Now I'm aware that there are 2 Bedlam games released way back in 1983 and 1988, however I'm more interested in the version developed by Mirage. Released way back in the mid 90s.
My understanding is that the game is called Bedlam and released in 97. However I noticed the demos floating around seem to label it as Bedlam 2: Absolute Bedlam. Did Mirage develop 2 Bedlam games or are just labeled differently based on regions?

IIRC it was called only "Bedlam", in our gaming magazine it had name and I think that the demo on cd had the same name

I played the demo back in the day and the game was hella fun!