Siedjeey: Hello everyone!

I have recently bought Hammerwatch and this game reminded me of the good old Get Medieval. Since I still have a physical copy of it I went ahead and installed it but it doesn't seem to work on my computer any longer....
Does anyone have a solution for this? The game crashes the moment I start shooting or running with my character.
I am running Win 7 64 bit and have tried running it in Compat mode already too.