Wonder if this game is Diablo 2 or is there such thing as Diablo 1.

Thx bro

P.s

I love diableu

Diablo preceeded Diablo 2 by several years. There are some similarities and the lore is the same but Diablo 2 is much larger and has far more content.

All Diablo - absolutely differ games. Moreover, first one - from another devs ppl. All others installmennt - not a Diablo. There is only first one. Admit it.

Its like WC2 and WC3... ya, i think it right. Still you can enjoy Diablo 2 LoD (WC3) after D1 (WC2), but not D3 (WoW Cat\Panda and above)

Why wouldn't there be a Diablo 1 if there's a Diablo 2? @_@

The engine appears to be derived from Diablo 1, but it's heavily rewritten.

Well from my point of few : Diablo 1 is closer to Diablo 2 in Gameplay and Style than Diablo 2 to Diablo 3

Diablo 1 (without the expansion) was the first part of the story in Blizzard's Diablo franchise.
In Diablo 2, you're basically playing in the world a few years after Diablo 1.
In the expansion Lord of Destruction for Diablo 2, you're playing a years after Diablo 2.
In Diablo 3, you're playing in the world almost 2 decades after Diablo 2.
In the Soul expansion of Diablo 3, you're playing a few months after Diablo 3.

The Hellfire expansion is technically only partial canon because it was made from copied asset from Diablo 2's early development. To put it bluntly, Blizzard has changed hands many times during only a few years (in 1994, it was owned by Davisdson & Associates, then by CUC International in 1996, then HFS Corporation in 1997) During all those switch, while Blizzard acquired Condor Games (who became Blizzard North) which end up making Diablo 1. Initially, they worked on Hellfire as an expansion for Diablo 1 and annouced it publicly, but the project got so big and way too complex for the Diablo 1 engine that Blizzard North decided to change the project from an expansion to a separate game. (After all, the expansion was changing over 85% of the original game over 95% of the engine.)

Davidson, in 1996, attempted to get some fund requested that Blizzard (and Blizzard North) rush with the Hellfire expansion, but as Blizzard North was against it, they snatched the work done on the server and gave the task to another division they acquired as well when they took Sierra: Synergistic Software. So, while Blizzard North was aiming for a totally new upgraded experience, Synergistic Software had an old beta version of Diablo 2 initial files (as an expansion) and retro-fitted it into Diablo 1. Hence, why so many new things in Hellfire seems like an early version of Diablo 2's features.

The irony was that Davidson in such a poor state in 1997 (around the time they got acquired by HFS Corporation) that they didn't had enough time to "convince" Blizzard to add the Hellfire to the online server of Diablo 1 (which became Battle.net with Diablo 2). This is why you can't play on Battle.net with the Hellfire expansion as Blizzard, back at those days, didn't even knew that someone was using a part of their work to produce the Hellfire expansion.

I always thought the assets used in Hell Fire were contained within the original Diablo 1 MPQ's but were just unused? Is this incorrect?

Only about 2/3 of the monsters and items where already on the original cd. The levels and npc are completely new