However I dont understand why it was firstly released in japan...
The series is long dead in the west. Only Japan still makes Wizardry games and you can tell the style is somewhat different from the original ones.
Really, it's a good metaphor for what happened to rpgs in general. I'm so glad Japan picked up the torch after the west dropped it. I don't think there's been any real western RPGs for any system in 5 years or more. The modern western "rpg" is always at least half fps or action, etc.