Evael
Columbia Games: d20 3 (2002 Looseleaf)

Azadmere
Columbia Games: Generic (1986 )

Castles of Hârn
Columbia Games: Generic (1987 )

Chybisa
Columbia Games: Generic (1987 )

HârnWorld
Columbia Games: Generic (1990 )

Kaldor
Columbia Games: Generic (1986 )

Orbaal
Columbia Games: Generic (1987 )

Rethem
Columbia Games: Generic (1985 )

Castles of Orbaal
Columbia Games: Generic 1 (1992 )

Evael
Columbia Games: Generic 1 (1986 )

Gods of Harn
Columbia Games: Generic 1 (1985 )

Hârn
Columbia Games: Generic 1 (1983 )

Melderyn
Columbia Games: Generic 1 (1987 )

Son of Cities
Columbia Games: Generic 1 (1987 )

Tharda
Columbia Games: Generic 1 (1987 )

Earthmasters
Columbia Games: HârnMaster (2010 PDF)

HârnWorld
Columbia Games: HârnMaster (2014 Looseleaf)

Pamesani
Columbia Games: HârnMaster (2010 PDF)

Araka-Kalai
Columbia Games: HârnMaster 1 (1987 )

Encyclopedia Harnica, Issue 10
Columbia Games: HârnMaster 1 (1984 )

Encyclopedia Harnica, Issue 12
Columbia Games: HârnMaster 1 (1984 )

Encyclopedia Harnica, Issue 13
Columbia Games: HârnMaster 1 (1985 )

Encyclopedia Harnica, Issue 14
Columbia Games: HârnMaster 1 (1985 )

Encyclopedia Harnica, Issue 9
Columbia Games: HârnMaster 1 (1984 )

HârnMaster
Columbia Games: HârnMaster 1 (1986 )

HârnMaster
Self-published: HârnMaster 1.5 (1998 )
Kelestia Productions: HârnMaster 1.5 (2003 PDF)

HârnMaster Core Rules
Columbia Games: HârnMaster 2 (1996 )

Nasty, Brutish and Short
Columbia Games: HârnMaster 2 (1997 )

HârnMaster
Columbia Games: HârnMaster 3 (2003 )