This week has been a celebration of all things Doom. Not only has the series seen its 25th anniversary, but the iconic shooter's co-creator, John Romero, has now also announced a new chapter for the original game.

Going under the title of Sigil, this new chapter is the unofficial successor to Ultimate Doom and picks up immediately following the events of the 90s' Thy Flesh Consumed levels. It will feature nine new single-player levels which will see players blasting through hordes of cacodemons, imps, lost souls, and other classic monsters from the original game with a familiar array of weapons including the plasma gun, rocket launcher, and the now iconic shotgun. There will also be nine new Deathmatch levels included.

Interestingly, in order to run Sigil players will need to own a registered 1993 version of the original Doom. From here, Sigil can be added as a free megawad.

The new chapter can also be picked up as via Limited Run Games who is releasing two gorgeous and well detailed big box physical editions of the game. The standard edition packs a floppy disk themed USB containing the megawad, the game's soundtrack on CD, and a pair of stickers. The Beast edition will then feature all of the above along with the dual-case CD being switched out for a booklet style case which also features behind the scenes information regarding the making of the original Doom.

To sweeten the deal, the Beast edition also features a Sigil t-shirt, a coin sporting a demonic symbol, a pewter statue of Romero's head on a pike as seen in Doom II, and a print signed by the box art's illustrator Christopher Lovell who's known for his work with such rock and metal acts as Misfits, Children of Bodom, and Suicide Silence. All of this is then neatly contained within an enormous box that has been personally signed by John Romero.

Sigil is scheduled for release sometime in mid-February, 2019. You can check out the game in action via the trailer below.