The guys at WorthPlaying have written up their own review of THQ and Iron Lore's Titan Quest, giving the action RPG an overall score of 9.0/10.
When it comes to Diablo clones, I've played them all; Sacred, Harbinger, Blade & Sword, Dungeon Siege, and Space Hack. I've also loved each and every one of them for reasons unique to each. Titan Quest is easily the best of the lot, simply for doing everything this type of game requires and doing it better than all of its contemporaries. The fact of the matter is, I feel that this is the first title within this (genre) of sorts that is actually as good as Diablo 2. It's beautiful, it sounds great, it's superbly written, and it's drenched in timeless mythology. It even sports endlessly entertaining rag-doll physics; I never grow bored of striking a monster so hard that its corpse is thrown through the air into a little heap. Sometimes you can even knock them off of cliffs! The three flaws Titan Quest suffers from are all issues that can be easily remedied via patches, and Iron Lore has already proven their willingness to support this fantastic game. A little patience and we're set. In short, if you love action-role playing games and Clash of the Titans, then Titan Quest is without any doubt a must-have title. Now if you'll excuse me, I have some punishment to dish out in the deserts of Egypt.