the sequence.

The story has "bad guys" who captured your crew, when you finally rescue one of them from the base - you're chased in a seemingly no-escape situation with your companion who starts yelling "KILL ME!", whereupon you have a flashback to what really happened on Day 0.   Similar to the end of The Mist, you and your wife and daughter were trapped in a room with two bullets.   Blam!   Blam!   This gives you power to burst through some planks for your companion to escape -- and you to monolog while getting eaten.  

Pretty good quickie.