Thread:Vorknkx/@comment-3547390-20120421171650/@comment-1496755-20120505101702

Episode 6 of Wolf 3D - this is non-linearity taken to the extreme. It's as if the levels were made with deathmatch in mind, even though the game does not have any multiplayer. I remember getting lost in them many many times :)

Backtracking is indeed one of the things I miss in modern shooters. I remember some games even allowed you to go back to previously played levels if you left some health or ammo there (e.g. Blake Stone).