Line of sight

Version 0.18: This article may not be up to date for the latest stable release of Crawl.

The default line of sight (LOS) in Crawl is a 15x15 square

There are some ways to modify your line of sight:

• A lantern of shadows reduces LOS by 2 tiles
• The spell Darkness reduces LOS by 25%. The same effect is also provided by the shadow card and the Robe of Night.
• The nightstalker mutation reduces LOS by 1, 2, or 3 tiles depending on rank.

The following drawing shows fields within the default field of view with their grid distance.

777777777777777
766666666666667
765555555555567
765444444444567
765433333334567
765432222234567
765432111234567
7654321@1234567
765432111234567
765432222234567
765433333334567
765444444444567
765555555555567
766666666666667
777777777777777

History

Prior to 0.17, line of sight was circular with a radius of about 8.

In 0.7, the developers made an undocumented change to the LOS. Ranges are circular now, so every spell and ability that reaches a set distance got about two squares lopped off the diagonals. Stealthy characters can now reach their target in 5 squares (instead of 8) at certain angles.