H.E.D.Z.

I bought it about 6-7 years ago - at £2 (bargain right?). I thought it would provide me with some sort of fun for a while, but alas, no. It wasn't 'bad', but it just wasn't fun, it was just a mediocre game with uninspiring levels and dull singleplayer.

I think I bought dungeon keeper at the same time, I played that much much more.

Best story?
Actually, the Warcraft storyline and lore is rather good, thats probably my favourite.

Followed closely by the Half life series and Bioshock's storyline.