At least 8GB (though 4GB will work for single instances).
To get the most out of this specific old version, navigate to the settings menu (gear icon) and apply these tweaks: msi app player old version 4.240
The MSI App Player old version 4.240 is a classic example of "if it isn't broken, don't fix it." For players dealing with older Windows versions or those who find version 5 too stripped back, 4.240 offers a feature-rich, highly compatible environment. By following the optimization steps above, you can enjoy mobile gaming with the precision and power of a desktop PC. At least 8GB (though 4GB will work for single instances)
Because this is an older version, it is exceptionally forgiving on hardware. To run it optimally, you should aim for: Windows 7, 8, or 10 (64-bit). Because this is an older version, it is
Intel or AMD Multi-Core processor with a Single Thread PassMark score > 1000.
5GB of free disk space (SSD preferred for faster loading). How to Install MSI App Player 4.240 Safely