6Quest is Hungarian interactive fiction based on a gamebook series. The creators are currently running a Kickstarter to have the app translated into English for a wider audience.
I was able to find this list of Hungarian gamebooks by Demian Katz, but I’m not even able to translate the titles, so I don’t have a huge amount to go on. So I asked Paul Muranyi to tell me a little more of the history of gamebooks in Hungary, as well as the current scene and their project.
Emily Short's Interactive Storytelling 