Greetings, Rune Hunters.

As previously announced, the minimum supported Android OS requirements will be increased through a data patch on Oct. 28 (Wed) (UTC +9).

This patch is being implemented to comply with Google Play's latest policies.

Please note that UNDECEMBER cannot be played on OS environments below the minimum requirements after the patch. We ask for your kind understanding.

◆ Data Patch Notice

1) Patch Schedule: Oct. 28, 2026 (Wed) 08:00 (UTC +9)

2) Patch Details: Minimum supported Android OS version increased (Android 16 or higher)

3) How to Check OS Version: Device [Settings] → [About Phone] → [Software Information] → Check [Android Version]

※ The data patch will proceed without separate server maintenance.

※ The game remains accessible during the data patch, but temporary disconnects or stuttering may occur.

※ To ensure the patch is applied properly, please completely close and restart the game.

※ Access to the following contents may be unavailable for 10 minutes before and after the patch.

- Abyss Gate, Auction House, Chaos Dungeon, Eunos Dungeon, Arena, Agony Wave

Please check the Android OS Version of your device and update it to the latest version for a smooth gameplay experience.

We will always strive to provide a stable service environment.

Thank you.