There are numerous users who desire to have DOS gaming with DOSBOX with graphics, which will be stretched all over the monitor.
DOSBOX is a fantastic emulator for retrogaming.
For those who like gaming, especially DOSBOX may give nice important, large, opportunities since it does not need a high expensive hardware.
Games on Dosbox can work very well, fast, and without too much CPU usage, just because DOSBOX is well programmed for 16 bits.
Here the configuration and workaround which will help you:
https://github.com/spartrekus/Fullscree ... spberry-PI
The file "dosbox config" can be seen to start the game for game play on DOSBOX.
All the best for gamers on Raspberry PI !