After 6 years and a thousand hours (most of them before the steam release), it's still the best FPS that has ever existed. And now it's playable again without jumping through any hoops and it frequently goes on sale for up to 90% off. At that price, it's an absolute must-buy. Even if you don't care about multiplayer, the campaign alone for that price is still a steal.

After 6 years and a thousand hours (most of them before the steam release), it's still the best FPS that has ever existed. And now it's playable again without jumping through any hoops and it frequently goes on sale for up to 90% off. At that price, it's an absolute must-buy. Even if you don't care about multiplayer, the campaign alone for that price is still a steal.