The game's main menu literally explicitly encourages you to send it to your friends.... that's why I say it's drm free. Boot it up and check for yourself.
The game says its a DRM free game. "please be safe sharing, koboldkare does not need a crack to play!" Does not say please share. Its more like: If you need to get it without buying it, dont crack it and get a virus. does not need to be cracked. But it would help them to buy it.