If you've never played the Diablo series before, this may be not the place to start. I'd suggest Diablo III instead, which is available without cost on your PC. For Diablo players, Immortal is at least worthy of a look. However, be aware that Diablo IV Gold the game requires a significant amount of your time, or, more likely the majority of your money.
The Diablo franchise is in a state of confusion at the moment. Diablo Immortal has been a runaway financial achievement for Blizzard however, Diablo's standing due to its questionable, and possibly excessive monetization. Diablo 4 has looked impressive in gameplay trailers and the like, though many players have expressed concerns it will mimic Diablo Immortal's microtransactions. Blizzard has tried to assure players about the microtransactions in Diablo 4 however we don't know for certain how they'll work until the game is out.
Diablo 4 currently lacks a specific release date, but it's expected to be released at some point in the first quarter of 2023. It appears that Diablo 4 fans who are interested in knowing when they'll be able to play the game need to tune into The Game Awards in December.
Diablo 4's world allows players to move on and resume the story whenever they want, however there is going to "allow flexibility for non-linearity" The story will be told through "a beginning, middle, and end".
In an interview with IGN, Diablo 4 director Joe Shely and general Diablo 4 Gold manager Rod Fergusson opened up on what the latest adventure has to offer to fans of the franchise as well to provide a glimpse into how the game's story mechanics differ from the Diablo games that have come before it.