You have to press the mouse button to continue. Sorry, it's indeed not stated anywhere, that a mouse is used to play.
Nevermind. I just found out, that if press a keyboard button, the game softlocks on the first screen. It works fine if you click with the mouse button though.
That's a bug, thank you for finding that.
ahh that makes sense. Thank you for the reply, I'll try working around it so I can play the game
