Just as good as Doom3, practically the same game
The gameplay was the same u had some new weopens such as
Double barreled shotty, Grabber and the artifact these weopens make the game really fun
The graphics and sound engine are the same as doom3 still awsome
The storyline is pretty good and u still visit some vicinities from doom 3 and some new places in hell
The only downside is that is too short but a big up is that it has doom1 and 2 on it. and its only 20bucks. Also theres no online co op but it still fun.
Overall this is a solid shooters and is great for anyone who liked doom3
but if u have the colecters edition u might not want it.