Encyclopedia Hârnica is a series of sixteen booklets that provides supplemental information about the Hârn game world.
Each issue covers a variety of topics: Each new Encyclopedia Hârnica booklet appeared monthly beginning in 1984.
[3] In the August 1984 edition of White Dwarf (Issue #56), Simon Farrell noted that in the first three issues of Encyclopedia Hârnica, the editors invited feedback and ideas for future articles from subscribers; Farrell speculated that, given the monthly nature of the periodical, if this feedback was quickly used to create articles for a four-week turnaround, "we can expect to see a decline in quality as time goes on.
74), Allen Varney reviewed issues #3-11 and gave a thumbs up to Encyclopedia Hârnica, saying, "The detail is copious, the range impressive – not to say forbidding.
"[2] In the March 1986 edition of Dragon (Issue 107), Eric W. Pass said the periodical contained "An excellent variety of useful articles."