So i have my downloadable game version for like a year or more, but im new on steam.
Does anything i do in steam might change something in my account? i mean, can i use/bind my old account to steam?
do i have to worry about something like knights being reseted or so?
Yes, you can convert your account to Steam, but you will no longer be able to use that account on the downloaded version. I had to re-download it, just so Steam would recognise it. :U Also, you can only use Steam methods of payment, but have the option to Steam trade for stuff like TF2 Refined Metal or whatever. You may wish to have a non-Steam account as a result, since Steam servers have been known to crash at inopportune times, rendering it impossible to log on to your Steam SK account.
Your knight will not be reset when you convert to Steam, though.