New DOOM has an amazing set of Easter Eggs for the fans of classical installments. This was revealed to IGN in the recent id Software's DOOM video.
Beware of spoilers below!
The video below will showcase one of the secret chambers hidden in each DOOM level. These secret chambers will be familiar to anyone who has played the first and the second game of the series. As the developers say in a video below, after finding each hidden room the player will be able to play a complete level entirely made of texture and pickups of the original game: