Larn
- Synopsis and feature list. Links to UNIX source files and Amiga, Atari, and DOS executables.
- http://roguelikes.sauceforge.net/pub/larn/

Variant Ularn
- Independent reworking. Background, changelog, and source.
- http://people.qualcomm.com/ntenny/larn.html

Ularn Spoilers/Reference
- Commentary and sets of well-organized data tables and formulae taken from source files.
- http://www.consistent.org/terran/ularn.txt

iLarn
- Palm OS port of Ularn. Changelog, tips, source and executable files, and build instructions.
- http://roguelike-palm.sourceforge.net/iLarn/

Ularn.org
- Ultra-Larn 1.5 broadens support to include most modern UNIX systems. Changelog and source files.
- http://www.ularn.org/

Ultra-Larn
- Ularn introduces character classes and new levels, monsters, spells, and items. Basic strategy, spoilers, and source files.
- http://www.cordier.com/ularn/