If you attach your Steam account via the “Identities & Achievements” page in your Account Settings, we are able to transfer some of the hours that you have accrued in Steam Games. However, you will not gain Reward Points retroactively for the game time played in Steam and we can't guarantee that this will work for all games.
We are unable to import playtime on other games prior to joining Raptr since many games and game companies do not provide proof of previous game time on a public profile page. Going forward, however, playing the game with Raptr running should provide an accurate record of your gaming sessions going forward.