FromSoft's massively popular--and just plain massive in general--received a co-op spinoff called Elden Ring: Nightreign earlier this year. The game sees groups of 1-3 players teaming up to take on the titanic threats in the new realm of Limgrave. It's been a hit with fans and critics alike, but it's also a big departure from the gameplay of the original Elden Ring. If you've been on the fence, now is a great time to give it a chance, as the Amazon-exclusive Elden Ring: Nightreign Deluxe Edition is discounted to $45 for Big Deals Days. This retailer-exclusive edition offers access to post-launch DLC, a mini digital soundtrack, and a digital art book. It also comes with an exclusive poster of Nightreign's key art in the box. The deal applies to PS5 or Xbox Series X of the game--but it's only available during Prime Big Deal Days on October 7 and 8.If you haven't played it yet, the original Elden Ring game is also on sale. Amazon is offering the PS4 physical edition for $30 (was $40), while the PS5 and Xbox Series X versions have been discounted to $40 (were $50). If you're planning to play on PS5, the PS4 deal is the best one here because Bandai Namco released a free upgrade for it a few years ago. This added an optional performance mode on PS5 that targets 60fps, increased graphical quality, ray tracing, and several other tweaks to Elden Ring's visuals. Elden Ring is considered to be one of From Software's greatest games, and is well worth picking up while it's discounted.Elden Ring DealsElden Ring: The Road to the ErdtreeFor a different spin on Elden Ring, check out the official Elden Ring: The Road to the Erdtree manga. This ditches the serious tone of the games, as it gives readers a humorous tour through Limgrave. The illustrations also do an accurate job of recreating the look and feel of the games, and several familiar faces pop up throughout the story.Elden Ring: The Road to the Erdtree Manga DealsVolume 1 -- $11.39 ($13)Volume 2 -- $11.70 ($13)Volume 3 -- $9.88 ($13)Volume 4 -- $13Volume 5 -- $8.80 ($13)Volume 6 -- $13Volume 7 -- $13 | Releases October 28There are plenty of other great discounts to take advantage of during Amazon's Prime Big Deals Day sale on October 7 and 8. You can find details on our favorite deals for video games, Blu-rays, and more over on GameSpot's deals hub.Sign up for GameSpot's Weekly Deals Newsletter: