First 10 episodes free, no sign-up
Oath of Vengeance The Hidden Archmage has 22 episodes (ongoing).
You can watch Oath of Vengeance The Hidden Archmage online on Runotoon, in the web browser on your phone or computer. There is no app to download. Start with Episode 1.
The first 10 episodes are free, and you don’t need an account to start. Each of the other episodes unlocks with 15 Coins. A new free account comes with 75 Coins, you can collect free Coins every day, and Runotoon Pass adds Coins every week.
Oath of Vengeance The Hidden Archmage has 22 episodes on Runotoon so far, and new episodes are still coming. Together they run about 62 minutes. The latest episode came out on November 10, 2026.
After sealing away a black dragon, a legendary wizard loses his father and must live three years with his magic sealed. As a school librarian he quietly watches over his younger brother while enduring ridicule. When a rival academy turns a tournament deadly, he steps forward to protect the students. As the seal expires his power returns, and he must save his allies, uncover the truth behind his father's death and reunite with his brother against the forces of darkness.
Yes. Its original language is English, and it has subtitles in German, Spanish, Filipino, French, Indonesian, Italian, Brazilian Portuguese, Thai, and Vietnamese. Some languages may not cover every episode yet.
