I am experienced in Diablo & Diablo 2. I completed Diablo 3 Normal mode.

I can't help but feel something is missing in Diablo 3. However, ppl who never played Diablo before might like this a lot.
Overall, I have mixed feeling with this game.

Story:

Gameplay:
I like the skill animation. Enemy difficulty is pretty ok. Nightmare mode is interesting when running with friends.
Depth of the gameplay is a bit shallow for me. Diablo 2 gameplay is more detailed, allowing user to customize different build.
Why they take out the talent tree??? These can make the game more interesting and allow ppl to sell their characters in RMAH.
The D3 world is too small. Too linear. I expect side quests and as we progress to higher difficulty level, new areas are uunlocked.

Graphic:
Initially it feels weird. After a while, I think it is definitely more artistic than Diablo 2. But no more gothic horror feel.
Overall this direction is still acceptable for me.

Somehow i think that even D1 is scarier than D3.. by the way im in nightmare act2 now.. quite challenging.. nightmare mode only i started to enjoy the game abit as not like chopping around in normal mode..

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Added on May 21, 2012, 2:25 pm
to me i think that RMAH might not as a good move.. maybe is because im that kind of person who is willing to pay only for the game but not willing to pay real money for eq...