Here’s some steps to play minecraft on batocera(Wine/Windows)
1. Download windows .exe version of this launcher https://mc-launcher.com/special/minecraft
- put it in roms/windows_installers
- install the launcher and have fun, the launcher will do all the job(including installing java)
If you want a custom version of java, download java manually and put in in drive_c\program files and choose java in the launcher settings
