It's a point-click adventure game, but problem is that there are too much pixel hunting. It's very bad, because you can be stuck a long time in the game because you have missed liitle thing. Also there are too many locations availible in the same time and sometimes you just wonder around because you dont know what to do and where to go. Also there are some bad puzzles but there are some very good ones and sometimes some puzzles are in real time. Graphics is very good.
Characters look stunning, lip synchronisation makes game feel more real.
Only outdoor enviroments have some bad textures, but overall is really good. It's one of the most detailed graphics seen in a computer game. Sound is good. Sound effects are decent, music is creating atmosphere very well. Acting is mostly very good, but Tim Curry as Gabriel Knight has some weak points what are iiritating.