This game calls its civilizations "races" and has slavery as a prominet part of the game, but there is the abolition eventually. It does not feel like a successor to Civilization II. The wonders of the world are  all new, as is the technology tree. The interface is new, and you cannot  use a keyboard to move units. I did not care much for its supposedly  improved graphics over Civilization II, I did not see that much  improvement, and by now the graphics are not cutting edge anyway.