Welcome to the Legend of Grimrock secrets guide! Please use the navigation bar to the right of the page to browse the secrets by level.
Note that secrets are categorized primarily by where they are accessed from. So, if a secret is technically on Level 4, but is only accessible by falling down a pit on Level 3, it will be listed in the Level 3 section. There are a few cases in which there is a sub-basement - these are also listed from the level they are originally accessed from (i.e. for a sub-basement on Level 5, see the Level 3 page).