Well first time I tried to play Doom back in late 90's without mouse-look (just keyboad controls) I did not like it.Catchy Slogan said:I honestly don't know. There might be a mod floating about somewhere.Treblaine said:Is there a good sourceport? One that lets me use real mouse aim and full keyboard/mouse-control mapping?Catchy Slogan said:The Marathon Trilogy is free.
http://www.bungie.net/Forums/posts.aspx?postID=29763080
But with the Zdoom source-port (you need the original game, or "WAD" it acts like a super-mod) I had mouse aim and I have to admit it is FPS PERFECTION! OK, it is very limited, but what it does do it NAILS!