I have found this game called Flash Trek: Broken Mirror. I have been playing it for almost 3 Months & its an pretty good flash game. Heres the link if you want to download it:
http://www.webfossan.com/flashtrek/downloads/broken.zip .
It has been proven Virus free by me because i also run it on my windowz laptop. Here is the information page about it:
There are still an few bugs in it and they may bother you at times but overall it is an great game.