Nachtigal is a Ren'Py visual novel. As such, it is available for Windows, Mac (requires 64-bit Intel Macintosh running OS X 10.6 or later), and Linux. The game is available as pay what you want-ware which means that you can pay as much as you think the game is worth or even snag it for free.
WARNING: This game contains a mild amount of gore in one of the bad endings, along with some violence. (Trigger warning: suicide) Player discretion is advised.
You don't need a credit card to download the game. If you do not wish to or cannot pay for the game, simply enter in a $0 amount and download the game for free. If you would like to tip us, any amount would be much appreciated.
Please also consider updating your graphic card drivers before trying Nachtigal. If you're having display problems, please check out this help page in the Ren'Py documentation.