Basically, you are Minnie Driver, and your plane crashes on an island. Your mission is to get off the island in one piece. After playing Deus Ex, I'm not so sure that's true. However, it features about 8 different guns, and you can pick up just about anything in the game. However, I got used to if fairly quickly, and hardly EVER used the rotate functions anyways.
Heavy things act heavy, etc.
At the time, this graphics engine was state of the art. Now, it stands up poorly to games made of this time. The tree's are obviously a bunch of pixels in the distance - they get clearer as you get closer. Sounds directly from the movie. Trespasser was indeed a highly anticipated game which promised too much at the time of release.