ZombiU.
The real ending only shows up after the credits where you are trying to escape London via an evacuation at the top of the Tower of London. On the way there hordes of zombies block your path, and this is the kind of zombie game where one zombie can easily kill you in one hit if you aren't careful.
If you die on the way up, game over, no retries, your character is dead and zombi-fied.
There's also a "survival" mode, where you play through the story, but on your first death its game over.
The real ending only shows up after the credits where you are trying to escape London via an evacuation at the top of the Tower of London. On the way there hordes of zombies block your path, and this is the kind of zombie game where one zombie can easily kill you in one hit if you aren't careful.
If you die on the way up, game over, no retries, your character is dead and zombi-fied.
There's also a "survival" mode, where you play through the story, but on your first death its game over.