Cheats

WIZARD mode
There is a WIZARD mode for testing features of the game. To get into WIZARD mode, type in an underscore '_' and answer the prompt for the password with 'pvnert(x)' (do not enter the quotes). Wizards are non-scoring characters that get magic mapping, everlasting expanded awareness and one of every object in the game.

Since it's easy to lose your game due to a browser crash, accidental back button press, or closed tab, there are 2 new 'wizard' passwords. Using the password 'checkpoint' will load a backup of a checkpoint file, and 'savegame' will resurrect a previous save game. Obviously this can be used to cheat, but it was already pretty easy to cheat before. Be honorable, always.

Source: https://github.com/primeau/Larn