* The Survival Games (2010)
* Escape from Mr. Lemoncello's Library (2013)
* Mr. Lemoncello's Library Olympics (2014)
* Mr. Lemoncello's Great Library Race (2015)
* Escape from the Carnival of Doom (2017)
* Bibliofilens gåde (2018)
* The Quest of the Hidden City (2019)
* Mr. Lemoncello and the Titanium Ticket (2021)
* The Escape Room of Time (2022)
noveller
* "Den forsvundne bibliotekar" (2014)
* "Kampen om bøgerne" (2015)
* "Mysteriet om det forsvundne manuskript" (2016)
* "The Tale of the Tell-Tale Heart" (2017)
* "The Case of the Curious Contraption" (2018)
* "Det forvirrende puslespil ved det stjålne maleri" (2019)
* "The Curious Caper of the Clockwork Conundrum" (2020)
* "The Mystifying Maze of the Mirrored Mansion" (2021)
* "Den spændende fælde i det forræderiske tårn" (2022)
Andre værker
* The Escape from Mr. Lemoncello's Library Graphic Novel (2017)
* Mr. Lemoncello's Library Olympics Graphic Novel (2018)
* Mr. Lemoncello's Great Library Race Graphic Novel (2019)
* Mr. Lemoncello's Guided Journal (2020)
* Mr. Lemoncello's Puzzle Challenge Book (2021)