DOOM Eternal is now available for PC and consoles, offering the latest installment in id Software's seminal first-person shooter series that began way back in 1993. The Windows edition is played through Steam, and you pick up your copy through Steam, or for 10% less (as of this writing) through Green Man Gaming. This is also available as a physical release, and retailers are listed on Bethesda.net. Paradoxically, this seems to be the least expensive option, as both Amazon and Walmart offer the USD$59.99 game for under $50.00, while there is also a pricier deluxe version for those who feel like splurging. Business aside, the previously released Official Launch Trailer offers a look at gameplay, and the Steam Listing has the following description:

Hell’s armies have invaded Earth. Become the Slayer in an epic single-player campaign to conquer demons across dimensions and stop the final destruction of humanity.

The Only Thing they Fear... Is You.
Experience the ultimate combination of speed and power in DOOM Eternal - the next leap in push-forward, first-person combat.

Slayer Threat Level At Maximum
Armed with a shoulder-mounted flamethrower, retractable wrist-mounted blade, upgraded guns and mods, and abilities, you're faster, stronger, and more versatile than ever.

Unholy Trinity
Take what you need from your enemies: Glory kill for extra health, incinerate for armor, and chainsaw demons to stock up on ammo to become the ultimate demon-slayer.

Enter Battlemode
A new 2 versus 1 multiplayer experience. A fully-armed DOOM Slayer faces off against two player-controlled demons, fighting it out in a best-of-five round match of intense first-person combat.