Two Flash games that I recommend (I put down time for this)

1. Phoenotopia
http://www.newgrounds.com/portal/view/644696
A game that's better than a lot of 3d games.
You play as Gale, a girl from a small town in the distant future. Earth has faced wars and now it's all fixed, but without technology. You find a robot head, and you think that it will help you with the problem that you will face. I think that I put down 11 hours on this game.
2. Rebuild 1/2
http://www.newgrounds.com/portal/view/562116
First one. A game where you manage a piece of city that you expand in a zombie pandemic. I think that it's a pandemic, but it could just be an epidemic.

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i'll Czech them out later

>not the greatest flash game ever in the history of flash games: Cyclomaniacs

Rebuild is pretty fun though, if not a tad repetitive.