Codex Entry Guide

Codex entries are worth getting, if maximizing experience and advancement is the goal. The following is a list of every known codex entry in Mass Effect, along with locations they are found.

Some entries may be attainable in multiple ways. Some locations can yield more than one codex entry, but only one per playthrough. It should still be possible to get all of the entries in a single playthrough, however, by visiting all of the locations.

See also: Scholar achievement.