阿比斯的宝藏 - Treasure of abyss

The developer of Treasure of Abyss — a solo indie creator — explicitly announced on January 5, 2021 that the game's development had come to an end. In that post, they stated that the game's story across all four seas was now fully told, and that they would be taking the lessons learned from this project into future games. This is a clear, unambiguous declaration that the game is complete. The game's content journey matches this conclusion. It launched in September 2018 with the East Sea chapter, received the West Sea chapter in February 2019, the North Sea chapter in June 2020, and the January 2021 developer post confirmed the South Sea and all four seas were fully resolved. The sole DLC — a cosmetic fashion box — was released on February 12, 2019 and has no unreleased follow-ups. No further content has been announced after the January 5, 2021 completion statement, and the developer's farewell post expressly pointed toward future projects rather than additional updates to this game.