Did you check the folder where the game is installed now? Maybe you still have them there from before and you can just move them to the folder I mentioned.
Anyway, to be absolutely sure, open This PC (or My computer, you didn't specify which Windows are you using so I can't tell how it's called on your machine) and type *.rsg in the search bar. If the saves still exist somewhere on your computer, they should be found that way.
Drakan's uninstaller doesn't delete saves on uninstall.
"When a human being takes his life in depression, this is a natural death of spiritual causes. The modern barbarity of 'saving' the suicidal is based on a hair-raising misapprehension of the nature of existence." - Peter Wessel Zapffe