Blood on the Clocktower is a social deduction game created by Steven Medway and published by The Pandemonium Institute.

Each player is randomly assigned a secret good or evil role with a unique ability, and must help their team achieve its win condition.

[2] If a player is uncertain whether they can stay the entire game, or they enter late, they can play as Travellers with special abilities.

[7] There are currently three official scripts available from The Pandemonium Institute, which each come with their own roles and mechanics: "Trouble Brewing", "Sects & Violets", and "Bad Moon Rising".

[2] Three additional official scripts "Garden of Sin", "The Tomb" and "Midnight in the House of the Damned" are being developed.

[8] The Pandemonium Institute provides an online tool that allows players to create custom scripts by combining characters from different editions together.

[3][10][11] During the Kickstarter campaign, Shut Up & Sit Down released a video review in which Quintin Smith called it his "favorite game".

Christopher Eggett, editor of Tabletop Gaming, praised it for its enjoyable gameplay and "longevity" due to the many roles and setups.

[23][24][25] In 2021, The Pandemonium Institute launched a Twitch channel showcasing online games with fans in the community.

[26] In 2022, The Pandemonium Institute released an official web application designed to play the game online.