The following tutorial has been written by Simon yi#6869 on Discord. Alternatively, I also made a video on this:
- Spoiler:
- First open the Steam installer directory and find the location of the following directory
- When switching to different Steam accounts and opening the game, each same Steam account will generate an ID folder.
- Select and copy all the contents in the ID folder of the downloaded data
- After copying, switch and open to a different ID folder, and paste all the files you copied into it.
- When pasting is completed, opening the game will not download the game data again.