Not because of the story, not because of the gameplay. The game plays itself like some sort of first person graphic adventure, ala Myst, but with no riddles, no great atmosphere, no great soundtrack and, basically, no fun. The story revolves entirely around one single fact which becomes pretty clear by the first half of the game (that is after 30 minutes, as it is very short). Graphically is pretty good, but absolutely not great: simple textures and a lot of things reduced to their most basical geometric shape. It gives a good vibe, but it obviously feel very "incomplete". In the end it's a sort of 1-hour-long ride which tries to teach you a lesson you already learned soon after it started. And, I reapeat, there's nothing funny nor enjoyable and this is the first and utmost basical thing: this game doesn't entertain. And a game which doesn't entertain it's, very simply, a bad, bad game.
This game has truly an unfair reputation. The game is hard, is hard because it was not done as it should have, but still is not horrible as many says. In my humble opinion Blood 2 - The Chosen is worse than Daikatana, and I quite love both of them, but nobody talks bad about the first. This game had outdated graphics when it came out, but for us, now, kinda every game looks old and we're on this website because screw graphics. It's kinda like playing Dark Souls, one error and you're done for, no save wherever you want... The game truly starts to be unbearable (and thus the three stars) when companions comes in. Their AI is so bad you just wish they could disappear, but besides them it's not bad at all. It needed polishing, but it's not the worst game I've ever seen. Give it a try, especially if it's in sale.