Yes, Gothic 3 was crap, compared to 1 and 2,
In 2 I enjoyed the addon the most (brought back the
"Camp" athmosphere of the first game), although
after finishing the addon mission, it was unplayably hard in the main quest.

I bought 3, but this game has bad graphics (the landscape was ok, but especially
the people look silly)
and a much worser gameplay. So I quit after playing it 2 hours.
Was a nice example of destroying a working game-concept
by trying to appeal to the international market, and
rushing out the game too quick.

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Monkey Island is an Amiga game for me. Never played the
PC version.