Quick answer
Natsume formally announced Harvest Moon: Echoes of Teradea on March 11, 2026.
Confirmed details
- The reveal named the game and its platform lineup.
- It introduced the mist, villages, Guardian Spirits, romance, animal companions, islands, and Happilia.
- The initial announcement did not yet give the September release date.
What this means for players
This date marks the start of the verified announcement timeline; preorder and trailer information came later.
This answer is intentionally limited to the current game’s published information. It does not import values, characters, schedules, or mechanics from earlier Harvest Moon titles.
Official source
Natsume title announcement — March 11, 2026. Independently summarized and checked on 2026-07-19.