Spell memorisation

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Version 0.11: This article may not be up to date for the latest stable release of Crawl.


Spell memorisation is the process by which you learn spells from spellbooks in your inventory. This can be done by clicking on the spellbook, viewing the Memorisation tab of your inventory screen, or pressing M and selecting the desired spell from the list.

Memorisation restrictions

While any character may gain access to spells, the following restrictions apply:

Memorisation success

Your chance of success at memorising a spell is related to your chance to cast the same spell (calculation is not exactly the same, but close). You can guess the chance you have to memorise a spell by looking at the warning message you get:

Warning message Chance of success
This spell is very difficult to memorise <15%
This spell is quite difficult to memorise 15–48%
This spell is rather difficult to memorise 48–75%
This spell is somewhat difficult to memorise 75–92%
This spell is not that difficult to memorise >92%

"Difficult" may be replaced by "tricky" or "challenging"; "memorise" may be replaced by "commit to memory", "learn", or "absorb". These changes are only flavour.

Failing to memorise a spell has no effect, except from a Book of Annihilations, a Book of Demonology or a Necronomicon. In these cases, you'll suffer a (likely high level) miscast effect from Conjurations, Summonings or Necromancy, respectively.

History

In 0.12 spell memorization failure will be made binary: all of the reasons given above for not being able to memorize a spell will remain true, but the difficulty-based random chance to memorize a spell will be removed. Instead, any spell with a nonzero success rate can be memorized, although the game will warn you if casting the spell carries a significant risk of nasty miscast.