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ValveTime.co.uk | Valve News, Forums, Steam
I hate to say it, but you know how Valve were making the Source engine for so long and put in so much money into it? From a point of view that was a waste...
It took 5 whole years for Valve to make Source and you saw the vids/screens etc. on it. But, Epic, the creators of Unreal, have been making an engine for Unreal 3 for about 18 months and is due out on 2006, in these 18 months of development the graphics look about 5 times better than Half-Life 2's, even the physics look better... Weigh it, 18 months. 5 years.
There's a huge difference...
If you want proof google the keyword "Unreal 3" (Without the ")
But, that's only from a technological point of view, I mean Half-Life 1 lasted this long, I think Half-Life 2 will last quite long aswell.