The "Comrades" expansion allows you to create your own avatar within the world of Eos and team up with others to accept quests and take down monsters. While there doesn't appear to by any obvious connection between this off-shoot and the main game, there apparently will be some tutorial/single-player missions that will try to tie things together. Additionally, Noctis and his buddies will be added to the expansion as playable characters at some point in the future.

If you want to get in on this beta, then you'll need to pick up the Season Pass (assuming you haven't already), which will run you $24.99. You'll also need an active Xbox Live Gold or PlayStation Plus subscription. With both of those things secure, here's what you'll be able to do during that 5-day period:

DLC producer Haruyoshi Sawatari recently stated in an interview that at least four pieces of big DLC are planned for Final Fantasy XV, three of which will focus on single player content around the main characters. The fourth will bring them all together in an online cooperative environment. The exact details of how co-op will work are still under wraps. When pressed for details, Sawatari said the multiplayer would be "something similar to the multiplayer modes included with recent Bioware releases like Mass Effect 3 and Dragon Age Inquisition".