Hello, Aaron Thomas.
On 06.01.21 00:34 you wrote:

 AT> Good point! I see my mistake now. I'm following someone's 
 AT> instructions on how to use doorway.exe, which calls for DOSBox, 
 AT> but I think these instructions are aimed for Windows users - 
 AT> probably Windows users need Microsoft Visual C++ 2010 SP1 in order 
 AT> to use DosBox.

As far as I know, you can install dosbox simply with apt on Ubuntu.

Here's the article on this: https://help.ubuntu.com/community/DOSBox

The instruction is pretty straightforward.
 
 AT> I should be fine as long as I have DOSBox installed. I was 
 AT> overthinking it.

Do you do it for oldschool gaming? I also was thinking about this a while ago, but actually I would prefer Dendy or similar (it was my first console :) ). And GNU/Linux has package for this also!

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