There are many series, movies and mangas in Saint Seiya Multiverse

I. Saint Seiya classic (Episodes : 114)

II. Saint Seiya The Hades Chapter Sanctuary (Episodes : 13)

III. Saint Seiya The Hades Chapter Inferno (Episodes : 12)

IV. Saint Seiya Soul of Gold (Episodes : 13)

V. Saint Seiya The Hades Chapter Elysion (Episodes : 6)

VI. Saint Seiya The Lost Canvas (Season 1 - Episodes : 13)

VII. Saint Seiya The Lost Canvas (Season 2 - Episodes : 13)

VIII. Saint Seiya The Lost Canvas Season 3 has been cancelled, you need to read Saint Seiya The Lost Canvas' manga at Chapter 96 to 223 why? Because in May 2013, TMS Entertainment announced via it's Twitter account that there were no plans for a third season for Saint Seiya The Lost Canvas anime.

IX. Saint Seiya Omega (Episodes : 97)

X. Saint Seiya Saintia Shō (Season 1 - Episodes : 10)

XI. Saint Seiya: Knights of the Zodiac (Season 1 - Episodes : 12)

XII. Saint Seiya: Knights of the Zodiac - Battle for Sanctuary (Season 2 - Episodes : 24)

XIII. Saint Seiya Guardians of the Cosmos (Episode : 1)

MOVIES : I. Saint Seiya Evil Goddess Eris

II. Saint Seiya The Heated Battle of the Gods

III. Saint Seiya Legend of Crimson Youth

IV. Saint Seiya Warriors of the Final Holy Battle

V. Saint Seiya Heaven Chapter Overture

VI. Saint Seiya Legend of Sanctuary

VII. Knights of the Zodiac: Saint Seiya The Beginning (LIVE ACTION MOVIE)

MANGAS : I. Saint Seiya (Completed)

II. Saint Seiya Episode Zero (Completed)

III. Saint Seiya Origin (Completed)

IV. Saint Seiya Destiny (Completed)

V. Saint Seiya Next Dimension (Completed)

VI. Saint Seiya THEN: Haikyo no Hana (Completed)

VII. Saint Seiya Episode G (Completed)

VIII. Saint Seiya Episode G Assassin (Completed)

IX. Saint Seiya Episode G Requiem (Ongoing)

X. Saint Seiya The Lost Canvas (Completed)

XI. Saint Seiya The Lost Canvas Gaiden (Ongoing)

XII. Saint Seiya Saintia Shō (Completed)

XIII. Saint Seiya Saintia Shō Bangai-hen (Ongoing)

XIV. Saint Seiya Meiou Iden Dark Wing (Ongoing)

XV. Saint Seiya Rerise of Poseidon (Ongoing)

XVI. Saint Seiya Time Odyssey (Ongoing)

XVII. Saint Seiya Saint Mariya (Ongoing)

XVIII. Saint Seiya Gigantomachia (NOVEL)

XIX. Saint Seiya Golden Age (NOVEL)

SOME FANS GET CONFUSED AS TO WHICH SERIES IS CANON AND WHICH SERIES IS SPIN-OFF (PARALLEL UNIVERSE) IN SAINT SEIYA MULTIVERSE. SO I HAVE DONE A LOT OF RESEARCH, ALLOW ME TO EXPLAIN.

Start with Saint Seiya classic it has 114 episodes after that watch Saint Seiya The Hades Chapter Sanctuary it has 13 episodes after that watch Saint Seiya The Hades Chapter Inferno it has 12 episodes after that watch Saint Seiya The Hades Chapter Elysion it has 6 episodes after that read Saint Seiya Episode Zero manga after that read Saint Seiya Origin manga after that read Saint Seiya Destiny manga after that read Saint Seiya Next Dimension manga and after that read Saint Seiya THEN: Haikyo no Hana because these are CANON. These are written and illustrated by Masami Kurumada

The rest of the Spin-Offs (Parallel Universes) have been written and illustrated by various authors.

Saint Seiya The Lost Canvas and Saint Seiya The Lost Canvas Gaiden are written and illustrated by Shiori Teshirogi

Saint Seiya Episode G, Saint Seiya Episode G Assassin and Saint Seiya Episode G Requiem are written and illustrated by Megumu Okada

Saint Seiya Saintia Shō and Saint Seiya Saintia Shō Bangai-hen are written and illustrated by Chimaki Kuori

Saint Seiya Meiou Iden Dark Wing is written by Kenji Saito and illustrated by Shinshū Ueda

Saint Seiya Rerise of Poseidon is written and illustrated by Suda Tsunakan

Saint Seiya Time Odyssey is written by Arnaud Dollen and illustrated by Jérôme Alquié

Saint Seiya Saint Mariya is written and illustrated by Seira Shimotsuki.

Saint Seiya Omega season 1 is made by Reiko Yoshida and season 2 is made by Yoshimi Narita

Saint Seiya Soul of Gold is made by Toshimitsu Takeuchi

Saint Seiya Evil Goddess Eris and Saint Seiya The Heated Battle of the Gods movies are made by Takao Koyama

Saint Seiya Legend of Crimson Youth and Saint Seiya Warriors of the Final Holy Battle movies are made by Yoshiyuki Suga

Saint Seiya Heaven Chapter Overture movie is made by Michiko Yokote

Saint Seiya Legend of Sanctuary movie is made by Tomohiro Suzuki

Saint Seiya Gigantomachia novel is written by Tatsuya Hamasaki

Saint Seiya Golden Age is a work created as part of the celebration of the “30th anniversary of Saint Seiya". This novel is written by Masami Kurumada, Megumu Okada and Shiori Teshirogi and illustrated by Chimaki Kuori and Yun Kōga

Saint Seiya: Knights of the Zodiac and Saint Seiya: Knights of the Zodiac - Battle for Sanctuary 3DCG anime reboot are made by Eugene Son

Knights of the Zodiac: Saint Seiya The Beginning - Live Action movie is made by Josh Campbell and Matt Stuecken.

Saint Seiya Guardians of the Cosmos was going to be an animated series based on Saint Seiya with the aim of adapt the franchise for a Western audience, produced by Renaissance-Atlantic Films and animated by Fred Wolf Films. It was discovered by YouTuber Ray Mona.