This Book Is A Dungeon [This Dungeon Is A Book] (Nathan Meunier)  

"Question: What is this thing? 1) A dark, horror-tinged dungeon crawler Twine game sold within a Kindle book? 2) A hybrid Kindle book / indie game self-publishing experiment? 3) A bookumentary detailing the game's creation and this entire self-publishing experiment from start to finish? Answer: All of the above." - Author's description

Download demo (Windows, Mac, Linux)

Pre-orders & official site