Download Client
Get the Second Moon Dekaron client and start playing in minutes.
Second Moon Dekaron Client v2.4.1
Full client — 3.8 GB — Windows 7/10/11 compatible
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System Requirements
| OS | Windows 7 / 10 / 11 (64-bit) |
| CPU | Intel Core i3 2.4 GHz |
| RAM | 4 GB |
| GPU | NVIDIA GTX 650 / AMD R7 250 |
| Storage | 8 GB free space |
| Network | Broadband internet connection |
| OS | Windows 10 / 11 (64-bit) |
| CPU | Intel Core i5 3.0 GHz or better |
| RAM | 8 GB |
| GPU | NVIDIA GTX 1060 / AMD RX 580 |
| Storage | 10 GB SSD recommended |
| Network | Low-latency broadband |
Installation Guide
- 01
Download the Client
Click the Download button above. The installer is approximately 3.8 GB. Your browser will prompt you to save the file.
- 02
Run the Installer
Open the downloaded .exe file. If Windows SmartScreen appears, click "More Info" then "Run Anyway". The installer is safe.
- 03
Choose Install Directory
Select your preferred install location (default: C:\SecondMoon). Avoid Program Files if possible to prevent permission issues.
- 04
Wait for Extraction
The installer will extract all game files. This may take 5–10 minutes depending on your drive speed. Do not interrupt.
- 05
Launch & Patch
Run SecondMoonLauncher.exe from your install folder or the desktop shortcut. The launcher will apply any available patches automatically.
- 06
Create an Account & Play
Register your account at the login screen. Choose your class and enter the world. See our Beginner guides if this is your first time.