Having trouble installing Self-Service Knight : idle RPG? 

Self-Service Knight : idle RPG is available for download on the App Store (Apple), Google Play Store App Store (Apple) and Google Play Store. 

If you are unable to install the game, please check the following.

■ What to check
1. Make sure you have enough storage space on your device. 
2. Make sure your network is connected properly and enabled. 
3. Try uninstalling the game & rebooting your device. Then reinstalling the app.

Also, please check the minimum system requirements:

■ Minimum system requirements
※  AOS (Android) 
- OS version: : 5.1 Lollipop
- Memory required: : 3GB
- Example device: Galaxy Note 4

※  IOS (iPhone)
- OS version: 12
- Memory required: 2GB
- Example device: iPhone 7

※  Even if the minimum specifications are met, using the game may be difficult.