It's shorter, but this is just as much fun as the original Half Life 2! However, the light smattering of harsh language in the previous game is amplified in this, words such as d--n and c--p appear often, and in the first level the word s--t is cut off, but still recognisable. There is also the violence, and with even more intelligent and deadly zombies, or zom-bine, this is even creepier than Ravenholm. Also, in Half Life 2, the Combine had stopped the human reproductive cycle. This is no longer the case, and Dr Kliner explains that humans can now, as Alyx puts it 'get busy'. Some citizens also talk about how they can now reproduce, but its not as though you see anything going on. This game is scarier and harder than the previous game, but this is a must play, especially if you've already played Half Life 2. Probably the worst half life single player full game, but that doesn't make it bad.