Simulador de stats:
http://rode.doddlercon.com/db/calc/index.php

Simulador de Skill
http://skill.rune-nifelheim.com/simulador/

Simulador Skill/stats
http://www.ragnasim.net/rosim/main-iro.html

Simulador de personajes y firmas
http://charsim.rune-nifelheim.com/

Item Database
http://ratemyserver.net/index.php?page=item_db

Quests jobs
http://quest.rune-nifelheim.com//

Lista de Quest generales
http://rune-nifelheim.com/quests.php

Guia de Pets
http://rune-nifelheim.com/petinfo.php

Upgrade Price Calculator
http://cincinato.org/ro-upgrade-calc/

Forge Calculator
http://folk.ntnu.no/magnusrk/yeef/forge/