I played this game as a teenager many years ago when it first came out. I remember buying it with the many floppy disks (15) I think for the Amiga... Loved the game then and still love it now. When I saw it was free on Steam i just had to go down memory lane again...
Only Tip I'd give to save you many many hours is to look online for the walkthroughs. I spent hundreds of hours originally to complete the game and even with the walkthrough it still takes a good few hours to complete.