3 of them but i cant get any of them to launch even after verifying. Sins wont launch. The Beast asks for disc 1?!?!?? i cant get any help from steam support. im redirected to sierra which is actiivision but the games arent listed. can anyone help?

Hi guys. weird question but does have steam version of this game different soundtrack than GoG ? I've been playing Gog version and the soundtrack doesnt sound same as on youtube. Are GoG and steam different versions ?

Are there any other games similar to this one? Point and click, great atmosphere, sort of dark, matching soundtrack, good voice acting. Thank you.

Can't get past the zombie in room 5

I can't find anything as all I see are squares, I understand this is an old game but isn't there some way to correct it