Helpful links

RGSS

Reference Manual

Ruby

Recommended Reading

https://forums.rpgmakerweb.com/index.php?threads/slip-into-ruby-an-introductory-guide-to-rgss-for-beginners.38900/ https://rpgmaker.net/articles/694/

Tutorials:

https://learnxinyminutes.com/docs/ruby/

Reference documentation:

RMXP: https://ruby-doc.org/core-1.8.6/
RMVXA: https://ruby-doc.org/stdlib-1.9.3/
Newest (mkxp-z): https://ruby-doc.org/core-3.0.0/