Ok, so I went to Wikipedia to look up some of these and decided to give my opinion.
Spacewar! (1962)-Apparently it was the first computer game ever made aside from
this so that's pretty self explanatory.
Star Raiders (1979)-Interesting game and seems to be the first space flight shooter in addition to packing quite a bit into an Atari game.
Zork (1980)-This was a text based adventure along the lines of Dungeons and Dragons. I can see where this would be important because it seems to be the first example of a story-driven game.
Tetris (1985)-duh I mean really, who
wouldn't see this as an influential game? Not only did it basically invent the puzzle game genre but also pick up and play casual games that appeal to the masses. The only other game I can think of that brought so many people into video games was pong.
SimCity (1989)-Invented sim games, what else can be said about it?
Super Mario Bros. 3 (1990)-Like someone else said this should really be the first Super Mario Brothers. The first one laid the foundation that was needed for the third one to even exist.
Civilization I/II (1991)-This is the first one I completely disagree with. It may be a good game but at the end of the day its really just expanding upon Sim City by bringing it to a larger field. I know the gameplay isn't even close to Sim City but I really don't feel like Civilization was
that influential despite being a very solid game that is still held in high regard.
Doom (1993) -Sorry, but Wolfenstien 3d really should be on this list in place of Doom. Once again, Doom may have done it better but it wasn't the first of its kind.
Warcraft series (beginning 1994)-Really? Who's gonna disagree here?
Sensible World of Soccer (1994). -So, apparently its some massive Soccer game that tries to include all the soccer clubs. I guess in America we don't really see much of an impact because Soccer isn't very popular but it seems as if it laid the groundwork for sports games including team management so I can understand.