These are very important informational links. Always check these for information. Keep in mind that some of these website are Japanese.

• My modding tutorials: https://www.ffvdgames.com/portfolio/projects/sf1-modding/
• Zaraktheus' Data/Mechanics guide: https://gamefaqs.gamespot.com/ps/198537-saga-frontier/faqs/58412
• The SaGa Frontier Data Project: http://sf.data.project.tripod.com/
• Gamehacking.org GameShark codes: https://gamehacking.org/game/89804
• SaGa Frontier hacking atwiki: https://w.atwiki.jp/sagafrontier/list
• Choi Research Institute: http://tyoikenkyu.web.fc2.com/sagaf/top.html
• Wandel Raum: http://wraum.jp/c_sf1.php
  • Backup site: http://karen.saiin.net/~g-kaizou/c_sf1.php
• More Japanese GameShark codes: https://pscode.wiki.fc2.com/wiki/%E3%82%B5%E3%82%AC%E3%83%95%E3%83%AD%E3%83%B3%E3%83%86%E3%82%A3%E3%82%A2
• Blog of the guy that made the Asellus patches: http://flameshe.blog54.fc2.com/blog-category-78.html
• Some info on save editing: http://web.save-editor.com/bbs/patchcode/ps1/bbs.cgi?list=pickup&num=1319
• Japanese patches: http://sagafrontier.if.land.to/cgi-bin/all.html?1551517896

These are links to active threads or archives of threads that haven't been removed from the internet.

• 5chan: https://5ch.pub/cache/view/gameurawaza/1189489723
• More 5chan: https://5ch.pub/cache/view/gameurawaza/1258983005?from_media=related_link

These are archives of things that were deleted at some point.

• BadHacks: https://archive.fo/dQinn
• BioLab: i don't have the link but i know it exists
• Quickman: http://quickman.hp.infoseek.co.jp/SaGaFrontier1 /" target="_blank" rel="noopener"> https://web.archive.org/web/20091212130411/http://quickman.hp.infoseek.co.jp/SaGaFrontier1/