Acht, by Wiebke Scholz. Can be played in English or German. [file is linked to games/twine/Acht.zip]
Auf der Eisi, by liebe. Creative Commons 4.0 International License. [file is linked from games/source/twine/german/AufDerEisi.zip]
Das Vermächtnis, by Sorrow Monarch.
Der Doppelgänger, by Alexander Klimon.
Halloween, by vk.
This little journey of yours, by Tequilawolves.